diff --git a/.gn b/.gn
deleted file mode 100644
index aaaf5e0a4261..000000000000
--- a/.gn
+++ /dev/null
@@ -1,8 +0,0 @@
-# This file is used by the experimental meta-buildsystem in src/tools/gn to
-# find the root of the source tree and to set startup options.
-
-# The location of the build configuration file.
-buildconfig = "//build/config/BUILDCONFIG.gn"
-
-# The secondary source root is a parallel directory tree where
-secondary_source = "//tools/gn/secondary/"
diff --git a/tools/gn/BUILD.gn b/tools/gn/BUILD.gn
deleted file mode 100644
index ccb54113238f..000000000000
--- a/tools/gn/BUILD.gn
+++ /dev/null
@@ -1,153 +0,0 @@
-static_library("gn_lib") {
-  sources = [
-    "build_settings.cc",
-    "build_settings.h",
-    "command_desc.cc",
-    "command_desc.h",
-    "command_gen.cc",
-    "command_gen.h",
-    "command.cc",
-    "config.cc",
-    "config.h",
-    "config_values.h",
-    "config_values_extractors.cc",
-    "config_values_extractors.h",
-    "config_values_generator.cc",
-    "config_values_generator.h",
-    "err.cc",
-    "err.h",
-    "escape.cc",
-    "escape.h",
-    "file_template.cc",
-    "file_template.h",
-    "filesystem_utils.cc",
-    "filesystem_utils.h",
-    "functions.cc",
-    "functions.h",
-    "functions_target.cc",
-    "function_exec_script.cc",
-    "function_process_file_template.cc",
-    "function_read_file.cc",
-    "function_set_default_toolchain.cc",
-    "function_template.cc",
-    "function_toolchain.cc",
-    "function_write_file.cc",
-    "import_manager.cc",
-    "import_manager.h",
-    "input_conversion.cc",
-    "input_conversion.h",
-    "input_file.cc",
-    "input_file.h",
-    "input_file_manager.cc",
-    "input_file_manager.h",
-    "item.cc",
-    "item.h",
-    "item_node.cc",
-    "item_node.h",
-    "item_tree.cc",
-    "item_tree.h",
-    "label.cc",
-    "label.h",
-    "location.h",
-    "ninja_build_writer.cc",
-    "ninja_build_writer.h",
-    "ninja_helper.cc",
-    "ninja_helper.h",
-    "ninja_target_writer.cc",
-    "ninja_target_writer.h",
-    "ninja_toolchain_writer.cc",
-    "ninja_toolchain_writer.h",
-    "ninja_writer.cc",
-    "ninja_writer.h",
-    "operators.cc",
-    "operators.h",
-    "output_file.h",
-    "parse_tree.cc",
-    "parse_tree.h",
-    "parser.cc",
-    "parser.h",
-    "path_output.cc",
-    "path_output.h",
-    "pattern.cc",
-    "pattern.h",
-    "scheduler.cc",
-    "scheduler.h",
-    "scope.cc",
-    "scope.h",
-    "scope_per_file_provider.cc",
-    "scope_per_file_provider.h",
-    "settings.cc",
-    "settings.h",
-    "setup.cc",
-    "setup.h",
-    "source_dir.cc",
-    "source_dir.h",
-    "source_file.cc",
-    "source_file.h",
-    "standard_out.cc",
-    "standard_out.h",
-    "string_utils.cc",
-    "string_utils.h",
-    "target.cc",
-    "target.h",
-    "target_generator.cc",
-    "target_generator.h",
-    "target_manager.cc",
-    "target_manager.h",
-    "token.cc",
-    "token.h",
-    "tokenizer.cc",
-    "tokenizer.h",
-    "toolchain.cc",
-    "toolchain.h",
-    "toolchain_manager.cc",
-    "toolchain_manager.h",
-    "value.cc",
-    "value.h",
-    "value_extractors.cc",
-    "value_extractors.h",
-  ]
-  deps = [
-    "//base",
-    "//base/third_party/dynamic_annotations",
-  ]
-}
-
-executable("gn") {
-  sources = [
-    "gn_main.cc",
-  ]
-  deps = [
-    ":gn_lib",
-  ]
-}
-
-test("gn_unittests") {
-  sources = [
-    "escape_unittest.cc",
-    "file_template_unittest.cc",
-    "filesystem_utils_unittest.cc",
-    "input_conversion_unittest.cc",
-    "label_unittest.cc",
-    "ninja_helper_unittest.cc",
-    "parser_unittest.cc",
-    "path_output_unittest.cc",
-    "pattern_unittest.cc",
-    "source_dir_unittest.cc",
-    "string_utils_unittest.cc",
-    "target_generator_unittest.cc",
-    "target_manager_unittest.cc",
-    "tokenizer_unittest.cc",
-  ]
-  deps = [
-    ":gn_lib",
-    "//base:run_all_unittests",
-    "//base:test_support_base",
-    "//testing:gtest",
-  ]
-}
-
-executable("generate_test_gn_data") {
-  sources = [ "generate_test_gn_data.cc" ]
-  deps = [ "//base" ]
-}
diff --git a/tools/gn/OWNERS b/tools/gn/OWNERS
deleted file mode 100644
index 06fefbf4eccb..000000000000
--- a/tools/gn/OWNERS
+++ /dev/null
@@ -1 +0,0 @@
-brettw@chromium.org
diff --git a/tools/gn/README.txt b/tools/gn/README.txt
deleted file mode 100644
index 0a637bf47728..000000000000
--- a/tools/gn/README.txt
+++ /dev/null
@@ -1,7 +0,0 @@
-GN "Generate Ninja"
-
-This tool is an experimental metabuildsystem. It is not currently in a state
-where it is ready for public consumption.
-
-It is not currently used in the build and there are currently no plans to
-replace GYP.
diff --git a/tools/gn/build_settings.cc b/tools/gn/build_settings.cc
deleted file mode 100644
index 09b4c99589c5..000000000000
--- a/tools/gn/build_settings.cc
+++ /dev/null
@@ -1,44 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/build_settings.h"
-
-#include "tools/gn/filesystem_utils.h"
-
-BuildSettings::BuildSettings()
-    : item_tree_(),
-      target_manager_(this),
-      toolchain_manager_(this) {
-}
-
-BuildSettings::~BuildSettings() {
-}
-
-void BuildSettings::SetSecondarySourcePath(const SourceDir& d) {
-  secondary_source_path_ = GetFullPath(d);
-}
-
-void BuildSettings::SetBuildDir(const SourceDir& d) {
-  build_dir_ = d;
-  build_to_source_dir_string_ = InvertDir(d);
-}
-
-base::FilePath BuildSettings::GetFullPath(const SourceFile& file) const {
-  return file.Resolve(root_path_);
-}
-
-base::FilePath BuildSettings::GetFullPath(const SourceDir& dir) const {
-  return dir.Resolve(root_path_);
-}
-
-base::FilePath BuildSettings::GetFullPathSecondary(
-    const SourceFile& file) const {
-  return file.Resolve(secondary_source_path_);
-}
-
-base::FilePath BuildSettings::GetFullPathSecondary(
-    const SourceDir& dir) const {
-  return dir.Resolve(secondary_source_path_);
-}
-
diff --git a/tools/gn/build_settings.h b/tools/gn/build_settings.h
deleted file mode 100644
index fe0426674be0..000000000000
--- a/tools/gn/build_settings.h
+++ /dev/null
@@ -1,110 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_BUILD_SETTINGS_H_
-#define TOOLS_GN_BUILD_SETTINGS_H_
-
-#include "base/basictypes.h"
-#include "base/callback.h"
-#include "base/files/file_path.h"
-#include "tools/gn/item_tree.h"
-#include "tools/gn/scope.h"
-#include "tools/gn/source_dir.h"
-#include "tools/gn/source_file.h"
-#include "tools/gn/target_manager.h"
-#include "tools/gn/toolchain_manager.h"
-
-// Settings for one build, which is one toplevel output directory. There
-// may be multiple Settings objects that refer to this, one for each toolchain.
-class BuildSettings {
- public:
-  typedef base::Callback<void(const Target*)> TargetResolvedCallback;
-
-  BuildSettings();
-  ~BuildSettings();
-
-  // Absolute path of the source root on the local system. Everything is
-  // relative to this.
-  const base::FilePath& root_path() const { return root_path_; }
-  void set_root_path(const base::FilePath& r) { root_path_ = r; }
-
-  // When nonempty, specifies a parallel directory higherarchy in which to
-  // search for buildfiles if they're not found in the root higherarchy. This
-  // allows us to keep buildfiles in a separate tree during development.
-  const base::FilePath& secondary_source_path() const {
-    return secondary_source_path_;
-  }
-  void SetSecondarySourcePath(const SourceDir& d);
-
-  // Path of the python executable to run scripts with.
-  base::FilePath python_path() const { return python_path_; }
-  void set_python_path(const base::FilePath& p) { python_path_ = p; }
-
-  const SourceFile& build_config_file() const { return build_config_file_; }
-  void set_build_config_file(const SourceFile& f) { build_config_file_ = f; }
-
-  // The build directory is the root of all output files. The default toolchain
-  // files go into here, and non-default toolchains will have separate
-  // toolchain-specific root directories inside this.
-  const SourceDir& build_dir() const { return build_dir_; }
-  void SetBuildDir(const SourceDir& dir);
-
-  // The inverse of relative_build_dir, ending with a separator.
-  // Example: relative_build_dir_ = "out/Debug/" this will be "../../"
-  const std::string& build_to_source_dir_string() const {
-    return build_to_source_dir_string_;
-  }
-
-  // These accessors do not return const objects since the resulting objects
-  // are threadsafe. In this setting, we use constness primarily to ensure
-  // that the Settings object is used in a threadsafe manner. Although this
-  // violates the concept of logical constness, that's less important in our
-  // application, and actually implementing this in a way that preserves
-  // logical constness is cumbersome.
-  ItemTree& item_tree() const { return item_tree_; }
-  TargetManager& target_manager() const { return target_manager_; }
-  ToolchainManager& toolchain_manager() const { return toolchain_manager_; }
-
-  // Returns the full absolute OS path cooresponding to the given file in the
-  // root source tree.
-  base::FilePath GetFullPath(const SourceFile& file) const;
-  base::FilePath GetFullPath(const SourceDir& dir) const;
-
-  // Returns the absolute OS path inside the secondary source path. Will return
-  // an empty FilePath if the secondary source path is empty. When loading a
-  // buildfile, the GetFullPath should always be consulted first.
-  base::FilePath GetFullPathSecondary(const SourceFile& file) const;
-  base::FilePath GetFullPathSecondary(const SourceDir& dir) const;
-
-  // This is the callback to execute when a target is marked resolved. If we
-  // don't need to do anything, this will be null. When a target is resolved,
-  // this callback should be posted to the scheduler pool so the work is
-  // distributed properly.
-  const TargetResolvedCallback& target_resolved_callback() const {
-    return target_resolved_callback_;
-  }
-  void set_target_resolved_callback(const TargetResolvedCallback& cb) {
-    target_resolved_callback_ = cb;
-  }
-
- private:
-  base::FilePath root_path_;
-  base::FilePath secondary_source_path_;
-  base::FilePath python_path_;
-
-  SourceFile build_config_file_;
-  SourceDir build_dir_;
-  std::string build_to_source_dir_string_;
-
-  TargetResolvedCallback target_resolved_callback_;
-
-  // See getters above.
-  mutable ItemTree item_tree_;
-  mutable TargetManager target_manager_;
-  mutable ToolchainManager toolchain_manager_;
-
-  DISALLOW_COPY_AND_ASSIGN(BuildSettings);
-};
-
-#endif  // TOOLS_GN_BUILD_SETTINGS_H_
diff --git a/tools/gn/command_desc.cc b/tools/gn/command_desc.cc
deleted file mode 100644
index bf91776c73fd..000000000000
--- a/tools/gn/command_desc.cc
+++ /dev/null
@@ -1,201 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include <algorithm>
-#include <set>
-
-#include "tools/gn/commands.h"
-#include "tools/gn/config.h"
-#include "tools/gn/item.h"
-#include "tools/gn/item_node.h"
-#include "tools/gn/label.h"
-#include "tools/gn/setup.h"
-#include "tools/gn/standard_out.h"
-#include "tools/gn/target.h"
-
-namespace {
-
-struct CompareTargetLabel {
-  bool operator()(const Target* a, const Target* b) const {
-    return a->label() < b->label();
-  }
-};
-
-const Target* GetTargetForDesc(const std::vector<std::string>& args) {
-  // Deliberately leaked to avoid expensive process teardown.
-  Setup* setup = new Setup;
-  if (!setup->DoSetup())
-    return NULL;
-
-  // FIXME(brettw): set the output dir to be a sandbox one to avoid polluting
-  // the real output dir with files written by the build scripts.
-
-  // Do the actual load. This will also write out the target ninja files.
-  if (!setup->Run())
-    return NULL;
-
-  // Need to resolve the label after we know the default toolchain.
-  // TODO(brettw) find the current directory and resolve the input label
-  // relative to that.
-  Label default_toolchain = setup->build_settings().toolchain_manager()
-      .GetDefaultToolchainUnlocked();
-  Value arg_value(NULL, args[0]);
-  Err err;
-  Label label = Label::Resolve(SourceDir(), default_toolchain, arg_value, &err);
-  if (err.has_error()) {
-    err.PrintToStdout();
-    return NULL;
-  }
-
-  ItemNode* node;
-  {
-    base::AutoLock lock(setup->build_settings().item_tree().lock());
-    node = setup->build_settings().item_tree().GetExistingNodeLocked(label);
-  }
-  if (!node) {
-    Err(Location(), "",
-        "I don't know about this \"" + label.GetUserVisibleName(false) +
-        "\"").PrintToStdout();
-    return NULL;
-  }
-
-  const Target* target = node->item()->AsTarget();
-  if (!target) {
-    Err(Location(), "Not a target.",
-        "The \"" + label.GetUserVisibleName(false) + "\" thing\n"
-        "is not a target. Somebody should probably implement this command for "
-        "other\nitem types.");
-    return NULL;
-  }
-
-  return target;
-}
-
-void RecursiveCollectDeps(const Target* target, std::set<Label>* result) {
-  if (result->find(target->label()) != result->end())
-    return;  // Already did this target.
-  result->insert(target->label());
-
-  const std::vector<const Target*>& deps = target->deps();
-  for (size_t i = 0; i < deps.size(); i++)
-    RecursiveCollectDeps(deps[i], result);
-}
-
-// Prints dependencies of the given target (not the target itself).
-void RecursivePrintDeps(const Target* target,
-                        const Label& default_toolchain,
-                        int indent_level) {
-  std::vector<const Target*> sorted_deps = target->deps();
-  std::sort(sorted_deps.begin(), sorted_deps.end(), CompareTargetLabel());
-
-  std::string indent(indent_level * 2, ' ');
-  for (size_t i = 0; i < sorted_deps.size(); i++) {
-    OutputString(indent +
-        sorted_deps[i]->label().GetUserVisibleName(default_toolchain) + "\n");
-    RecursivePrintDeps(sorted_deps[i], default_toolchain, indent_level + 1);
-  }
-}
-
-}  // namespace
-
-int RunDescCommand(const std::vector<std::string>& args) {
-  if (args.size() != 1) {
-    Err(Location(), "You're holding it wrong.",
-        "Usage: \"gn desc <target_name>\"").PrintToStdout();
-    return NULL;
-  }
-
-  const Target* target = GetTargetForDesc(args);
-  if (!target)
-    return 1;
-
-  // Generally we only want to display toolchains on labels when the toolchain
-  // is different than the default one for this target (which we always print
-  // in the header).
-  Label target_toolchain = target->label().GetToolchainLabel();
-
-  // Header.
-  std::string title_target =
-      "Target: " + target->label().GetUserVisibleName(false);
-  std::string title_toolchain =
-      "Toolchain: " + target_toolchain.GetUserVisibleName(false);
-  OutputString(title_target + "\n", DECORATION_YELLOW);
-  OutputString(title_toolchain + "\n", DECORATION_YELLOW);
-  OutputString(std::string(
-      std::max(title_target.size(), title_toolchain.size()), '=') + "\n");
-
-  OutputString("Sources:\n");
-  const Target::FileList& sources = target->sources();
-  for (size_t i = 0; i < sources.size(); i++)
-    OutputString("  " + sources[i].value() + "\n");
-
-  // Configs (don't sort since the order determines how things are processed).
-  OutputString("\nConfigs:\n");
-  const std::vector<const Config*>& configs = target->configs();
-  for (size_t i = 0; i < configs.size(); i++) {
-    OutputString("  " +
-        configs[i]->label().GetUserVisibleName(target_toolchain) + "\n");
-  }
-
-  // Deps. Sorted for convenience. Sort the labels rather than the strings so
-  // that "//foo:bar" comes before "//foo/third_party:bar".
-  OutputString("\nDirect dependencies:\n"
-               "(Use \"gn deps\" or \"gn tree\" to display recursive deps.)\n");
-  const std::vector<const Target*>& deps = target->deps();
-  std::vector<Label> sorted_deps;
-  for (size_t i = 0; i < deps.size(); i++)
-    sorted_deps.push_back(deps[i]->label());
-  std::sort(sorted_deps.begin(), sorted_deps.end());
-  for (size_t i = 0; i < sorted_deps.size(); i++) {
-    OutputString("  " + sorted_deps[i].GetUserVisibleName(target_toolchain) +
-                 "\n");
-  }
-  return 0;
-}
-
-int RunDepsCommand(const std::vector<std::string>& args) {
-  if (args.size() != 1) {
-    Err(Location(), "You're holding it wrong.",
-        "Usage: \"gn deps <target_name>\"").PrintToStdout();
-    return NULL;
-  }
-
-  const Target* target = GetTargetForDesc(args);
-  if (!target)
-    return 1;
-
-  // Generally we only want to display toolchains on labels when the toolchain
-  // is different than the default one for this target (which we always print
-  // in the header).
-  Label target_toolchain = target->label().GetToolchainLabel();
-
-  std::set<Label> all_deps;
-  RecursiveCollectDeps(target, &all_deps);
-
-  OutputString("Recursive dependencies of " +
-               target->label().GetUserVisibleName(true) + "\n",
-               DECORATION_YELLOW);
-
-  for (std::set<Label>::iterator i = all_deps.begin();
-       i != all_deps.end(); ++i)
-    OutputString("  " + i->GetUserVisibleName(target_toolchain) + "\n");
-  return 0;
-}
-
-int RunTreeCommand(const std::vector<std::string>& args) {
-  if (args.size() != 1) {
-    Err(Location(), "You're holding it wrong.",
-        "Usage: \"gn tree <target_name>\"").PrintToStdout();
-    return NULL;
-  }
-
-  const Target* target = GetTargetForDesc(args);
-  if (!target)
-    return 1;
-
-  OutputString(target->label().GetUserVisibleName(false) + "\n");
-  RecursivePrintDeps(target, target->label().GetToolchainLabel(), 1);
-
-  return 0;
-}
diff --git a/tools/gn/command_gen.cc b/tools/gn/command_gen.cc
deleted file mode 100644
index ab64a8d5c721..000000000000
--- a/tools/gn/command_gen.cc
+++ /dev/null
@@ -1,66 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "base/bind.h"
-#include "base/command_line.h"
-#include "base/strings/string_number_conversions.h"
-#include "base/time/time.h"
-#include "tools/gn/build_settings.h"
-#include "tools/gn/commands.h"
-#include "tools/gn/ninja_target_writer.h"
-#include "tools/gn/ninja_writer.h"
-#include "tools/gn/scheduler.h"
-#include "tools/gn/setup.h"
-#include "tools/gn/standard_out.h"
-
-namespace {
-
-// Suppress output on success.
-const char kSwitchQuiet[] = "q";
-
-}  // namespace
-
-int RunGenCommand(const std::vector<std::string>& args) {
-  base::TimeTicks begin_time = base::TimeTicks::Now();
-
-  // Deliberately leaked to avoid expensive process teardown.
-  Setup* setup = new Setup;
-  if (!setup->DoSetup())
-    return 1;
-
-  // Cause the load to also generate the ninja files for each target.
-  setup->build_settings().set_target_resolved_callback(
-      base::Bind(&NinjaTargetWriter::RunAndWriteFile));
-
-  // Do the actual load. This will also write out the target ninja files.
-  if (!setup->Run())
-    return 1;
-
-  // Write the root ninja files.
-  if (!NinjaWriter::RunAndWriteFiles(&setup->build_settings())) {
-    Err(Location(),
-        "Couldn't open root buildfile(s) for writing").PrintToStdout();
-    return 1;
-  }
-
-  base::TimeTicks end_time = base::TimeTicks::Now();
-
-  if (!CommandLine::ForCurrentProcess()->HasSwitch(kSwitchQuiet)) {
-    OutputString("Done. ", DECORATION_GREEN);
-
-    // TODO(brettw) get the number of targets without getting the entire list.
-    std::vector<const Target*> all_targets;
-    setup->build_settings().target_manager().GetAllTargets(&all_targets);
-    std::string stats = "Generated " +
-        base::IntToString(static_cast<int>(all_targets.size())) +
-        " targets from " +
-        base::IntToString(
-            setup->scheduler().input_file_manager()->GetInputFileCount()) +
-        " files in " +
-        base::IntToString((end_time - begin_time).InMilliseconds()) + "ms\n";
-    OutputString(stats);
-  }
-
-  return 0;
-}
diff --git a/tools/gn/commands.h b/tools/gn/commands.h
deleted file mode 100644
index 1d4449cc1c9d..000000000000
--- a/tools/gn/commands.h
+++ /dev/null
@@ -1,18 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_COMMANDS_H_
-#define TOOLS_GN_COMMANDS_H_
-
-#include <string>
-#include <vector>
-
-// The different commands we have, returns the value we should return from
-// main().
-int RunDepsCommand(const std::vector<std::string>& args);
-int RunDescCommand(const std::vector<std::string>& args);
-int RunGenCommand(const std::vector<std::string>& args);
-int RunTreeCommand(const std::vector<std::string>& args);
-
-#endif  // TOOLS_GN_COMMANDS_H_
diff --git a/tools/gn/config.cc b/tools/gn/config.cc
deleted file mode 100644
index 1175d7f3c8bf..000000000000
--- a/tools/gn/config.cc
+++ /dev/null
@@ -1,78 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/config.h"
-
-#include "tools/gn/err.h"
-#include "tools/gn/input_file_manager.h"
-#include "tools/gn/item_node.h"
-#include "tools/gn/item_tree.h"
-#include "tools/gn/scheduler.h"
-
-Config::Config(const Label& label) : Item(label) {
-}
-
-Config::~Config() {
-}
-
-Config* Config::AsConfig() {
-  return this;
-}
-
-const Config* Config::AsConfig() const {
-  return this;
-}
-
-// static
-Config* Config::GetConfig(const Settings* settings,
-                          const LocationRange& specified_from_here,
-                          const Label& label,
-                          Item* dep_from,
-                          Err* err) {
-  DCHECK(!label.is_null());
-
-  ItemTree* tree = &settings->build_settings()->item_tree();
-  base::AutoLock lock(tree->lock());
-
-  ItemNode* node = tree->GetExistingNodeLocked(label);
-  Config* config = NULL;
-  if (!node) {
-    config = new Config(label);
-    node = new ItemNode(config);
-    tree->AddNodeLocked(node);
-
-    // Only schedule loading the given target if somebody is depending on it
-    // (and we optimize by not re-asking it to run the current file).
-    // Otherwise, we're probably generating it right now.
-    if (dep_from && dep_from->label().dir() != label.dir()) {
-      settings->build_settings()->toolchain_manager().ScheduleInvocationLocked(
-          specified_from_here, label.GetToolchainLabel(), label.dir(),
-          err);
-    }
-  } else if ((config = node->item()->AsConfig())) {
-    // Previously saw this item as a config.
-
-    // If we have no dep_from, we're generating it. In this case, it had better
-    // not already be generated.
-    if (!dep_from && node->state() != ItemNode::REFERENCED) {
-      *err = Err(specified_from_here, "Duplicate config definition.",
-          "You already told me about a config with this name.");
-      return NULL;
-    }
-  } else {
-    // Previously saw this thing as a non-config.
-    *err = Err(specified_from_here,
-               "Config name already used.",
-               "Previously you specified a " +
-               node->item()->GetItemTypeName() + " with this name instead.");
-    return NULL;
-  }
-
-  // Keep a record of the guy asking us for this dependency. We know if
-  // somebody is adding a dependency, that guy it himself not resolved.
-  if (dep_from && node->state() != ItemNode::RESOLVED)
-    tree->GetExistingNodeLocked(dep_from->label())->AddDependency(node);
-
-  return config;
-}
diff --git a/tools/gn/config.h b/tools/gn/config.h
deleted file mode 100644
index 0ee9b7ba36ac..000000000000
--- a/tools/gn/config.h
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_CONFIG_H_
-#define TOOLS_GN_CONFIG_H_
-
-#include "base/compiler_specific.h"
-#include "tools/gn/config_values.h"
-#include "tools/gn/item.h"
-
-class Err;
-class ItemTree;
-class LocationRange;
-class Settings;
-
-// Represents a named config in the dependency graph.
-class Config : public Item {
- public:
-  Config(const Label& label);
-  virtual ~Config();
-
-  virtual Config* AsConfig() OVERRIDE;
-  virtual const Config* AsConfig() const OVERRIDE;
-
-  ConfigValues& config_values() { return config_values_; }
-  const ConfigValues& config_values() const { return config_values_; }
-
-  // Gets or creates a config.
-  //
-  // This is like the TargetManager is for Targets, but Configs are so much
-  // simpler that this one function is all we need.
-  static Config* GetConfig(const Settings* settings,
-                           const LocationRange& specified_from_here,
-                           const Label& label,
-                           Item* dep_from,
-                           Err* err);
-
- private:
-  ConfigValues config_values_;
-
-  DISALLOW_COPY_AND_ASSIGN(Config);
-};
-
-#endif  // TOOLS_GN_CONFIG_H_
diff --git a/tools/gn/config_values.cc b/tools/gn/config_values.cc
deleted file mode 100644
index 53466dfd7918..000000000000
--- a/tools/gn/config_values.cc
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/config_values.h"
-
-ConfigValues::ConfigValues() {
-}
-
-ConfigValues::~ConfigValues() {
-}
diff --git a/tools/gn/config_values.h b/tools/gn/config_values.h
deleted file mode 100644
index e7c17122af0f..000000000000
--- a/tools/gn/config_values.h
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_CONFIG_VALUES_H_
-#define TOOLS_GN_CONFIG_VALUES_H_
-
-#include <string>
-#include <vector>
-
-#include "base/basictypes.h"
-#include "tools/gn/source_dir.h"
-
-// Holds the values (includes, defines, compiler flags, etc.) for a given
-// config or target.
-class ConfigValues {
- public:
-  ConfigValues();
-  ~ConfigValues();
-
-  const std::vector<SourceDir>& includes() const { return includes_; }
-  void swap_in_includes(std::vector<SourceDir>* lo) { includes_.swap(*lo); }
-
-  const std::vector<std::string>& defines() const { return defines_; }
-  void swap_in_defines(std::vector<std::string>* d) { defines_.swap(*d); }
-
-  const std::vector<std::string>& cflags() const { return cflags_; }
-  void swap_in_cflags(std::vector<std::string>* lo) { cflags_.swap(*lo); }
-
-  const std::vector<std::string>& cflags_c() const { return cflags_c_; }
-  void swap_in_cflags_c(std::vector<std::string>* lo) { cflags_c_.swap(*lo); }
-
-  const std::vector<std::string>& cflags_cc() const { return cflags_cc_; }
-  void swap_in_cflags_cc(std::vector<std::string>* lo) { cflags_cc_.swap(*lo); }
-
-  const std::vector<std::string>& ldflags() const { return ldflags_; }
-  void swap_in_ldflags(std::vector<std::string>* lo) { ldflags_.swap(*lo); }
-
- private:
-  std::vector<SourceDir> includes_;
-  std::vector<std::string> defines_;
-  std::vector<std::string> cflags_;
-  std::vector<std::string> cflags_c_;
-  std::vector<std::string> cflags_cc_;
-  std::vector<std::string> ldflags_;
-
-  DISALLOW_COPY_AND_ASSIGN(ConfigValues);
-};
-
-#endif  // TOOLS_GN_CONFIG_VALUES_H_
diff --git a/tools/gn/config_values_extractors.cc b/tools/gn/config_values_extractors.cc
deleted file mode 100644
index 96b514aae06a..000000000000
--- a/tools/gn/config_values_extractors.cc
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/config_values_extractors.h"
-
-namespace {
-
-struct StringWriter {
-  void operator()(const std::string& s, std::ostream& out) const {
-    out << " " << s;
-  }
-};
-
-}  // namespace
-
-void RecursiveTargetConfigStringsToStream(
-    const Target* target,
-    const std::vector<std::string>& (ConfigValues::* getter)() const,
-    std::ostream& out) {
-  RecursiveTargetConfigToStream(target, getter, StringWriter(), out);
-}
diff --git a/tools/gn/config_values_extractors.h b/tools/gn/config_values_extractors.h
deleted file mode 100644
index 0eaa2c9263b6..000000000000
--- a/tools/gn/config_values_extractors.h
+++ /dev/null
@@ -1,50 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_CONFIG_VALUES_EXTRACTORS_H_
-#define TOOLS_GN_CONFIG_VALUES_EXTRACTORS_H_
-
-#include <ostream>
-#include <string>
-#include <vector>
-
-#include "tools/gn/config.h"
-#include "tools/gn/config_values.h"
-#include "tools/gn/target.h"
-
-template<typename T, class Writer>
-inline void ConfigValuesToStream(
-    const ConfigValues& values,
-    const std::vector<T>& (ConfigValues::* getter)() const,
-    const Writer& writer,
-    std::ostream& out) {
-  const std::vector<T>& v = (values.*getter)();
-  for (size_t i = 0; i < v.size(); i++)
-    writer(v[i], out);
-};
-
-template<typename T, class Writer>
-inline void RecursiveTargetConfigToStream(
-    const Target* target,
-    const std::vector<T>& (ConfigValues::* getter)() const,
-    const Writer& writer,
-    std::ostream& out) {
-  // Write all configs in reverse order (to get oldest first, which will look
-  // more normal in the output).
-  for (int i = static_cast<int>(target->configs().size() - 1); i >= 0; i--) {
-    ConfigValuesToStream(target->configs()[i]->config_values(), getter,
-                         writer, out);
-  }
-
-  // Last write from the config from the Target itself, if any.
-  ConfigValuesToStream(target->config_values(), getter, writer, out);
-}
-
-// Writes the values out as strings with no transformation.
-void RecursiveTargetConfigStringsToStream(
-    const Target* target,
-    const std::vector<std::string>& (ConfigValues::* getter)() const,
-    std::ostream& out);
-
-#endif  // TOOLS_GN_CONFIG_VALUES_EXTRACTORS_H_
diff --git a/tools/gn/config_values_generator.cc b/tools/gn/config_values_generator.cc
deleted file mode 100644
index 34c3f678f809..000000000000
--- a/tools/gn/config_values_generator.cc
+++ /dev/null
@@ -1,89 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/config_values_generator.h"
-
-#include "tools/gn/config_values.h"
-#include "tools/gn/scope.h"
-#include "tools/gn/value.h"
-#include "tools/gn/value_extractors.h"
-
-namespace {
-
-void GetStringList(
-    const Scope* scope,
-    const char* var_name,
-    ConfigValues* config_values,
-    void (ConfigValues::* swapper_inner)(std::vector<std::string>*),
-    Err* err) {
-  const Value* value = scope->GetValue(var_name);
-  if (!value)
-    return;  // No value, empty input and succeed.
-
-  std::vector<std::string> result;
-  ExtractListOfStringValues(*value, &result, err);
-  (config_values->*swapper_inner)(&result);
-}
-
-}  // namespace
-
-ConfigValuesGenerator::ConfigValuesGenerator(ConfigValues* dest_values,
-                                             const Scope* scope,
-                                             const Token& function_token,
-                                             const SourceDir& input_dir,
-                                             Err* err)
-    : config_values_(dest_values),
-      scope_(scope),
-      function_token_(function_token),
-      input_dir_(input_dir),
-      err_(err) {
-}
-
-ConfigValuesGenerator::~ConfigValuesGenerator() {
-}
-
-void ConfigValuesGenerator::Run() {
-  FillDefines();
-  FillIncludes();
-  FillCflags();
-  FillCflags_C();
-  FillCflags_CC();
-  FillLdflags();
-}
-
-void ConfigValuesGenerator::FillDefines() {
-  GetStringList(scope_, "defines", config_values_,
-                &ConfigValues::swap_in_defines, err_);
-}
-
-void ConfigValuesGenerator::FillIncludes() {
-  const Value* value = scope_->GetValue("includes");
-  if (!value)
-    return;  // No value, empty input and succeed.
-
-  std::vector<SourceDir> includes;
-  if (!ExtractListOfRelativeDirs(*value, input_dir_, &includes, err_))
-    return;
-  config_values_->swap_in_includes(&includes);
-}
-
-void ConfigValuesGenerator::FillCflags() {
-  GetStringList(scope_, "cflags", config_values_,
-                &ConfigValues::swap_in_cflags, err_);
-}
-
-void ConfigValuesGenerator::FillCflags_C() {
-  GetStringList(scope_, "cflags_c", config_values_,
-                &ConfigValues::swap_in_cflags_c, err_);
-}
-
-void ConfigValuesGenerator::FillCflags_CC() {
-  GetStringList(scope_, "cflags_cc", config_values_,
-                &ConfigValues::swap_in_cflags_cc, err_);
-}
-
-void ConfigValuesGenerator::FillLdflags() {
-  GetStringList(scope_, "ldflags", config_values_,
-                &ConfigValues::swap_in_ldflags, err_);
-}
diff --git a/tools/gn/config_values_generator.h b/tools/gn/config_values_generator.h
deleted file mode 100644
index 79d90678dbb8..000000000000
--- a/tools/gn/config_values_generator.h
+++ /dev/null
@@ -1,48 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_CONFIG_VALUES_GENERATOR_H_
-#define TOOLS_GN_CONFIG_VALUES_GENERATOR_H_
-
-#include <string>
-#include <vector>
-
-#include "base/basictypes.h"
-#include "tools/gn/source_dir.h"
-
-class ConfigValues;
-class Err;
-class Scope;
-class Token;
-
-class ConfigValuesGenerator {
- public:
-  ConfigValuesGenerator(ConfigValues* dest_values,
-                        const Scope* scope,
-                        const Token& function_token,
-                        const SourceDir& input_dir,
-                        Err* err);
-  ~ConfigValuesGenerator();
-
-  // Sets the error passed to the constructor on failure.
-  void Run();
-
- private:
-  void FillDefines();
-  void FillIncludes();
-  void FillCflags();
-  void FillCflags_C();
-  void FillCflags_CC();
-  void FillLdflags();
-
-  ConfigValues* config_values_;
-  const Scope* scope_;
-  const Token& function_token_;
-  const SourceDir input_dir_;
-  Err* err_;
-
-  DISALLOW_COPY_AND_ASSIGN(ConfigValuesGenerator);
-};
-
-#endif  // TOOLS_GN_CONFIG_VALUES_GENERATOR_H_
diff --git a/tools/gn/err.cc b/tools/gn/err.cc
deleted file mode 100644
index 068ea6ddce44..000000000000
--- a/tools/gn/err.cc
+++ /dev/null
@@ -1,196 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/err.h"
-
-#include "base/strings/string_number_conversions.h"
-#include "base/strings/string_util.h"
-#include "tools/gn/filesystem_utils.h"
-#include "tools/gn/input_file.h"
-#include "tools/gn/parse_tree.h"
-#include "tools/gn/standard_out.h"
-#include "tools/gn/tokenizer.h"
-#include "tools/gn/value.h"
-
-namespace {
-
-std::string GetNthLine(const base::StringPiece& data, int n) {
-  size_t line_off = Tokenizer::ByteOffsetOfNthLine(data, n);
-  size_t end = line_off + 1;
-  while (end < data.size() && !Tokenizer::IsNewline(data, end))
-    end++;
-  return data.substr(line_off, end - line_off).as_string();
-}
-
-void FillRangeOnLine(const LocationRange& range, int line_number,
-                     std::string* line) {
-  // Only bother if the range's begin or end overlaps the line. If the entire
-  // line is highlighted as a result of this range, it's not very helpful.
-  if (range.begin().line_number() != line_number &&
-      range.end().line_number() != line_number)
-    return;
-
-  // Watch out, the char offsets in the location are 1-based, so we have to
-  // subtract 1.
-  int begin_char;
-  if (range.begin().line_number() < line_number)
-    begin_char = 0;
-  else
-    begin_char = range.begin().char_offset() - 1;
-
-  int end_char;
-  if (range.end().line_number() > line_number)
-    end_char = line->size();  // Ending is non-inclusive.
-  else
-    end_char = range.end().char_offset() - 1;
-
-  CHECK(end_char >= begin_char);
-  CHECK(begin_char >= 0 && begin_char <= static_cast<int>(line->size()));
-  CHECK(end_char >= 0 && end_char <= static_cast<int>(line->size()));
-  for (int i = begin_char; i < end_char; i++)
-    line->at(i) = '-';
-}
-
-// The line length is used to clip the maximum length of the markers we'll
-// make if the error spans more than one line (like unterminated literals).
-void OutputHighlighedPosition(const Location& location,
-                              const Err::RangeList& ranges,
-                              size_t line_length) {
-  // Make a buffer of the line in spaces.
-  std::string highlight;
-  highlight.resize(line_length);
-  for (size_t i = 0; i < line_length; i++)
-    highlight[i] = ' ';
-
-  // Highlight all the ranges on the line.
-  for (size_t i = 0; i < ranges.size(); i++)
-    FillRangeOnLine(ranges[i], location.line_number(), &highlight);
-
-  // Allow the marker to be one past the end of the line for marking the end.
-  highlight.push_back(' ');
-  CHECK(location.char_offset() - 1 >= 0 &&
-        location.char_offset() - 1 < static_cast<int>(highlight.size()));
-  highlight[location.char_offset() - 1] = '^';
-
-  // Trim unused spaces from end of line.
-  while (!highlight.empty() && highlight[highlight.size() - 1] == ' ')
-    highlight.resize(highlight.size() - 1);
-
-  highlight += "\n";
-  OutputString(highlight, DECORATION_BLUE);
-}
-
-}  // namespace
-
-Err::Err() : has_error_(false) {
-}
-
-Err::Err(const Location& location,
-         const std::string& msg,
-         const std::string& help)
-    : has_error_(true),
-      location_(location),
-      message_(msg),
-      help_text_(help) {
-}
-
-Err::Err(const LocationRange& range,
-         const std::string& msg,
-         const std::string& help)
-    : has_error_(true),
-      location_(range.begin()),
-      message_(msg),
-      help_text_(help) {
-  ranges_.push_back(range);
-}
-
-Err::Err(const Token& token,
-         const std::string& msg,
-         const std::string& help)
-    : has_error_(true),
-      location_(token.location()),
-      message_(msg),
-      help_text_(help) {
-  ranges_.push_back(token.range());
-}
-
-Err::Err(const ParseNode* node,
-         const std::string& msg,
-         const std::string& help_text)
-    : has_error_(true),
-      message_(msg),
-      help_text_(help_text) {
-  // Node will be null in certain tests.
-  if (node) {
-    LocationRange range = node->GetRange();
-    location_ = range.begin();
-    ranges_.push_back(range);
-  }
-}
-
-Err::Err(const Value& value,
-         const std::string msg,
-         const std::string& help_text)
-    : has_error_(true),
-      message_(msg),
-      help_text_(help_text) {
-  if (value.origin()) {
-    LocationRange range = value.origin()->GetRange();
-    location_ = range.begin();
-    ranges_.push_back(range);
-  }
-}
-
-Err::~Err() {
-}
-
-void Err::PrintToStdout() const {
-  InternalPrintToStdout(false);
-}
-
-void Err::AppendSubErr(const Err& err) {
-  sub_errs_.push_back(err);
-}
-
-void Err::InternalPrintToStdout(bool is_sub_err) const {
-  DCHECK(has_error_);
-
-  if (!is_sub_err)
-    OutputString("ERROR ", DECORATION_RED);
-
-  // File name and location.
-  const InputFile* input_file = location_.file();
-  std::string loc_str;
-  if (input_file) {
-    std::string path8;
-    path8.assign(input_file->name().value());
-
-    if (is_sub_err)
-      loc_str = "See ";
-    else
-      loc_str = "at ";
-    loc_str += path8 + ": " +
-        base::IntToString(location_.line_number()) + ":" +
-        base::IntToString(location_.char_offset()) + ": ";
-  }
-  OutputString(loc_str + message_ + "\n");
-
-  // Quoted line.
-  if (input_file) {
-    std::string line = GetNthLine(input_file->contents(),
-                                  location_.line_number());
-    if (!ContainsOnlyWhitespaceASCII(line)) {
-      OutputString(line + "\n", DECORATION_BOLD);
-      OutputHighlighedPosition(location_, ranges_, line.size());
-    }
-  }
-
-  // Optional help text.
-  if (!help_text_.empty())
-    OutputString(help_text_ + "\n");
-
-  // Sub errors.
-  for (size_t i = 0; i < sub_errs_.size(); i++)
-    sub_errs_[i].InternalPrintToStdout(true);
-}
diff --git a/tools/gn/err.h b/tools/gn/err.h
deleted file mode 100644
index 3e077e9fb892..000000000000
--- a/tools/gn/err.h
+++ /dev/null
@@ -1,85 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_ERR_H_
-#define TOOLS_GN_ERR_H_
-
-#include <string>
-#include <vector>
-
-#include "tools/gn/location.h"
-#include "tools/gn/token.h"
-
-class ParseNode;
-class Value;
-
-// Result of doing some operation. Check has_error() to see if an error
-// occurred.
-//
-// An error has a location and a message. Below that, is some optional help
-// text to go with the annotation of the location.
-//
-// An error can also have sub-errors which are additionally printed out
-// below. They can provide additional context.
-class Err {
- public:
-  typedef std::vector<LocationRange> RangeList;
-
-  // Indicates no error.
-  Err();
-
-  // Error at a single point.
-  Err(const Location& location,
-      const std::string& msg,
-      const std::string& help = std::string());
-
-  // Error at a given range.
-  Err(const LocationRange& range,
-      const std::string& msg,
-      const std::string& help = std::string());
-
-  // Error at a given token.
-  Err(const Token& token,
-      const std::string& msg,
-      const std::string& help_text = std::string());
-
-  // Error at a given node.
-  Err(const ParseNode* node,
-      const std::string& msg,
-      const std::string& help_text = std::string());
-
-  // Error at a given value.
-  Err(const Value& value,
-      const std::string msg,
-      const std::string& help_text = std::string());
-
-  ~Err();
-
-  bool has_error() const { return has_error_; }
-  const Location& location() const { return location_; }
-  const std::string& message() const { return message_; }
-  const std::string& help_text() const { return help_text_; }
-
-  void AppendRange(const LocationRange& range) { ranges_.push_back(range); }
-  const RangeList& ranges() const { return ranges_; }
-
-  void AppendSubErr(const Err& err);
-
-  void PrintToStdout() const;
-
- private:
-  void InternalPrintToStdout(bool is_sub_err) const;
-
-  bool has_error_;
-  Location location_;
-
-  std::vector<LocationRange> ranges_;
-
-  std::string message_;
-  std::string help_text_;
-
-  std::vector<Err> sub_errs_;
-};
-
-#endif  // TOOLS_GN_ERR_H_
diff --git a/tools/gn/escape.cc b/tools/gn/escape.cc
deleted file mode 100644
index 5fc7b6f6a837..000000000000
--- a/tools/gn/escape.cc
+++ /dev/null
@@ -1,77 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/escape.h"
-
-#include "base/containers/stack_container.h"
-
-namespace {
-
-template<typename DestString>
-void EscapeStringToString(const base::StringPiece& str,
-                          const EscapeOptions& options,
-                          DestString* dest) {
-  bool used_quotes = false;
-
-  for (size_t i = 0; i < str.size(); i++) {
-    if (str[i] == '$' && options.mode == ESCAPE_NINJA) {
-      // Escape dollars signs since ninja treats these specially.
-      dest->push_back('$');
-      dest->push_back('$');
-    } else if (str[i] == '"' && options.mode == ESCAPE_SHELL) {
-      // Escape quotes with backslashes for the command-line (Ninja doesn't
-      // care).
-      dest->push_back('\\');
-      dest->push_back('"');
-    } else if (str[i] == ' ') {
-      if (options.mode == ESCAPE_NINJA) {
-        // For ninja just escape spaces with $.
-        dest->push_back('$');
-      } else if (options.mode == ESCAPE_SHELL && !options.inhibit_quoting) {
-        // For the shell, quote the whole string.
-        if (!used_quotes) {
-          used_quotes = true;
-          dest->insert(dest->begin(), '"');
-        }
-      }
-      dest->push_back(' ');
-#if defined(OS_WIN)
-    } else if (str[i] == '/' && options.convert_slashes) {
-      // Convert slashes on Windows if requested.
-      dest->push_back('\\');
-#else
-    } else if (str[i] == '\\' && options.mode == ESCAPE_SHELL) {
-      // For non-Windows shell, escape backslashes.
-      dest->push_back('\\');
-      dest->push_back('\\');
-#endif
-    } else {
-      dest->push_back(str[i]);
-    }
-  }
-
-  if (used_quotes)
-    dest->push_back('"');
-}
-
-}  // namespace
-
-std::string EscapeString(const base::StringPiece& str,
-                         const EscapeOptions& options) {
-  std::string result;
-  result.reserve(str.size() + 4);  // Guess we'll add a couple of extra chars.
-  EscapeStringToString(str, options, &result);
-  return result;
-}
-
-void EscapeStringToStream(std::ostream& out,
-                          const base::StringPiece& str,
-                          const EscapeOptions& options) {
-  // Escape to a stack buffer and then write out to the stream.
-  base::StackVector<char, 256> result;
-  result->reserve(str.size() + 4);  // Guess we'll add a couple of extra chars.
-  EscapeStringToString(str, options, &result.container());
-  if (!result->empty())
-    out.write(result->data(), result->size());
-}
diff --git a/tools/gn/escape.h b/tools/gn/escape.h
deleted file mode 100644
index 17911613b200..000000000000
--- a/tools/gn/escape.h
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_ESCAPE_H_
-#define TOOLS_GN_ESCAPE_H_
-
-#include <iosfwd>
-
-#include "base/strings/string_piece.h"
-
-// TODO(brettw) we may need to make this a bitfield. If we want to write a
-// shell command in a ninja file, we need the shell characters to be escaped,
-// and THEN the ninja characters. Or maybe we require the caller to do two
-// passes.
-enum EscapingMode {
-  ESCAPE_NONE,   // No escaping.
-  ESCAPE_NINJA,  // Ninja string escaping.
-  ESCAPE_SHELL,  // Shell string escaping.
-};
-
-struct EscapeOptions {
-  EscapeOptions()
-      : mode(ESCAPE_NONE),
-        convert_slashes(false),
-        inhibit_quoting(false) {
-  }
-
-  EscapingMode mode;
-
-  // When set, converts forward-slashes to system-specific path separators.
-  bool convert_slashes;
-
-  // When the escaping mode is ESCAPE_SHELL, the escaper will normally put
-  // quotes around things with spaces. If this value is set to true, we'll
-  // disable the quoting feature and just add the spaces.
-  //
-  // This mode is for when quoting is done at some higher-level. Defaults to
-  // false.
-  bool inhibit_quoting;
-};
-
-// Escapes the given input, returnining the result.
-std::string EscapeString(const base::StringPiece& str,
-                         const EscapeOptions& options);
-
-// Same as EscapeString but writes the results to the given stream, saving a
-// copy.
-void EscapeStringToStream(std::ostream& out,
-                          const base::StringPiece& str,
-                          const EscapeOptions& options);
-
-#endif  // TOOLS_GN_ESCAPE_H_
diff --git a/tools/gn/escape_unittest.cc b/tools/gn/escape_unittest.cc
deleted file mode 100644
index a7c19b3245e9..000000000000
--- a/tools/gn/escape_unittest.cc
+++ /dev/null
@@ -1,4 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
diff --git a/tools/gn/file_template.cc b/tools/gn/file_template.cc
deleted file mode 100644
index 8b5d09f24006..000000000000
--- a/tools/gn/file_template.cc
+++ /dev/null
@@ -1,125 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/file_template.h"
-
-#include "tools/gn/filesystem_utils.h"
-
-const char FileTemplate::kSource[] = "{{source}}";
-const char FileTemplate::kSourceNamePart[] = "{{source_name_part}}";
-
-FileTemplate::FileTemplate(const Value& t, Err* err) {
-  ParseInput(t, err);
-}
-
-FileTemplate::FileTemplate(const std::vector<std::string>& t) {
-  for (size_t i = 0; i < t.size(); i++)
-    ParseOneTemplateString(t[i]);
-}
-
-FileTemplate::~FileTemplate() {
-}
-
-void FileTemplate::Apply(const Value& sources,
-                         const ParseNode* origin,
-                         std::vector<Value>* dest,
-                         Err* err) const {
-  if (!sources.VerifyTypeIs(Value::LIST, err))
-    return;
-  dest->reserve(sources.list_value().size() * templates_.container().size());
-
-  // Temporary holding place, allocate outside to re-use- buffer.
-  std::vector<std::string> string_output;
-
-  const std::vector<Value>& sources_list = sources.list_value();
-  for (size_t i = 0; i < sources_list.size(); i++) {
-    if (!sources_list[i].VerifyTypeIs(Value::STRING, err))
-      return;
-
-    ApplyString(sources_list[i].string_value(), &string_output);
-    for (size_t out_i = 0; out_i < string_output.size(); out_i++)
-      dest->push_back(Value(origin, string_output[i]));
-  }
-}
-
-void FileTemplate::ApplyString(const std::string& str,
-                               std::vector<std::string>* output) const {
-  // Compute all substitutions needed so we can just do substitutions below.
-  // We skip the LITERAL one since that varies each time.
-  std::string subst[Subrange::NUM_TYPES];
-  if (types_required_[Subrange::SOURCE])
-    subst[Subrange::SOURCE] = str;
-  if (types_required_[Subrange::NAME_PART])
-    subst[Subrange::NAME_PART] = FindFilenameNoExtension(&str).as_string();
-
-  output->resize(templates_.container().size());
-  for (size_t template_i = 0;
-       template_i < templates_.container().size(); template_i++) {
-    const Template& t = templates_[template_i];
-    (*output)[template_i].clear();
-    for (size_t subrange_i = 0; subrange_i < t.container().size();
-         subrange_i++) {
-      if (t[subrange_i].type == Subrange::LITERAL)
-        (*output)[template_i].append(t[subrange_i].literal);
-      else
-        (*output)[template_i].append(subst[t[subrange_i].type]);
-    }
-  }
-}
-
-void FileTemplate::ParseInput(const Value& value, Err* err) {
-  switch (value.type()) {
-    case Value::STRING:
-      ParseOneTemplateString(value.string_value());
-      break;
-    case Value::LIST:
-      for (size_t i = 0; i < value.list_value().size(); i++) {
-        if (!value.list_value()[i].VerifyTypeIs(Value::STRING, err))
-          return;
-        ParseOneTemplateString(value.list_value()[i].string_value());
-      }
-      break;
-    default:
-      *err = Err(value, "File template must be a string or list.",
-                 "A sarcastic comment about your skills goes here.");
-  }
-}
-
-void FileTemplate::ParseOneTemplateString(const std::string& str) {
-  templates_.container().resize(templates_.container().size() + 1);
-  Template& t = templates_[templates_.container().size() - 1];
-
-  size_t cur = 0;
-  while (true) {
-    size_t next = str.find("{{", cur);
-
-    // Pick up everything from the previous spot to here as a literal.
-    if (next == std::string::npos) {
-      if (cur != str.size())
-        t.container().push_back(Subrange(Subrange::LITERAL, str.substr(cur)));
-      break;
-    } else if (next > cur) {
-      t.container().push_back(
-          Subrange(Subrange::LITERAL, str.substr(cur, next - cur)));
-    }
-
-    // Decode the template param.
-    if (str.compare(next, arraysize(kSource) - 1, kSource) == 0) {
-      t.container().push_back(Subrange(Subrange::SOURCE));
-      types_required_[Subrange::SOURCE] = true;
-      cur = next + arraysize(kSource) - 1;
-    } else if (str.compare(next, arraysize(kSourceNamePart) - 1,
-                           kSourceNamePart) == 0) {
-      t.container().push_back(Subrange(Subrange::NAME_PART));
-      types_required_[Subrange::NAME_PART] = true;
-      cur = next + arraysize(kSourceNamePart) - 1;
-    } else {
-      // If it's not a match, treat it like a one-char literal (this will be
-      // rare, so it's not worth the bother to add to the previous literal) so
-      // we can keep going.
-      t.container().push_back(Subrange(Subrange::LITERAL, "{"));
-      cur = next + 1;
-    }
-  }
-}
diff --git a/tools/gn/file_template.h b/tools/gn/file_template.h
deleted file mode 100644
index 25d22517dc61..000000000000
--- a/tools/gn/file_template.h
+++ /dev/null
@@ -1,74 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_FILE_TEMPLATE_H_
-#define TOOLS_GN_FILE_TEMPLATE_H_
-
-#include "base/basictypes.h"
-#include "base/containers/stack_container.h"
-#include "tools/gn/err.h"
-#include "tools/gn/value.h"
-
-class ParseNode;
-
-class FileTemplate {
- public:
-  struct Subrange {
-    enum Type {
-      LITERAL = 0,
-      SOURCE,
-      NAME_PART,
-      NUM_TYPES  // Must be last
-    };
-    Subrange(Type t, const std::string& l = std::string())
-        : type(t),
-          literal(l) {
-    }
-
-    Type type;
-
-    // When type_ == LITERAL, this specifies the literal.
-    std::string literal;
-  };
-
-  // Constructs a template from the given value. On error, the err will be
-  // set. In this case you should not use this object.
-  FileTemplate(const Value& t, Err* err);
-  FileTemplate(const std::vector<std::string>& t);
-  ~FileTemplate();
-
-  // Applies this template to the given list of sources, appending all
-  // results to the given dest list. The sources must be a list for the
-  // one that takes a value as an input, otherwise the given error will be set.
-  void Apply(const Value& sources,
-             const ParseNode* origin,
-             std::vector<Value>* dest,
-             Err* err) const;
-  void ApplyString(const std::string& input,
-                   std::vector<std::string>* output) const;
-
-  // Known template types.
-  static const char kSource[];
-  static const char kSourceNamePart[];
-
- private:
-  typedef base::StackVector<Subrange, 8> Template;
-  typedef base::StackVector<Template, 8> TemplateVector;
-
-  void ParseInput(const Value& value, Err* err);
-
-  // Parses a template string and adds it to the templates_ list.
-  void ParseOneTemplateString(const std::string& str);
-
-  TemplateVector templates_;
-
-  // The corresponding value is set to true if the given subrange type is
-  // required. This allows us to precompute these types whem applying them
-  // to a given source file.
-  bool types_required_[Subrange::NUM_TYPES];
-
-  DISALLOW_COPY_AND_ASSIGN(FileTemplate);
-};
-
-#endif  // TOOLS_GN_FILE_TEMPLATE_H_
diff --git a/tools/gn/file_template_unittest.cc b/tools/gn/file_template_unittest.cc
deleted file mode 100644
index 47c84f0ae529..000000000000
--- a/tools/gn/file_template_unittest.cc
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "testing/gtest/include/gtest/gtest.h"
-#include "tools/gn/file_template.h"
-
-TEST(FileTemplate, Static) {
-  std::vector<std::string> templates;
-  templates.push_back("something_static");
-  FileTemplate t(templates);
-
-  std::vector<std::string> result;
-  t.ApplyString("", &result);
-  ASSERT_EQ(1u, result.size());
-  EXPECT_EQ("something_static", result[0]);
-
-  t.ApplyString("lalala", &result);
-  ASSERT_EQ(1u, result.size());
-  EXPECT_EQ("something_static", result[0]);
-}
-
-TEST(FileTemplate, Typical) {
-  std::vector<std::string> templates;
-  templates.push_back("foo/{{source_name_part}}.cc");
-  templates.push_back("foo/{{source_name_part}}.h");
-  FileTemplate t(templates);
-
-  std::vector<std::string> result;
-  t.ApplyString("sources/ha.idl", &result);
-  ASSERT_EQ(2u, result.size());
-  EXPECT_EQ("foo/ha.cc", result[0]);
-  EXPECT_EQ("foo/ha.h", result[1]);
-}
-
-TEST(FileTemplate, Weird) {
-  std::vector<std::string> templates;
-  templates.push_back("{{{source}}{{source}}{{");
-  FileTemplate t(templates);
-
-  std::vector<std::string> result;
-  t.ApplyString("foo/lalala.c", &result);
-  ASSERT_EQ(1u, result.size());
-  EXPECT_EQ("{foo/lalala.cfoo/lalala.c{{", result[0]);
-}
diff --git a/tools/gn/filesystem_utils.cc b/tools/gn/filesystem_utils.cc
deleted file mode 100644
index 625a358a791e..000000000000
--- a/tools/gn/filesystem_utils.cc
+++ /dev/null
@@ -1,350 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/filesystem_utils.h"
-
-#include "base/logging.h"
-#include "base/strings/utf_string_conversions.h"
-#include "build/build_config.h"
-#include "tools/gn/location.h"
-#include "tools/gn/source_dir.h"
-
-namespace {
-
-enum DotDisposition {
-  // The given dot is just part of a filename and is not special.
-  NOT_A_DIRECTORY,
-
-  // The given dot is the current directory.
-  DIRECTORY_CUR,
-
-  // The given dot is the first of a double dot that should take us up one.
-  DIRECTORY_UP
-};
-
-// When we find a dot, this function is called with the character following
-// that dot to see what it is. The return value indicates what type this dot is
-// (see above). This code handles the case where the dot is at the end of the
-// input.
-//
-// |*consumed_len| will contain the number of characters in the input that
-// express what we found.
-DotDisposition ClassifyAfterDot(const std::string& path,
-                                size_t after_dot,
-                                size_t* consumed_len) {
-  if (after_dot == path.size()) {
-    // Single dot at the end.
-    *consumed_len = 1;
-    return DIRECTORY_CUR;
-  }
-  if (path[after_dot] == '/') {
-    // Single dot followed by a slash.
-    *consumed_len = 2;  // Consume the slash
-    return DIRECTORY_CUR;
-  }
-
-  if (path[after_dot] == '.') {
-    // Two dots.
-    if (after_dot + 1 == path.size()) {
-      // Double dot at the end.
-      *consumed_len = 2;
-      return DIRECTORY_UP;
-    }
-    if (path[after_dot + 1] == '/') {
-      // Double dot folowed by a slash.
-      *consumed_len = 3;
-      return DIRECTORY_UP;
-    }
-  }
-
-  // The dots are followed by something else, not a directory.
-  *consumed_len = 1;
-  return NOT_A_DIRECTORY;
-}
-
-}  // namesapce
-
-SourceFileType GetSourceFileType(const SourceFile& file,
-                                 Settings::TargetOS os) {
-  base::StringPiece extension = FindExtension(&file.value());
-  if (extension == "cc" || extension == "cpp" || extension == "cxx")
-    return SOURCE_CC;
-  if (extension == "h")
-    return SOURCE_H;
-  if (extension == "c")
-    return SOURCE_C;
-
-  switch (os) {
-    case Settings::MAC:
-      if (extension == "m")
-        return SOURCE_M;
-      if (extension == "mm")
-        return SOURCE_MM;
-      break;
-
-    case Settings::WIN:
-      if (extension == "rc")
-        return SOURCE_RC;
-      break;
-
-    default:
-      break;
-  }
-
-  // TODO(brettw) asm files.
-  // TODO(brettw) weird thing with .S on non-Windows platforms.
-  return SOURCE_UNKNOWN;
-}
-
-const char* GetExtensionForOutputType(Target::OutputType type,
-                                      Settings::TargetOS os) {
-  switch (os) {
-    case Settings::WIN:
-      switch (type) {
-        case Target::NONE:
-          NOTREACHED();
-          return "";
-        case Target::EXECUTABLE:
-          return "exe";
-        case Target::SHARED_LIBRARY:
-          return "dll.lib";  // Extension of import library.
-        case Target::STATIC_LIBRARY:
-          return "lib";
-        case Target::LOADABLE_MODULE:
-          return "dll";  // TODO(brettw) what's this?
-        default:
-          NOTREACHED();
-      }
-      break;
-
-    default:
-      NOTREACHED();
-  }
-  return "";
-}
-
-std::string FilePathToUTF8(const base::FilePath& path) {
-#if defined(OS_WIN)
-  return WideToUTF8(path.value());
-#else
-  return path.value();
-#endif
-}
-
-base::FilePath UTF8ToFilePath(const base::StringPiece& sp) {
-#if defined(OS_WIN)
-  return base::FilePath(UTF8ToWide(sp));
-#else
-  return base::FilePath(sp.as_string());
-#endif
-}
-
-size_t FindExtensionOffset(const std::string& path) {
-  for (int i = static_cast<int>(path.size()); i >= 0; i--) {
-    if (path[i] == '/')
-      break;
-    if (path[i] == '.')
-      return i + 1;
-  }
-  return std::string::npos;
-}
-
-base::StringPiece FindExtension(const std::string* path) {
-  size_t extension_offset = FindExtensionOffset(*path);
-  if (extension_offset == std::string::npos)
-    return base::StringPiece();
-  return base::StringPiece(&path->data()[extension_offset],
-                           path->size() - extension_offset);
-}
-
-size_t FindFilenameOffset(const std::string& path) {
-  for (int i = static_cast<int>(path.size()) - 1; i >= 0; i--) {
-    if (path[i] == '/')
-      return i + 1;
-  }
-  return 0;  // No filename found means everything was the filename.
-}
-
-base::StringPiece FindFilename(const std::string* path) {
-  size_t filename_offset = FindFilenameOffset(*path);
-  if (filename_offset == 0)
-    return base::StringPiece(*path);  // Everything is the file name.
-  return base::StringPiece(&(*path).data()[filename_offset],
-                           path->size() - filename_offset);
-}
-
-base::StringPiece FindFilenameNoExtension(const std::string* path) {
-  if (path->empty())
-    return base::StringPiece();
-  size_t filename_offset = FindFilenameOffset(*path);
-  size_t extension_offset = FindExtensionOffset(*path);
-
-  size_t name_len;
-  if (extension_offset == std::string::npos)
-    name_len = path->size() - filename_offset;
-  else
-    name_len = extension_offset - filename_offset - 1;
-
-  return base::StringPiece(&(*path).data()[filename_offset], name_len);
-}
-
-void RemoveFilename(std::string* path) {
-  path->resize(FindFilenameOffset(*path));
-}
-
-bool EndsWithSlash(const std::string& s) {
-  return !s.empty() && s[s.size() - 1] == '/';
-}
-
-base::StringPiece FindDir(const std::string* path) {
-  size_t filename_offset = FindFilenameOffset(*path);
-  if (filename_offset == 0u)
-    return base::StringPiece();
-  return base::StringPiece(path->data(), filename_offset);
-}
-
-bool EnsureStringIsInOutputDir(const SourceDir& dir,
-                               const std::string& str,
-                               const Value& originating,
-                               Err* err) {
-  // The last char of the dir will be a slash. We don't care if the input ends
-  // in a slash or not, so just compare up until there.
-  //
-  // This check will be wrong for all proper prefixes "e.g. "/output" will
-  // match "/out" but we don't really care since this is just a sanity check.
-  const std::string& dir_str = dir.value();
-  if (str.compare(0, dir_str.length() - 1, dir_str, 0, dir_str.length() - 1)
-      != 0) {
-    *err = Err(originating, "File not inside output directory.",
-        "The given file should be in the output directory. Normally you would "
-        "specify\n\"$target_output_dir/foo\" or "
-        "\"$target_gen_dir/foo\". I interpreted this as\n\""
-        + str + "\".");
-    return false;
-  }
-  return true;
-}
-
-std::string InvertDir(const SourceDir& path) {
-  const std::string value = path.value();
-  if (value.empty())
-    return std::string();
-
-  DCHECK(value[0] == '/');
-  size_t begin_index = 1;
-
-  // If the input begins with two slashes, skip over both (this is a
-  // source-relative dir).
-  if (value.size() > 1 && value[1] == '/')
-    begin_index = 2;
-
-  std::string ret;
-  for (size_t i = begin_index; i < value.size(); i++) {
-    if (value[i] == '/')
-      ret.append("../");
-  }
-  return ret;
-}
-
-void NormalizePath(std::string* path) {
-  char* pathbuf = path->empty() ? NULL : &(*path)[0];
-
-  // top_index is the first character we can modify in the path. Anything
-  // before this indicates where the path is relative to.
-  size_t top_index = 0;
-  bool is_relative = true;
-  if (!path->empty() && pathbuf[0] == '/') {
-    is_relative = false;
-
-    if (path->size() > 1 && pathbuf[1] == '/') {
-      // Two leading slashes, this is a path into the source dir.
-      top_index = 2;
-    } else {
-      // One leading slash, this is a system-absolute path.
-      top_index = 1;
-    }
-  }
-
-  size_t dest_i = top_index;
-  for (size_t src_i = top_index; src_i < path->size(); /* nothing */) {
-    if (pathbuf[src_i] == '.') {
-      if (src_i == 0 || pathbuf[src_i - 1] == '/') {
-        // Slash followed by a dot, see if it's something special.
-        size_t consumed_len;
-        switch (ClassifyAfterDot(*path, src_i + 1, &consumed_len)) {
-          case NOT_A_DIRECTORY:
-            // Copy the dot to the output, it means nothing special.
-            pathbuf[dest_i++] = pathbuf[src_i++];
-            break;
-          case DIRECTORY_CUR:
-            // Current directory, just skip the input.
-            src_i += consumed_len;
-            break;
-          case DIRECTORY_UP:
-            // Back up over previous directory component. If we're already
-            // at the top, preserve the "..".
-            if (dest_i > top_index) {
-              // The previous char was a slash, remove it.
-              dest_i--;
-            }
-
-            if (dest_i == top_index) {
-              if (is_relative) {
-                // We're already at the beginning of a relative input, copy the
-                // ".." and continue. We need the trailing slash if there was
-                // one before (otherwise we're at the end of the input).
-                pathbuf[dest_i++] = '.';
-                pathbuf[dest_i++] = '.';
-                if (consumed_len == 3)
-                  pathbuf[dest_i++] = '/';
-
-                // This also makes a new "root" that we can't delete by going
-                // up more levels.  Otherwise "../.." would collapse to
-                // nothing.
-                top_index = dest_i;
-              }
-              // Otherwise we're at the beginning of an absolute path. Don't
-              // allow ".." to go up another level and just eat it.
-            } else {
-              // Just find the previous slash or the beginning of input.
-              while (dest_i > 0 && pathbuf[dest_i - 1] != '/')
-                dest_i--;
-            }
-            src_i += consumed_len;
-        }
-      } else {
-        // Dot not preceeded by a slash, copy it literally.
-        pathbuf[dest_i++] = pathbuf[src_i++];
-      }
-    } else if (pathbuf[src_i] == '/') {
-      if (src_i > 0 && pathbuf[src_i - 1] == '/') {
-        // Two slashes in a row, skip over it.
-        src_i++;
-      } else {
-        // Just one slash, copy it.
-        pathbuf[dest_i++] = pathbuf[src_i++];
-      }
-    } else {
-      // Input nothing special, just copy it.
-      pathbuf[dest_i++] = pathbuf[src_i++];
-    }
-  }
-  path->resize(dest_i);
-}
-
-void ConvertPathToSystem(std::string* path) {
-#if defined(OS_WIN)
-  for (size_t i = 0; i < path->size(); i++) {
-    if ((*path)[i] == '/')
-      (*path)[i] = '\\';
-  }
-#endif
-}
-
-std::string PathToSystem(const std::string& path) {
-  std::string ret(path);
-  ConvertPathToSystem(&ret);
-  return ret;
-}
-
diff --git a/tools/gn/filesystem_utils.h b/tools/gn/filesystem_utils.h
deleted file mode 100644
index 19139f826de1..000000000000
--- a/tools/gn/filesystem_utils.h
+++ /dev/null
@@ -1,115 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_FILESYSTEM_UTILS_H_
-#define TOOLS_GN_FILESYSTEM_UTILS_H_
-
-#include <string>
-
-#include "base/files/file_path.h"
-#include "base/strings/string_piece.h"
-#include "tools/gn/settings.h"
-#include "tools/gn/target.h"
-
-class Err;
-class Location;
-class Value;
-
-enum SourceFileType {
-  SOURCE_UNKNOWN,
-  SOURCE_ASM,
-  SOURCE_C,
-  SOURCE_CC,
-  SOURCE_H,
-  SOURCE_M,
-  SOURCE_MM,
-  //SOURCE_S,  // TODO(brettw) what is this?
-  SOURCE_RC,
-};
-
-SourceFileType GetSourceFileType(const SourceFile& file,
-                                 Settings::TargetOS os);
-
-// Returns the extension, not including the dot, for the given file type on the
-// given system.
-//
-// Some targets make multiple files (like a .dll and an import library). This
-// function returns the name of the file other targets should depend on and
-// link to (so in this example, the import library).
-const char* GetExtensionForOutputType(Target::OutputType type,
-                                      Settings::TargetOS os);
-
-std::string FilePathToUTF8(const base::FilePath& path);
-base::FilePath UTF8ToFilePath(const base::StringPiece& sp);
-
-// Extensions -----------------------------------------------------------------
-
-// Returns the index of the extension (character after the last dot not after a
-// slash). Returns std::string::npos if not found. Returns path.size() if the
-// file ends with a dot.
-size_t FindExtensionOffset(const std::string& path);
-
-// Returns a string piece pointing into the input string identifying the
-// extension. Note that the input pointer must outlive the output.
-base::StringPiece FindExtension(const std::string* path);
-
-// Filename parts -------------------------------------------------------------
-
-// Returns the offset of the character following the last slash, or
-// 0 if no slash was found. Returns path.size() if the path ends with a slash.
-// Note that the input pointer must outlive the output.
-size_t FindFilenameOffset(const std::string& path);
-
-// Returns a string piece pointing into the input string identifying the
-// file name (following the last slash, including the extension). Note that the
-// input pointer must outlive the output.
-base::StringPiece FindFilename(const std::string* path);
-
-// Like FindFilename but does not include the extension.
-base::StringPiece FindFilenameNoExtension(const std::string* path);
-
-// Removes everything after the last slash. The last slash, if any, will be
-// preserved.
-void RemoveFilename(std::string* path);
-
-// Returns true if the given path ends with a slash.
-bool EndsWithSlash(const std::string& s);
-
-// Path parts -----------------------------------------------------------------
-
-// Returns a string piece pointing into the input string identifying the
-// directory name of the given path, including the last slash. Note that the
-// input pointer must outlive the output.
-base::StringPiece FindDir(const std::string* path);
-
-// Verifies that the given string references a file inside of the given
-// directory. This is pretty stupid and doesn't handle "." and "..", etc.,
-// it is designed for a sanity check to keep people from writing output files
-// to the source directory accidentally.
-//
-// The originating value will be blamed in the error.
-//
-// If the file isn't in the dir, returns false and sets the error. Otherwise
-// returns true and leaves the error untouched.
-bool EnsureStringIsInOutputDir(const SourceDir& dir,
-                               const std::string& str,
-                               const Value& originating,
-                               Err* err);
-
-// ----------------------------------------------------------------------------
-
-// Converts a directory to its inverse (e.g. "/foo/bar/" -> "../../").
-// This will be the empty string for the root directories ("/" and "//"), and
-// in all other cases, this is guaranteed to end in a slash.
-std::string InvertDir(const SourceDir& dir);
-
-// Collapses "." and sequential "/"s and evaluates "..".
-void NormalizePath(std::string* path);
-
-// Converts slashes to backslashes for Windows. Keeps the string unchanged
-// for other systems.
-void ConvertPathToSystem(std::string* path);
-std::string PathToSystem(const std::string& path);
-
-#endif  // TOOLS_GN_FILESYSTEM_UTILS_H_
diff --git a/tools/gn/filesystem_utils_unittest.cc b/tools/gn/filesystem_utils_unittest.cc
deleted file mode 100644
index 75bf7cdb3a31..000000000000
--- a/tools/gn/filesystem_utils_unittest.cc
+++ /dev/null
@@ -1,146 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "base/strings/string_util.h"
-#include "base/strings/utf_string_conversions.h"
-#include "build/build_config.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "tools/gn/filesystem_utils.h"
-
-TEST(FilesystemUtils, FileExtensionOffset) {
-  EXPECT_EQ(std::string::npos, FindExtensionOffset(""));
-  EXPECT_EQ(std::string::npos, FindExtensionOffset("foo/bar/baz"));
-  EXPECT_EQ(4u, FindExtensionOffset("foo."));
-  EXPECT_EQ(4u, FindExtensionOffset("f.o.bar"));
-  EXPECT_EQ(std::string::npos, FindExtensionOffset("foo.bar/"));
-  EXPECT_EQ(std::string::npos, FindExtensionOffset("foo.bar/baz"));
-}
-
-TEST(FilesystemUtils, FindExtension) {
-  std::string input;
-  EXPECT_EQ("", FindExtension(&input).as_string());
-  input = "foo/bar/baz";
-  EXPECT_EQ("", FindExtension(&input).as_string());
-  input = "foo.";
-  EXPECT_EQ("", FindExtension(&input).as_string());
-  input = "f.o.bar";
-  EXPECT_EQ("bar", FindExtension(&input).as_string());
-  input = "foo.bar/";
-  EXPECT_EQ("", FindExtension(&input).as_string());
-  input = "foo.bar/baz";
-  EXPECT_EQ("", FindExtension(&input).as_string());
-}
-
-TEST(FilesystemUtils, FindFilenameOffset) {
-  EXPECT_EQ(0u, FindFilenameOffset(""));
-  EXPECT_EQ(0u, FindFilenameOffset("foo"));
-  EXPECT_EQ(4u, FindFilenameOffset("foo/"));
-  EXPECT_EQ(4u, FindFilenameOffset("foo/bar"));
-}
-
-TEST(FilesystemUtils, RemoveFilename) {
-  std::string s;
-
-  RemoveFilename(&s);
-  EXPECT_STREQ("", s.c_str());
-
-  s = "foo";
-  RemoveFilename(&s);
-  EXPECT_STREQ("", s.c_str());
-
-  s = "/";
-  RemoveFilename(&s);
-  EXPECT_STREQ("/", s.c_str());
-
-  s = "foo/bar";
-  RemoveFilename(&s);
-  EXPECT_STREQ("foo/", s.c_str());
-
-  s = "foo/bar/baz.cc";
-  RemoveFilename(&s);
-  EXPECT_STREQ("foo/bar/", s.c_str());
-}
-
-TEST(FilesystemUtils, FindDir) {
-  std::string input;
-  EXPECT_EQ("", FindDir(&input));
-  input = "/";
-  EXPECT_EQ("/", FindDir(&input));
-  input = "foo/";
-  EXPECT_EQ("foo/", FindDir(&input));
-  input = "foo/bar/baz";
-  EXPECT_EQ("foo/bar/", FindDir(&input));
-}
-
-TEST(FilesystemUtils, InvertDir) {
-  EXPECT_TRUE(InvertDir(SourceDir()) == "");
-  EXPECT_TRUE(InvertDir(SourceDir("/")) == "");
-  EXPECT_TRUE(InvertDir(SourceDir("//")) == "");
-
-  EXPECT_TRUE(InvertDir(SourceDir("//foo/bar")) == "../../");
-  EXPECT_TRUE(InvertDir(SourceDir("/foo/bar/")) == "../../");
-}
-
-TEST(FilesystemUtils, NormalizePath) {
-  std::string input;
-
-  NormalizePath(&input);
-  EXPECT_EQ("", input);
-
-  input = "foo/bar.txt";
-  NormalizePath(&input);
-  EXPECT_EQ("foo/bar.txt", input);
-
-  input = ".";
-  NormalizePath(&input);
-  EXPECT_EQ("", input);
-
-  input = "..";
-  NormalizePath(&input);
-  EXPECT_EQ("..", input);
-
-  input = "foo//bar";
-  NormalizePath(&input);
-  EXPECT_EQ("foo/bar", input);
-
-  input = "//foo";
-  NormalizePath(&input);
-  EXPECT_EQ("//foo", input);
-
-  input = "foo/..//bar";
-  NormalizePath(&input);
-  EXPECT_EQ("bar", input);
-
-  input = "foo/../../bar";
-  NormalizePath(&input);
-  EXPECT_EQ("../bar", input);
-
-  input = "/../foo";  // Don't go aboe the root dir.
-  NormalizePath(&input);
-  EXPECT_EQ("/foo", input);
-
-  input = "//../foo";  // Don't go aboe the root dir.
-  NormalizePath(&input);
-  EXPECT_EQ("//foo", input);
-
-  input = "../foo";
-  NormalizePath(&input);
-  EXPECT_EQ("../foo", input);
-
-  input = "..";
-  NormalizePath(&input);
-  EXPECT_EQ("..", input);
-
-  input = "./././.";
-  NormalizePath(&input);
-  EXPECT_EQ("", input);
-
-  input = "../../..";
-  NormalizePath(&input);
-  EXPECT_EQ("../../..", input);
-
-  input = "../";
-  NormalizePath(&input);
-  EXPECT_EQ("../", input);
-}
diff --git a/tools/gn/function_define_rule.cc b/tools/gn/function_define_rule.cc
deleted file mode 100644
index afbed9e6204e..000000000000
--- a/tools/gn/function_define_rule.cc
+++ /dev/null
@@ -1,37 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/functions.h"
-
-#include "tools/gn/parse_tree.h"
-#include "tools/gn/scope.h"
-#include "tools/gn/value.h"
-
-Value ExecuteDefineRule(Scope* scope,
-                        const FunctionCallNode* function,
-                        const std::vector<Value>& args,
-                        BlockNode* block,
-                        Err* err) {
-  // TODO(brettw) determine if the function is built-in and throw an error if
-  // it is.
-  if (args.size() != 1) {
-    *err = Err(function->function(),
-               "Need exactly one string arg to define_rule.");
-    return Value();
-  }
-  if (!args[0].VerifyTypeIs(Value::STRING, err))
-    return Value();
-  std::string rule_name = args[0].string_value();
-
-  const FunctionCallNode* existing_rule = scope->GetRule(rule_name);
-  if (existing_rule) {
-    *err = Err(function, "Duplicate rule definition.",
-               "A rule with this name was already defined.");
-    err->AppendSubErr(Err(existing_rule->function(), "Previous definition."));
-    return Value();
-  }
-
-  scope->AddRule(rule_name, function);
-  return Value();
-}
diff --git a/tools/gn/function_exec_script.cc b/tools/gn/function_exec_script.cc
deleted file mode 100644
index a950909e25cb..000000000000
--- a/tools/gn/function_exec_script.cc
+++ /dev/null
@@ -1,254 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "base/command_line.h"
-#include "base/file_util.h"
-#include "base/strings/string_number_conversions.h"
-#include "build/build_config.h"
-#include "tools/gn/err.h"
-#include "tools/gn/filesystem_utils.h"
-#include "tools/gn/functions.h"
-#include "tools/gn/input_conversion.h"
-#include "tools/gn/input_file.h"
-#include "tools/gn/parse_tree.h"
-#include "tools/gn/scheduler.h"
-#include "tools/gn/value.h"
-
-#if defined(OS_WIN)
-#include <windows.h>
-
-#include "base/win/scoped_handle.h"
-#include "base/win/scoped_process_information.h"
-#endif
-
-/*
-exec_script: Synchronously run a script and return the output.
-
-  exec_script(filename, arguments, input_conversion, [file_dependencies])
-
-  Runs the given script, returning the stdout of the script. The build
-  generation will fail if the script does not exist or returns a nonzero
-  exit code.
-
-Arguments:
-
-  filename:
-      File name of python script to execute, relative to the build file.
-
-  arguments:
-      A list of strings to be passed to the scripe as arguments.
-
-  input_conversion:
-      Controls how the file is read and parsed. See "help input_conversion".
-
-  dependencies:
-      (Optional) A list of files that this script reads or otherwise depends
-      on. These dependencies will be added to the build result such that if
-      any of them change, the build will be regenerated and the script will
-      be re-run.
-
-      The script itself will be an implicit dependency so you do not need to
-      list it.
-
-Example:
-
-  all_lines = exec_script("myscript.py", [some_input], "list lines",
-                          ["data_file.txt"])
-*/
-
-namespace {
-
-#if defined(OS_WIN)
-bool ExecProcess(const CommandLine& cmdline,
-                 const base::FilePath& startup_dir,
-                 std::string* std_out,
-                 std::string* std_err,
-                 int* exit_code) {
-  SECURITY_ATTRIBUTES sa_attr;
-  // Set the bInheritHandle flag so pipe handles are inherited.
-  sa_attr.nLength = sizeof(SECURITY_ATTRIBUTES);
-  sa_attr.bInheritHandle = TRUE;
-  sa_attr.lpSecurityDescriptor = NULL;
-
-  // Create the pipe for the child process's STDOUT.
-  HANDLE out_read = NULL;
-  HANDLE out_write = NULL;
-  if (!CreatePipe(&out_read, &out_write, &sa_attr, 0)) {
-    NOTREACHED() << "Failed to create pipe";
-    return false;
-  }
-  base::win::ScopedHandle scoped_out_read(out_read);
-  base::win::ScopedHandle scoped_out_write(out_write);
-
-  // Create the pipe for the child process's STDERR.
-  HANDLE err_read = NULL;
-  HANDLE err_write = NULL;
-  if (!CreatePipe(&err_read, &err_write, &sa_attr, 0)) {
-    NOTREACHED() << "Failed to create pipe";
-    return false;
-  }
-  base::win::ScopedHandle scoped_err_read(err_read);
-  base::win::ScopedHandle scoped_err_write(err_write);
-
-  // Ensure the read handle to the pipe for STDOUT/STDERR is not inherited.
-  if (!SetHandleInformation(out_read, HANDLE_FLAG_INHERIT, 0)) {
-    NOTREACHED() << "Failed to disabled pipe inheritance";
-    return false;
-  }
-  if (!SetHandleInformation(err_read, HANDLE_FLAG_INHERIT, 0)) {
-    NOTREACHED() << "Failed to disabled pipe inheritance";
-    return false;
-  }
-
-  base::FilePath::StringType cmdline_str(cmdline.GetCommandLineString());
-
-  base::win::ScopedProcessInformation proc_info;
-  STARTUPINFO start_info = { 0 };
-
-  start_info.cb = sizeof(STARTUPINFO);
-  start_info.hStdOutput = out_write;
-  // Keep the normal stdin.
-  start_info.hStdInput = GetStdHandle(STD_INPUT_HANDLE);
-  // FIXME(brettw) set stderr here when we actually read it below.
-  //start_info.hStdError = err_write;
-  start_info.hStdError = GetStdHandle(STD_ERROR_HANDLE);
-  start_info.dwFlags |= STARTF_USESTDHANDLES;
-
-  // Create the child process.
-  if (!CreateProcess(NULL,
-                     &cmdline_str[0],
-                     NULL, NULL,
-                     TRUE,  // Handles are inherited.
-                     0, NULL,
-                     startup_dir.value().c_str(),
-                     &start_info, proc_info.Receive())) {
-    return false;
-  }
-
-  // Close our writing end of pipes now. Otherwise later read would not be able
-  // to detect end of child's output.
-  scoped_out_write.Close();
-  scoped_err_write.Close();
-
-  // Read output from the child process's pipe for STDOUT
-  const int kBufferSize = 1024;
-  char buffer[kBufferSize];
-
-  // FIXME(brettw) read from stderr here! This is complicated because we want
-  // to read both of them at the same time, probably need overlapped I/O.
-  // Also uncomment start_info code above.
-  for (;;) {
-    DWORD bytes_read = 0;
-    BOOL success = ReadFile(out_read, buffer, kBufferSize, &bytes_read, NULL);
-    if (!success || bytes_read == 0)
-      break;
-    std_out->append(buffer, bytes_read);
-  }
-
-  // Let's wait for the process to finish.
-  WaitForSingleObject(proc_info.process_handle(), INFINITE);
-
-  DWORD dw_exit_code;
-  GetExitCodeProcess(proc_info.process_handle(), &dw_exit_code);
-  *exit_code = static_cast<int>(dw_exit_code);
-
-  return true;
-}
-#else
-bool ExecProcess(const CommandLine& cmdline,
-                 const base::FilePath& startup_dir,
-                 std::string* std_out,
-                 std::string* std_err,
-                 int* exit_code) {
-  //NOTREACHED() << "Implement me.";
-  return false;
-}
-#endif
-
-}  // namespace
-
-Value ExecuteExecScript(Scope* scope,
-                        const FunctionCallNode* function,
-                        const std::vector<Value>& args,
-                        Err* err) {
-  if (args.size() != 3 && args.size() != 4) {
-    *err = Err(function->function(), "Wrong number of args to write_file",
-               "I expected three or four arguments.");
-    return Value();
-  }
-
-  const Settings* settings = scope->settings();
-  const BuildSettings* build_settings = settings->build_settings();
-  const SourceDir& cur_dir = SourceDirForFunctionCall(function);
-
-  // Find the python script to run.
-  if (!args[0].VerifyTypeIs(Value::STRING, err))
-    return Value();
-  SourceFile script_source =
-      cur_dir.ResolveRelativeFile(args[0].string_value());
-  base::FilePath script_path = build_settings->GetFullPath(script_source);
-  if (!build_settings->secondary_source_path().empty() &&
-      !base::PathExists(script_path)) {
-    // Fall back to secondary source root when the file doesn't exist.
-    script_path = build_settings->GetFullPathSecondary(script_source);
-  }
-
-  // Add all dependencies of this script, including the script itself, to the
-  // build deps.
-  g_scheduler->AddGenDependency(script_source);
-  if (args.size() == 4) {
-    const Value& deps_value = args[3];
-    if (!deps_value.VerifyTypeIs(Value::LIST, err))
-      return Value();
-
-    for (size_t i = 0; i < deps_value.list_value().size(); i++) {
-      if (!deps_value.list_value()[0].VerifyTypeIs(Value::STRING, err))
-        return Value();
-      g_scheduler->AddGenDependency(cur_dir.ResolveRelativeFile(
-          deps_value.list_value()[0].string_value()));
-    }
-  }
-
-  // Make the command line.
-  const base::FilePath& python_path = build_settings->python_path();
-  CommandLine cmdline(python_path);
-  cmdline.AppendArgPath(script_path);
-
-  const Value& script_args = args[1];
-  if (!script_args.VerifyTypeIs(Value::LIST, err))
-    return Value();
-  for (size_t i = 0; i < script_args.list_value().size(); i++) {
-    if (!script_args.list_value()[i].VerifyTypeIs(Value::STRING, err))
-      return Value();
-    cmdline.AppendArg(script_args.list_value()[i].string_value());
-  }
-
-  // Execute the process.
-  // TODO(brettw) set the environment block.
-  std::string output;
-  std::string stderr_output;  // TODO(brettw) not hooked up, see above.
-  int exit_code = 0;
-  if (!ExecProcess(cmdline, build_settings->GetFullPath(cur_dir),
-                   &output, &stderr_output, &exit_code)) {
-    *err = Err(function->function(), "Could not execute python.",
-        "I was trying to execute \"" + FilePathToUTF8(python_path) + "\".");
-    return Value();
-  }
-
-  // TODO(brettw) maybe we need stderr also for reasonable stack dumps.
-  if (exit_code != 0) {
-    std::string msg =
-        std::string("I was running \"") + FilePathToUTF8(script_path) + "\"\n"
-        "and it returned " + base::IntToString(exit_code);
-    if (!output.empty())
-      msg += " and printed out:\n\n" + output;
-    else
-      msg += ".";
-    *err = Err(function->function(), "Script returned non-zero exit code.",
-               msg);
-    return Value();
-  }
-
-  return ConvertInputToValue(output, function, args[2], err);
-}
diff --git a/tools/gn/function_process_file_template.cc b/tools/gn/function_process_file_template.cc
deleted file mode 100644
index 18e1425fba1a..000000000000
--- a/tools/gn/function_process_file_template.cc
+++ /dev/null
@@ -1,65 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/file_template.h"
-#include "tools/gn/functions.h"
-#include "tools/gn/parse_tree.h"
-
-/*
-process_file_template: Do template expansion over a list of files.
-
-  process_file_template(source_list, template)
-
-  process_file_template applies a template list to a source file list,
-  returning the result of applying each template to each source. This is
-  typically used for computing output file names from input files.
-
-Arguments:
-
-  The source_list is a list of file names.
-
-  The template can be a string or a list. If it is a list, multiple output
-  strings are generated for each input.
-
-  The following template substrings are used in the template arguments
-  and are replaced with the corresponding part of the input file name:
-
-    "{{source}}": The entire source name.
-
-    "{{source_name_part}}": The source name with no path or extension.
-
-Example:
-
-  sources = [
-    "foo.idl",
-    "bar.idl",
-  ]
-  myoutputs = process_file_template(
-      sources,
-      [ "$target_gen_dir/{{source_name_part}}.cc",
-        "$target_gen_dir/{{source_name_part}}.h" ])
-
- The result in this case will be:
-    [ "/out/Debug/foo.cc"
-      "/out/Debug/foo.h"
-      "/out/Debug/bar.cc"
-      "/out/Debug/bar.h" ]
-*/
-Value ExecuteProcessFileTemplate(Scope* scope,
-                                 const FunctionCallNode* function,
-                                 const std::vector<Value>& args,
-                                 Err* err) {
-  if (args.size() != 2) {
-    *err = Err(function->function(), "Expected two arguments");
-    return Value();
-  }
-
-  FileTemplate file_template(args[1], err);
-  if (err->has_error())
-    return Value();
-
-  Value ret(function, Value::LIST);
-  file_template.Apply(args[0], function, &ret.list_value(), err);
-  return ret;
-}
diff --git a/tools/gn/function_read_file.cc b/tools/gn/function_read_file.cc
deleted file mode 100644
index db981ad92eb3..000000000000
--- a/tools/gn/function_read_file.cc
+++ /dev/null
@@ -1,67 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "base/file_util.h"
-#include "tools/gn/err.h"
-#include "tools/gn/filesystem_utils.h"
-#include "tools/gn/functions.h"
-#include "tools/gn/input_conversion.h"
-#include "tools/gn/input_file.h"
-#include "tools/gn/scheduler.h"
-
-// TODO(brettw) consider removing this. I originally wrote it for making the
-// WebKit bindings but misundersood what was required, and didn't need to
-// use this. This seems to have a high potential for misuse.
-
-/*
-read_file: Read a file into a variable.
-
-  read_file(filename, how_to_read)
-
-  Whitespace will be trimmed from the end of the file. Throws an error if the
-  file can not be opened.
-
-Arguments:
-
-  filename:
-      Filename to read, relative to the build file.
-
-  input_conversion:
-      Controls how the file is read and parsed. See "help input_conversion".
-
-Example:
-
-  lines = read_file("foo.txt", "list lines")
-*/
-Value ExecuteReadFile(Scope* scope,
-                      const FunctionCallNode* function,
-                      const std::vector<Value>& args,
-                      Err* err) {
-  if (args.size() != 2) {
-    *err = Err(function->function(), "Wrong number of args to read_file",
-               "I expected two arguments.");
-    return Value();
-  }
-  if (!args[0].VerifyTypeIs(Value::STRING, err))
-    return Value();
-
-  // Compute the file name.
-  const SourceDir& cur_dir = SourceDirForFunctionCall(function);
-  SourceFile source_file = cur_dir.ResolveRelativeFile(args[0].string_value());
-  base::FilePath file_path =
-      scope->settings()->build_settings()->GetFullPath(source_file);
-
-  // Ensure that everything is recomputed if the read file changes.
-  g_scheduler->AddGenDependency(source_file);
-
-  // Read contents.
-  std::string file_contents;
-  if (!file_util::ReadFileToString(file_path, &file_contents)) {
-    *err = Err(args[0], "Could not read file.",
-               "I resolved this to \"" + FilePathToUTF8(file_path) + "\".");
-    return Value();
-  }
-
-  return ConvertInputToValue(file_contents, function, args[1], err);
-}
diff --git a/tools/gn/function_set_default_toolchain.cc b/tools/gn/function_set_default_toolchain.cc
deleted file mode 100644
index 4939ac84cee9..000000000000
--- a/tools/gn/function_set_default_toolchain.cc
+++ /dev/null
@@ -1,70 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/build_settings.h"
-#include "tools/gn/functions.h"
-#include "tools/gn/parse_tree.h"
-#include "tools/gn/scope.h"
-#include "tools/gn/settings.h"
-#include "tools/gn/toolchain_manager.h"
-
-/*
-set_default_toolchain: Sets the default toolchain name.
-
-  set_default_toolchain(toolchain_label)
-
-  The given label should identify a toolchain definition (see "toolchain").
-  This toolchain will be used for all targets unless otherwise specified.
-
-  This function is only valid to call during the processing of the build
-  configuration file. Since the build configuration file is processed
-  separately for each toolchain, this function will be a no-op when called
-  under any non-default toolchains.
-
-  For example, the default toolchain should be appropriate for the current
-  environment. If the current environment is 32-bit and somebody references
-  a target with a 64-bit toolchain, we wouldn't want processing of the build
-  config file for the 64-bit toolchain to reset the default toolchain to
-  64-bit, we want to keep it 32-bits.
-
-Argument:
-
-  toolchain_label:
-      Toolchain name.
-
-Example:
-
-  set_default_toolchain("//build/config/win:vs32")
-*/
-
-Value ExecuteSetDefaultToolchain(Scope* scope,
-                                 const FunctionCallNode* function,
-                                 const std::vector<Value>& args,
-                                 Err* err) {
-  if (!scope->IsProcessingBuildConfig()) {
-    *err = Err(function->function(), "Must be called from build config.",
-        "set_default_toolchain can only be called from the build configuration "
-        "file.");
-    return Value();
-  }
-
-  // Ignore non-default-build-config invocations.
-  if (!scope->IsProcessingDefaultBuildConfig())
-    return Value();
-
-  const SourceDir& current_dir = SourceDirForFunctionCall(function);
-  const Label& default_toolchain = ToolchainLabelForScope(scope);
-
-  if (!EnsureSingleStringArg(function, args, err))
-    return Value();
-  Label toolchain_label(
-      Label::Resolve(current_dir, default_toolchain, args[0], err));
-  if (toolchain_label.is_null())
-    return Value();
-
-  ToolchainManager& mgr =
-      scope->settings()->build_settings()->toolchain_manager();
-  mgr.SetDefaultToolchainUnlocked(toolchain_label, function->GetRange(), err);
-  return Value();
-}
diff --git a/tools/gn/function_template.cc b/tools/gn/function_template.cc
deleted file mode 100644
index a85a40fbaffc..000000000000
--- a/tools/gn/function_template.cc
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/functions.h"
-
-#include "tools/gn/parse_tree.h"
-#include "tools/gn/scope.h"
-#include "tools/gn/value.h"
-
-Value ExecuteTemplate(Scope* scope,
-                      const FunctionCallNode* function,
-                      const std::vector<Value>& args,
-                      BlockNode* block,
-                      Err* err) {
-  // TODO(brettw) determine if the function is built-in and throw an error if
-  // it is.
-  if (args.size() != 1) {
-    *err = Err(function->function(),
-               "Need exactly one string arg to template.");
-    return Value();
-  }
-  if (!args[0].VerifyTypeIs(Value::STRING, err))
-    return Value();
-  std::string template_name = args[0].string_value();
-
-  const FunctionCallNode* existing_template = scope->GetTemplate(template_name);
-  if (existing_template) {
-    *err = Err(function, "Duplicate template definition.",
-               "A template with this name was already defined.");
-    err->AppendSubErr(Err(existing_template->function(),
-                          "Previous definition."));
-    return Value();
-  }
-
-  scope->AddTemplate(template_name, function);
-  return Value();
-}
diff --git a/tools/gn/function_toolchain.cc b/tools/gn/function_toolchain.cc
deleted file mode 100644
index b78c639aca2c..000000000000
--- a/tools/gn/function_toolchain.cc
+++ /dev/null
@@ -1,126 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/err.h"
-#include "tools/gn/functions.h"
-#include "tools/gn/parse_tree.h"
-#include "tools/gn/scheduler.h"
-#include "tools/gn/scope.h"
-#include "tools/gn/settings.h"
-#include "tools/gn/toolchain.h"
-
-namespace {
-
-// This is jsut a unique value to take the address of to use as the key for
-// the toolchain property on a scope.
-const int kToolchainPropertyKey = 0;
-
-// Reads the given string from the scope (if present) and puts the result into
-// dest. If the value is not a string, sets the error and returns false.
-bool ReadString(Scope& scope, const char* var, std::string* dest, Err* err) {
-  const Value* v = scope.GetValue(var, true);
-  if (!v)
-    return true;  // Not present is fine.
-
-  if (!v->VerifyTypeIs(Value::STRING, err))
-    return false;
-  *dest = v->string_value();
-  return true;
-}
-
-}  // namespace
-
-Value ExecuteToolchain(Scope* scope,
-                       const FunctionCallNode* function,
-                       const std::vector<Value>& args,
-                       BlockNode* block,
-                       Err* err) {
-  if (!EnsureNotProcessingImport(function, scope, err) ||
-      !EnsureNotProcessingBuildConfig(function, scope, err))
-    return Value();
-
-  // Note that we don't want to use MakeLabelForScope since that will include
-  // the toolchain name in the label, and toolchain labels don't themselves
-  // have toolchain names.
-  const SourceDir& input_dir = SourceDirForFunctionCall(function);
-  Label label(input_dir, args[0].string_value(), SourceDir(), std::string());
-  if (g_scheduler->verbose_logging())
-    g_scheduler->Log("Generating toolchain", label.GetUserVisibleName(true));
-
-  // This object will actually be copied into the one owned by the toolchain
-  // manager, but that has to be done in the lock.
-  Toolchain toolchain(label);
-
-  Scope block_scope(scope);
-  block_scope.SetProperty(&kToolchainPropertyKey, &toolchain);
-  block->ExecuteBlockInScope(&block_scope, err);
-  block_scope.SetProperty(&kToolchainPropertyKey, NULL);
-  if (err->has_error())
-    return Value();
-  if (!block_scope.CheckForUnusedVars(err))
-    return Value();
-
-  const BuildSettings* build_settings = scope->settings()->build_settings();
-  {
-    // Save the toolchain definition in the toolchain manager and mark the
-    // corresponding item in the dependency tree resolved so that targets
-    // that depend on this toolchain know it's ready.
-    base::AutoLock lock(build_settings->item_tree().lock());
-    build_settings->toolchain_manager().SetToolchainDefinitionLocked(
-        toolchain, function->GetRange(), err);
-    build_settings->item_tree().MarkItemGeneratedLocked(label);
-  }
-  return Value();
-}
-
-Value ExecuteTool(Scope* scope,
-                  const FunctionCallNode* function,
-                  const std::vector<Value>& args,
-                  BlockNode* block,
-                  Err* err) {
-  // Find the toolchain definition we're executing inside of. The toolchain
-  // function will set a property pointing to it that we'll pick up.
-  Toolchain* toolchain = reinterpret_cast<Toolchain*>(
-      scope->GetProperty(&kToolchainPropertyKey, NULL));
-  if (!toolchain) {
-    *err = Err(function->function(), "tool() called outside of toolchain().",
-        "The tool() function can only be used inside a toolchain() "
-        "definition.");
-    return Value();
-  }
-
-  if (!EnsureSingleStringArg(function, args, err))
-    return Value();
-  const std::string& tool_name = args[0].string_value();
-  Toolchain::ToolType tool_type = Toolchain::ToolNameToType(tool_name);
-  if (tool_type == Toolchain::TYPE_NONE) {
-    *err = Err(args[0], "Unknown tool type");
-    return Value();
-  }
-
-  // Run the tool block.
-  Scope block_scope(scope);
-  block->ExecuteBlockInScope(&block_scope, err);
-  if (err->has_error())
-    return Value();
-
-  // Extract the stuff we need.
-  Toolchain::Tool t;
-  if (!ReadString(block_scope, "command", &t.command, err) ||
-      !ReadString(block_scope, "depfile", &t.depfile, err) ||
-      !ReadString(block_scope, "deps", &t.deps, err) ||
-      !ReadString(block_scope, "description", &t.description, err) ||
-      !ReadString(block_scope, "pool", &t.pool, err) ||
-      !ReadString(block_scope, "restat", &t.restat, err) ||
-      !ReadString(block_scope, "rspfile", &t.rspfile, err) ||
-      !ReadString(block_scope, "rspfile_content", &t.rspfile_content, err))
-    return Value();
-
-  // Make sure there weren't any vars set in this tool that were unused.
-  if (!block_scope.CheckForUnusedVars(err))
-    return Value();
-
-  toolchain->SetTool(tool_type, t);
-  return Value();
-}
diff --git a/tools/gn/function_write_file.cc b/tools/gn/function_write_file.cc
deleted file mode 100644
index 9356feb0495b..000000000000
--- a/tools/gn/function_write_file.cc
+++ /dev/null
@@ -1,84 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include <iostream>
-#include <sstream>
-
-#include "base/file_util.h"
-#include "base/strings/string_split.h"
-#include "base/strings/string_util.h"
-#include "tools/gn/err.h"
-#include "tools/gn/filesystem_utils.h"
-#include "tools/gn/functions.h"
-#include "tools/gn/input_file.h"
-#include "tools/gn/parse_tree.h"
-#include "tools/gn/scheduler.h"
-
-/*
-write_file: Read a file into a variable.
-
-  write_file(filename, data)
-
-  If data is a list, the list will be written one-item-per-line with no
-  quoting or brackets.
-
-  TODO(brettw) we probably need an optional third argument to control list
-  formatting.
-
-Arguments:
-
-  filename:
-      Filename to write. This must be within the output directory.
-
-  data:
-      The list or string to write.
-*/
-Value ExecuteWriteFile(Scope* scope,
-                       const FunctionCallNode* function,
-                       const std::vector<Value>& args,
-                       Err* err) {
-  if (args.size() != 2) {
-    *err = Err(function->function(), "Wrong number of args to write_file",
-               "I expected two arguments.");
-    return Value();
-  }
-
-  // Compute the file name and make sure it's in the output dir.
-  if (!args[0].VerifyTypeIs(Value::STRING, err))
-    return Value();
-  const SourceDir& cur_dir = SourceDirForFunctionCall(function);
-  SourceFile source_file = cur_dir.ResolveRelativeFile(args[0].string_value());
-  if (!EnsureStringIsInOutputDir(
-          scope->settings()->build_settings()->build_dir(),
-          source_file.value(), args[0], err))
-    return Value();
-
-  // Compute output.
-  std::ostringstream contents;
-  if (args[1].type() == Value::LIST) {
-    const std::vector<Value>& list = args[1].list_value();
-    for (size_t i = 0; i < list.size(); i++)
-      contents << list[i].ToString() << std::endl;
-  } else {
-    contents << args[1].ToString();
-  }
-
-  // Write file, creating the directory if necessary.
-  base::FilePath file_path =
-      scope->settings()->build_settings()->GetFullPath(source_file);
-  const std::string& contents_string = contents.str();
-  if (!file_util::CreateDirectory(file_path.DirName())) {
-    *err = Err(function->function(), "Unable to create directory.",
-               "I was using \"" + FilePathToUTF8(file_path.DirName()) + "\".");
-    return Value();
-  }
-  if (file_util::WriteFile(file_path,
-                           contents_string.c_str(), contents_string.size())
-      != static_cast<int>(contents_string.size())) {
-    *err = Err(function->function(), "Unable to write file.",
-               "I was writing \"" + FilePathToUTF8(file_path) + "\".");
-    return Value();
-  }
-  return Value();
-}
diff --git a/tools/gn/functions.cc b/tools/gn/functions.cc
deleted file mode 100644
index 7f32db27ba49..000000000000
--- a/tools/gn/functions.cc
+++ /dev/null
@@ -1,443 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/functions.h"
-
-#include <iostream>
-
-#include "base/strings/string_util.h"
-#include "tools/gn/config.h"
-#include "tools/gn/config_values_generator.h"
-#include "tools/gn/err.h"
-#include "tools/gn/input_file.h"
-#include "tools/gn/item_tree.h"
-#include "tools/gn/parse_tree.h"
-#include "tools/gn/scheduler.h"
-#include "tools/gn/scope.h"
-#include "tools/gn/settings.h"
-#include "tools/gn/target_manager.h"
-#include "tools/gn/token.h"
-#include "tools/gn/value.h"
-
-namespace {
-
-void FillNeedsBlockError(const FunctionCallNode* function, Err* err) {
-  *err = Err(function->function(), "This function call requires a block.",
-      "The block's \"{\" must be on the same line as the function "
-      "call's \")\".");
-}
-
-Value ExecuteAssert(const FunctionCallNode* function,
-                    const std::vector<Value>& args,
-                    Err* err) {
-  if (args.size() != 1) {
-    *err = Err(function->function(), "Wrong number of arguments.",
-               "assert() takes one argument, "
-               "were you expecting somethig else?");
-  } else if (args[0].InterpretAsInt() == 0) {
-    *err = Err(function->function(), "Assertion failed.");
-    if (args[0].origin()) {
-      // If you do "assert(foo)" we'd ideally like to show you where foo was
-      // set, and in this case the origin of the args will tell us that.
-      // However, if you do "assert(foo && bar)" the source of the value will
-      // be the assert like, which isn't so helpful.
-      //
-      // So we try to see if the args are from the same line or not. This will
-      // break if you do "assert(\nfoo && bar)" and we may show the second line
-      // as the source, oh well. The way around this is to check to see if the
-      // origin node is inside our function call block.
-      Location origin_location = args[0].origin()->GetRange().begin();
-      if (origin_location.file() != function->function().location().file() ||
-          origin_location.line_number() !=
-              function->function().location().line_number()) {
-        err->AppendSubErr(Err(args[0].origin()->GetRange(), "",
-                              "This is where it was set."));
-      }
-    }
-  }
-  return Value();
-}
-
-Value ExecuteConfig(Scope* scope,
-                    const FunctionCallNode* function,
-                    const std::vector<Value>& args,
-                    Err* err) {
-  if (!EnsureSingleStringArg(function, args, err) ||
-      !EnsureNotProcessingImport(function, scope, err))
-    return Value();
-
-  Label label(MakeLabelForScope(scope, function, args[0].string_value()));
-
-  if (g_scheduler->verbose_logging())
-    g_scheduler->Log("Generating config", label.GetUserVisibleName(true));
-
-  // Create the empty config object.
-  ItemTree* tree = &scope->settings()->build_settings()->item_tree();
-  Config* config = Config::GetConfig(scope->settings(), function->GetRange(),
-                                     label, NULL, err);
-  if (err->has_error())
-    return Value();
-
-  // Fill it.
-  const SourceDir input_dir = SourceDirForFunctionCall(function);
-  ConfigValuesGenerator gen(&config->config_values(), scope,
-                            function->function(), input_dir, err);
-  gen.Run();
-  if (err->has_error())
-    return Value();
-
-  // Mark as complete.
-  {
-    base::AutoLock lock(tree->lock());
-    tree->MarkItemGeneratedLocked(label);
-  }
-  return Value();
-}
-
-Value ExecuteDeclareArgs(Scope* scope,
-                         const FunctionCallNode* function,
-                         const std::vector<Value>& args,
-                         Err* err) {
-  // Only allow this to be called once. We use a variable in the current scope
-  // with a name the parser will reject if the user tried to type it.
-  const char did_declare_args_var[] = "@@declared_args";
-  if (scope->GetValue(did_declare_args_var)) {
-    *err = Err(function->function(), "Duplicate call to declared_args.");
-    err->AppendSubErr(
-        Err(scope->GetValue(did_declare_args_var)->origin()->GetRange(),
-                            "See the original call."));
-    return Value();
-  }
-
-  // Find the root scope where the values will be set.
-  Scope* root = scope->mutable_containing();
-  if (!root || root->containing() || !scope->IsProcessingBuildConfig()) {
-    *err = Err(function->function(), "declare_args called incorrectly."
-        "It must be called only from the build config script and in the "
-        "root scope.");
-    return Value();
-  }
-
-  // Take all variables set in the current scope as default values and put
-  // them in the parent scope. The values in the current scope are the defaults,
-  // then we apply the external args to this list.
-  Scope::KeyValueVector values;
-  scope->GetCurrentScopeValues(&values);
-  for (size_t i = 0; i < values.size(); i++) {
-    // TODO(brettw) actually import the arguments from the command line rather
-    // than only using the defaults.
-    root->SetValue(values[i].first, values[i].second,
-                   values[i].second.origin());
-  }
-
-  scope->SetValue(did_declare_args_var, Value(function, 1), NULL);
-  return Value();
-}
-
-Value ExecuteImport(Scope* scope,
-                    const FunctionCallNode* function,
-                    const std::vector<Value>& args,
-                    Err* err) {
-  if (!EnsureSingleStringArg(function, args, err) ||
-      !EnsureNotProcessingImport(function, scope, err))
-    return Value();
-
-  const SourceDir input_dir = SourceDirForFunctionCall(function);
-  SourceFile import_file =
-      input_dir.ResolveRelativeFile(args[0].string_value());
-  scope->settings()->import_manager().DoImport(import_file, function,
-                                               scope, err);
-  return Value();
-}
-
-Value ExecuteTemplate(Scope* scope,
-                      const FunctionCallNode* invocation,
-                      const std::vector<Value>& args,
-                      BlockNode* block,
-                      const FunctionCallNode* rule,
-                      Err* err) {
-  if (!EnsureNotProcessingImport(invocation, scope, err))
-    return Value();
-  Scope block_scope(scope);
-  if (!FillTargetBlockScope(scope, invocation,
-                            invocation->function().value().data(),
-                            block, args, &block_scope, err))
-    return Value();
-
-  // Run the block for the rule invocation.
-  block->ExecuteBlockInScope(&block_scope, err);
-  if (err->has_error())
-    return Value();
-
-  // Now run the rule itself with that block as the current scope.
-  rule->block()->ExecuteBlockInScope(&block_scope, err);
-  if (err->has_error())
-    return Value();
-
-  return Value();
-}
-
-Value ExecuteSetDefaults(Scope* scope,
-                         const FunctionCallNode* function,
-                         const std::vector<Value>& args,
-                         BlockNode* block,
-                         Err* err) {
-  if (!EnsureSingleStringArg(function, args, err))
-    return Value();
-  const std::string& target_type(args[0].string_value());
-
-  // Ensure there aren't defaults already set.
-  if (scope->GetTargetDefaults(target_type)) {
-    *err = Err(function->function(),
-               "This target type defaults were already set.");
-    return Value();
-  }
-
-  // Execute the block in a new scope that has a parent of the containing
-  // scope.
-  Scope block_scope(scope);
-  if (!FillTargetBlockScope(scope, function,
-                            function->function().value().data(),
-                            block, args, &block_scope, err))
-    return Value();
-
-  // Run the block for the rule invocation.
-  block->ExecuteBlockInScope(&block_scope, err);
-  if (err->has_error())
-    return Value();
-
-  // Now copy the values set on the scope we made into the free-floating one
-  // (with no containing scope) used to hold the target defaults.
-  Scope* dest = scope->MakeTargetDefaults(target_type);
-  block_scope.NonRecursiveMergeTo(dest, function, "<SHOULD NOT FAIL>", err);
-  return Value();
-}
-
-Value ExecuteSetSourcesAssignmentFilter(Scope* scope,
-                                        const FunctionCallNode* function,
-                                        const std::vector<Value>& args,
-                                        Err* err) {
-  if (args.size() != 1) {
-    *err = Err(function, "set_sources_assignment_filter takes one argument.");
-  } else {
-    scoped_ptr<PatternList> f(new PatternList);
-    f->SetFromValue(args[0], err);
-    if (!err->has_error())
-      scope->set_sources_assignment_filter(f.Pass());
-  }
-  return Value();
-}
-
-// void print(...)
-// prints all arguments to the console separated by spaces.
-Value ExecutePrint(const std::vector<Value>& args, Err* err) {
-  for (size_t i = 0; i < args.size(); i++) {
-    if (i != 0)
-      std::cout << " ";
-    std::cout << args[i].ToString();
-  }
-  std::cout << std::endl;
-  return Value();
-}
-
-}  // namespace
-
-// ----------------------------------------------------------------------------
-
-namespace functions {
-
-const char kAssert[] = "assert";
-const char kComponent[] = "component";
-const char kConfig[] = "config";
-const char kCopy[] = "copy";
-const char kCustom[] = "custom";
-const char kDeclareArgs[] = "declare_args";
-const char kExecScript[] = "exec_script";
-const char kExecutable[] = "executable";
-const char kGroup[] = "group";
-const char kImport[] = "import";
-const char kPrint[] = "print";
-const char kProcessFileTemplate[] = "process_file_template";
-const char kReadFile[] = "read_file";
-const char kSetDefaults[] = "set_defaults";
-const char kSetDefaultToolchain[] = "set_default_toolchain";
-const char kSetSourcesAssignmentFilter[] = "set_sources_assignment_filter";
-const char kSharedLibrary[] = "shared_library";
-const char kStaticLibrary[] = "static_library";
-const char kTemplate[] = "template";
-const char kTool[] = "tool";
-const char kToolchain[] = "toolchain";
-const char kTest[] = "test";
-const char kWriteFile[] = "write_file";
-
-}  // namespace functions
-
-// ----------------------------------------------------------------------------
-
-bool EnsureNotProcessingImport(const ParseNode* node,
-                               const Scope* scope,
-                               Err* err) {
-  if (scope->IsProcessingImport()) {
-    *err = Err(node, "Not valid from an import.",
-        "We need to talk about this thing you are doing here. Doing this\n"
-        "kind of thing from an imported file makes me feel like you are\n"
-        "abusing me. Imports are for defining defaults, variables, and rules.\n"
-        "The appropriate place for this kind of thing is really in a normal\n"
-        "BUILD file.");
-    return false;
-  }
-  return true;
-}
-
-bool EnsureNotProcessingBuildConfig(const ParseNode* node,
-                                    const Scope* scope,
-                                    Err* err) {
-  if (scope->IsProcessingBuildConfig()) {
-    *err = Err(node, "Not valid from the build config.",
-        "You can't do this kind of thing from the build config script, "
-        "silly!\nPut it in a regular BUILD file.");
-    return false;
-  }
-  return true;
-}
-
-bool FillTargetBlockScope(const Scope* scope,
-                          const FunctionCallNode* function,
-                          const char* target_type,
-                          const BlockNode* block,
-                          const std::vector<Value>& args,
-                          Scope* block_scope,
-                          Err* err) {
-  if (!block) {
-    FillNeedsBlockError(function, err);
-    return false;
-  }
-
-  // Copy the target defaults, if any, into the scope we're going to execute
-  // the block in.
-  const Scope* default_scope = scope->GetTargetDefaults(target_type);
-  if (default_scope) {
-    if (!default_scope->NonRecursiveMergeTo(block_scope, function,
-                                            "target defaults", err))
-      return false;
-  }
-
-  // The name is the single argument to the target function.
-  if (!EnsureSingleStringArg(function, args, err))
-    return false;
-
-  // Set the target name variable to the current target, and mark it used
-  // because we don't want to issue an error if the script ignores it.
-  const base::StringPiece target_name("target_name");
-  block_scope->SetValue(target_name, Value(function, args[0].string_value()),
-                        function);
-  block_scope->MarkUsed(target_name);
-  return true;
-}
-
-bool EnsureSingleStringArg(const FunctionCallNode* function,
-                           const std::vector<Value>& args,
-                           Err* err) {
-  if (args.size() != 1) {
-    *err = Err(function->function(), "Incorrect arguments.",
-               "This function requires a single string argument.");
-    return false;
-  }
-  return args[0].VerifyTypeIs(Value::STRING, err);
-}
-
-const SourceDir& SourceDirForFunctionCall(const FunctionCallNode* function) {
-  return function->function().location().file()->dir();
-}
-
-const Label& ToolchainLabelForScope(const Scope* scope) {
-  return scope->settings()->toolchain()->label();
-}
-
-Label MakeLabelForScope(const Scope* scope,
-                        const FunctionCallNode* function,
-                        const std::string& name) {
-  const SourceDir& input_dir = SourceDirForFunctionCall(function);
-  const Label& toolchain_label = ToolchainLabelForScope(scope);
-  return Label(input_dir, name, toolchain_label.dir(), toolchain_label.name());
-}
-
-Value ExecuteFunction(Scope* scope,
-                      const FunctionCallNode* function,
-                      const std::vector<Value>& args,
-                      BlockNode* block,
-                      Err* err) {
-  const Token& name = function->function();
-  if (block) {
-    // These target generators need to execute the block themselves.
-    if (name.IsIdentifierEqualTo(functions::kComponent))
-      return ExecuteComponent(scope, function, args, block, err);
-    if (name.IsIdentifierEqualTo(functions::kCustom))
-      return ExecuteCustom(scope, function, args, block, err);
-    if (name.IsIdentifierEqualTo(functions::kExecutable))
-      return ExecuteExecutable(scope, function, args, block, err);
-    if (name.IsIdentifierEqualTo(functions::kSetDefaults))
-      return ExecuteSetDefaults(scope, function, args, block, err);
-    if (name.IsIdentifierEqualTo(functions::kSharedLibrary))
-      return ExecuteSharedLibrary(scope, function, args, block, err);
-    if (name.IsIdentifierEqualTo(functions::kStaticLibrary))
-      return ExecuteStaticLibrary(scope, function, args, block, err);
-    if (name.IsIdentifierEqualTo(functions::kGroup))
-      return ExecuteGroup(scope, function, args, block, err);
-    if (name.IsIdentifierEqualTo(functions::kTest))
-      return ExecuteExecutable(scope, function, args, block, err);
-    if (name.IsIdentifierEqualTo(functions::kTemplate))
-      return ExecuteTemplate(scope, function, args, block, err);
-    if (name.IsIdentifierEqualTo(functions::kTool))
-      return ExecuteTool(scope, function, args, block, err);
-    if (name.IsIdentifierEqualTo(functions::kToolchain))
-      return ExecuteToolchain(scope, function, args, block, err);
-
-    const FunctionCallNode* rule =
-        scope->GetTemplate(function->function().value().as_string());
-    if (rule)
-      return ExecuteTemplate(scope, function, args, block, rule, err);
-
-    // FIXME(brettw) This is not right, what if you specify a function that
-    // doesn't take a block but specify one?!?!?
-
-    // The rest of the functions can take a pre-executed block for simplicity.
-    Scope block_scope(scope);
-    block->ExecuteBlockInScope(&block_scope, err);
-    if (err->has_error())
-      return Value();
-
-    if (name.IsIdentifierEqualTo(functions::kConfig))
-      return ExecuteConfig(&block_scope, function, args, err);
-    if (name.IsIdentifierEqualTo(functions::kCopy))
-      return ExecuteCopy(&block_scope, function, args, err);
-    if (name.IsIdentifierEqualTo(functions::kDeclareArgs))
-      return ExecuteDeclareArgs(&block_scope, function, args, err);
-
-    *err = Err(name, "Unknown function.");
-    return Value();
-  }
-
-  if (name.IsIdentifierEqualTo(functions::kAssert))
-    return ExecuteAssert(function, args, err);
-  if (name.IsIdentifierEqualTo(functions::kExecScript))
-    return ExecuteExecScript(scope, function, args, err);
-  if (name.IsIdentifierEqualTo(functions::kImport))
-    return ExecuteImport(scope, function, args, err);
-  if (name.IsIdentifierEqualTo(functions::kPrint))
-    return ExecutePrint(args, err);
-  if (name.IsIdentifierEqualTo(functions::kProcessFileTemplate))
-    return ExecuteProcessFileTemplate(scope, function, args, err);
-  if (name.IsIdentifierEqualTo(functions::kReadFile))
-    return ExecuteReadFile(scope, function, args, err);
-  if (name.IsIdentifierEqualTo(functions::kSetDefaultToolchain))
-    return ExecuteSetDefaultToolchain(scope, function, args, err);
-  if (name.IsIdentifierEqualTo(functions::kSetSourcesAssignmentFilter))
-    return ExecuteSetSourcesAssignmentFilter(scope, function, args, err);
-  if (name.IsIdentifierEqualTo(functions::kWriteFile))
-    return ExecuteWriteFile(scope, function, args, err);
-
-  *err = Err(function, "Unknown function.");
-  return Value();
-}
diff --git a/tools/gn/functions.h b/tools/gn/functions.h
deleted file mode 100644
index 806de1dda990..000000000000
--- a/tools/gn/functions.h
+++ /dev/null
@@ -1,182 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_FUNCTIONS_H_
-#define TOOLS_GN_FUNCTIONS_H_
-
-#include <string>
-#include <vector>
-
-class Err;
-class BlockNode;
-class FunctionCallNode;
-class Label;
-class ListNode;
-class ParseNode;
-class Scope;
-class SourceDir;
-class Token;
-class Value;
-
-Value ExecuteFunction(Scope* scope,
-                      const FunctionCallNode* function,
-                      const std::vector<Value>& args,
-                      BlockNode* block,  // Optional.
-                      Err* err);
-
-// Function executing functions -----------------------------------------------
-
-Value ExecuteTemplate(Scope* scope,
-                      const FunctionCallNode* function,
-                      const std::vector<Value>& args,
-                      BlockNode* block,
-                      Err* err);
-Value ExecuteExecScript(Scope* scope,
-                        const FunctionCallNode* function,
-                        const std::vector<Value>& args,
-                        Err* err);
-Value ExecuteProcessFileTemplate(Scope* scope,
-                                 const FunctionCallNode* function,
-                                 const std::vector<Value>& args,
-                                 Err* err);
-Value ExecuteReadFile(Scope* scope,
-                      const FunctionCallNode* function,
-                      const std::vector<Value>& args,
-                      Err* err);
-Value ExecuteSetDefaultToolchain(Scope* scope,
-                                 const FunctionCallNode* function,
-                                 const std::vector<Value>& args,
-                                 Err* err);
-Value ExecuteTool(Scope* scope,
-                  const FunctionCallNode* function,
-                  const std::vector<Value>& args,
-                  BlockNode* block,
-                  Err* err);
-Value ExecuteToolchain(Scope* scope,
-                       const FunctionCallNode* function,
-                       const std::vector<Value>& args,
-                       BlockNode* block,
-                       Err* err);
-Value ExecuteWriteFile(Scope* scope,
-                       const FunctionCallNode* function,
-                       const std::vector<Value>& args,
-                       Err* err);
-
-// Target-generating functions.
-Value ExecuteComponent(Scope* scope,
-                       const FunctionCallNode* function,
-                       const std::vector<Value>& args,
-                       BlockNode* block,
-                       Err* err);
-Value ExecuteCopy(Scope* scope,
-                  const FunctionCallNode* function,
-                  const std::vector<Value>& args,
-                  Err* err);
-Value ExecuteCustom(Scope* scope,
-                    const FunctionCallNode* function,
-                    const std::vector<Value>& args,
-                    BlockNode* block,
-                    Err* err);
-Value ExecuteExecutable(Scope* scope,
-                        const FunctionCallNode* function,
-                        const std::vector<Value>& args,
-                        BlockNode* block,
-                        Err* err);
-Value ExecuteSharedLibrary(Scope* scope,
-                           const FunctionCallNode* function,
-                           const std::vector<Value>& args,
-                           BlockNode* block,
-                           Err* err);
-Value ExecuteStaticLibrary(Scope* scope,
-                           const FunctionCallNode* function,
-                           const std::vector<Value>& args,
-                           BlockNode* block,
-                           Err* err);
-Value ExecuteGroup(Scope* scope,
-                   const FunctionCallNode* function,
-                   const std::vector<Value>& args,
-                   BlockNode* block,
-                   Err* err);
-
-// Helper functions -----------------------------------------------------------
-
-// Verifies that the current scope is not processing an import. If it is, it
-// will set the error, blame the given parse node for it, and return false.
-bool EnsureNotProcessingImport(const ParseNode* node,
-                               const Scope* scope,
-                               Err* err);
-
-// Like EnsureNotProcessingImport but checks for running the build config.
-bool EnsureNotProcessingBuildConfig(const ParseNode* node,
-                                    const Scope* scope,
-                                    Err* err);
-
-// Sets up the |block_scope| for executing a target (or something like it).
-// The |scope| is the containing scope. It should have been already set as the
-// parent for the |block_scope| when the |block_scope| was created.
-//
-// This will set up the target defaults and set the |target_name| variable in
-// the block scope to the current target name, which is assumed to be the first
-// argument to the function.
-//
-// On success, returns true. On failure, sets the error and returns false.
-bool FillTargetBlockScope(const Scope* scope,
-                          const FunctionCallNode* function,
-                          const char* target_type,
-                          const BlockNode* block,
-                          const std::vector<Value>& args,
-                          Scope* block_scope,
-                          Err* err);
-
-// Validates that the given function call has one string argument. This is
-// the most common function signature, so it saves space to have this helper.
-// Returns false and sets the error on failure.
-bool EnsureSingleStringArg(const FunctionCallNode* function,
-                           const std::vector<Value>& args,
-                           Err* err);
-
-// Returns the source directory for the file comtaining the given function
-// invocation.
-const SourceDir& SourceDirForFunctionCall(const FunctionCallNode* function);
-
-// Returns the name of the toolchain for the given scope.
-const Label& ToolchainLabelForScope(const Scope* scope);
-
-// Generates a label for the given scope, using the current directory and
-// toolchain, and the given name.
-Label MakeLabelForScope(const Scope* scope,
-                        const FunctionCallNode* function,
-                        const std::string& name);
-
-// Function name constants ----------------------------------------------------
-
-namespace functions {
-
-extern const char kAssert[];
-extern const char kComponent[];
-extern const char kConfig[];
-extern const char kCopy[];
-extern const char kCustom[];
-extern const char kDeclareArgs[];
-extern const char kExecScript[];
-extern const char kExecutable[];
-extern const char kGroup[];
-extern const char kImport[];
-extern const char kPrint[];
-extern const char kProcessFileTemplate[];
-extern const char kReadFile[];
-extern const char kSetDefaults[];
-extern const char kSetDefaultToolchain[];
-extern const char kSetSourcesAssignmentFilter[];
-extern const char kSharedLibrary[];
-extern const char kStaticLibrary[];
-extern const char kTemplate[];
-extern const char kTest[];
-extern const char kTool[];
-extern const char kToolchain[];
-extern const char kWriteFile[];
-
-}  // namespace functions
-
-#endif  // TOOLS_GN_FUNCTIONS_H_
diff --git a/tools/gn/functions_target.cc b/tools/gn/functions_target.cc
deleted file mode 100644
index a5991e777ca9..000000000000
--- a/tools/gn/functions_target.cc
+++ /dev/null
@@ -1,221 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/functions.h"
-
-#include "tools/gn/err.h"
-#include "tools/gn/parse_tree.h"
-#include "tools/gn/scope.h"
-#include "tools/gn/target_generator.h"
-#include "tools/gn/value.h"
-
-namespace {
-
-Value ExecuteGenericTarget(const char* target_type,
-                           Scope* scope,
-                           const FunctionCallNode* function,
-                           const std::vector<Value>& args,
-                           BlockNode* block,
-                           Err* err) {
-  if (!EnsureNotProcessingImport(function, scope, err) ||
-      !EnsureNotProcessingBuildConfig(function, scope, err))
-    return Value();
-  Scope block_scope(scope);
-  if (!FillTargetBlockScope(scope, function, target_type, block,
-                            args, &block_scope, err))
-    return Value();
-
-  block->ExecuteBlockInScope(&block_scope, err);
-  if (err->has_error())
-    return Value();
-
-  TargetGenerator::GenerateTarget(&block_scope, function->function(), args,
-                                  target_type, err);
-
-  block_scope.CheckForUnusedVars(err);
-  return Value();
-}
-
-}  // namespace
-
-Value ExecuteComponent(Scope* scope,
-                       const FunctionCallNode* function,
-                       const std::vector<Value>& args,
-                       BlockNode* block,
-                       Err* err) {
-  // A component is either a shared or static library, depending on the value
-  // of |component_mode|.
-  const Value* component_mode_value = scope->GetValue("component_mode");
-
-  static const char helptext[] =
-      "You're declaring a component here but have not defined "
-      "\"component_mode\" to\neither \"shared_library\" or \"static_library\".";
-  if (!component_mode_value) {
-    *err = Err(function->function(), "No component mode set.", helptext);
-    return Value();
-  }
-  if (component_mode_value->type() != Value::STRING ||
-      (component_mode_value->string_value() != functions::kSharedLibrary &&
-       component_mode_value->string_value() != functions::kStaticLibrary)) {
-    *err = Err(function->function(), "Invalid component mode set.", helptext);
-    return Value();
-  }
-  const std::string& component_mode = component_mode_value->string_value();
-
-  if (!EnsureNotProcessingImport(function, scope, err))
-    return Value();
-  Scope block_scope(scope);
-  if (!FillTargetBlockScope(scope, function, component_mode.c_str(), block,
-                            args, &block_scope, err))
-    return Value();
-
-  block->ExecuteBlockInScope(&block_scope, err);
-  if (err->has_error())
-    return Value();
-
-  TargetGenerator::GenerateTarget(&block_scope, function->function(), args,
-                                  component_mode, err);
-  return Value();
-}
-
-Value ExecuteCopy(Scope* scope,
-                  const FunctionCallNode* function,
-                  const std::vector<Value>& args,
-                  Err* err) {
-  if (!EnsureNotProcessingImport(function, scope, err) ||
-      !EnsureNotProcessingBuildConfig(function, scope, err))
-    return Value();
-  TargetGenerator::GenerateTarget(scope, function->function(), args,
-                                  functions::kCopy, err);
-  return Value();
-}
-
-/*
-custom: Declare a script-generated target.
-
-  This target type allows you to run a script over a set of sources files and
-  generate a set of output files.
-
-  The script will be executed with the given arguments with the current
-  directory being that of the current BUILD file.
-
-  There are two modes. The first mode is the "per-file" mode where you
-  specify a list of sources and the script is run once for each one as a build
-  rule. In this case, each file specified in the |outputs| variable must be
-  unique when applied to each source file (normally you would reference
-  "{{source_name_part}}" from within each one) or the build system will get
-  confused about how to build those files. You should use the |data| variable
-  to list all additional dependencies of your script: these will be added
-  as dependencies for each build step.
-
-  The second mode is when you just want to run a script once rather than as a
-  general rule over a set of files. In this case you don't list any sources.
-  Dependencies of your script are specified only in the |data| variable and
-  your |outputs| variable should just list all outputs.
-
-Variables:
-
-  args, data, deps, outputs, script*, sources
-  * = required
-
-  There are some special substrings that will be searched for when processing
-  some variables:
-
-    "{{source}}"
-        Expanded in |args|, this is the name of the source file relative to the
-        current directory when running the script. This is how you specify
-        the current input file to your script.
-
-    "{{source_name_part}}"
-        Expanded in |args| and |outputs|, this is just the filename part of the
-        current source file with no directory or extension. This is how you
-        specify a name transoformation to the output. Normally you would
-        write an output as "$target_output_dir/{{source_name_part}}.o".
-
-  All |outputs| files must be inside the output directory of the build. You
-  would generally use "$target_output_dir" or "$target_gen_dir" to reference
-  the output or generated intermediate file directories, respectively.
-
-Examples:
-
-  custom("general_rule") {
-    script = "do_processing.py"
-    sources = [ "foo.idl" ]
-    data = [ "my_configuration.txt" ]
-    outputs = [ "$target_gen_dir/{{source_name_part}}.h" ]
-    args = [ "{{source}}",
-             "-o", "$relative_target_gen_dir/{{source_name_part}}.h" ]
-  }
-
-  custom("just_run_this_guy_once") {
-    script = "doprocessing.py"
-    data = [ "my_configuration.txt" ]
-    outputs = [ "$target_gen_dir/insightful_output.txt" ]
-    args = [ "--output_dir", $target_gen_dir ]
-  }
-*/
-Value ExecuteCustom(Scope* scope,
-                    const FunctionCallNode* function,
-                    const std::vector<Value>& args,
-                    BlockNode* block,
-                    Err* err) {
-  return ExecuteGenericTarget(functions::kCustom, scope, function, args,
-                              block, err);
-}
-
-Value ExecuteExecutable(Scope* scope,
-                        const FunctionCallNode* function,
-                        const std::vector<Value>& args,
-                        BlockNode* block,
-                        Err* err) {
-  return ExecuteGenericTarget(functions::kExecutable, scope, function, args,
-                              block, err);
-}
-
-Value ExecuteSharedLibrary(Scope* scope,
-                           const FunctionCallNode* function,
-                           const std::vector<Value>& args,
-                           BlockNode* block,
-                           Err* err) {
-  return ExecuteGenericTarget(functions::kSharedLibrary, scope, function, args,
-                              block, err);
-}
-
-Value ExecuteStaticLibrary(Scope* scope,
-                           const FunctionCallNode* function,
-                           const std::vector<Value>& args,
-                           BlockNode* block,
-                           Err* err) {
-  return ExecuteGenericTarget(functions::kStaticLibrary, scope, function, args,
-                              block, err);
-}
-
-/*
-group: Declare a group of targets.
-
-  This target type allows you to create meta-targets that just collect a set
-  of dependencies into one named target.
-
-Variables:
-
-  deps
-
-Example:
-
-  group("all") {
-    deps = [
-      "//project:runner",
-      "//project:unit_tests",
-    ]
-  }
-*/
-Value ExecuteGroup(Scope* scope,
-                   const FunctionCallNode* function,
-                   const std::vector<Value>& args,
-                   BlockNode* block,
-                   Err* err) {
-  return ExecuteGenericTarget(functions::kGroup, scope, function, args,
-                              block, err);
-}
-
diff --git a/tools/gn/generate_test_gn_data.cc b/tools/gn/generate_test_gn_data.cc
deleted file mode 100644
index 017c4c443198..000000000000
--- a/tools/gn/generate_test_gn_data.cc
+++ /dev/null
@@ -1,129 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include <fstream>
-#include <iostream>
-
-#include "base/file_util.h"
-#include "base/files/file_path.h"
-#include "base/strings/string_number_conversions.h"
-#include "base/strings/utf_string_conversions.h"
-#include "build/build_config.h"
-
-// Usage: just run in the directory where you want your test source root to be.
-
-int files_written = 0;
-int targets_written = 0;
-
-base::FilePath UTF8ToFilePath(const std::string& s) {
-#if defined(OS_WIN)
-  return base::FilePath(UTF8ToWide(s));
-#else
-  return base::FilePath(s);
-#endif
-}
-
-std::string FilePathToUTF8(const base::FilePath& path) {
-#if defined(OS_WIN)
-  return WideToUTF8(path.value());
-#else
-  return path.value();
-#endif
-}
-
-base::FilePath RepoPathToPathName(const std::vector<int>& repo_path) {
-  base::FilePath ret;
-  for (size_t i = 0; i < repo_path.size(); i++) {
-    ret = ret.Append(UTF8ToFilePath(base::IntToString(repo_path[i])));
-  }
-  return ret;
-}
-
-std::string TargetIndexToLetter(int target_index) {
-  char ret[2];
-  ret[0] = 'a' + target_index;
-  ret[1] = 0;
-  return ret;
-}
-
-std::string RepoPathToTargetName(const std::vector<int>& repo_path,
-                                 int target_index) {
-  std::string ret;
-  for (size_t i = 0; i < repo_path.size(); i++) {
-    if (i != 0)
-      ret.push_back('_');
-    ret.append(base::IntToString(repo_path[i]));
-  }
-  ret += TargetIndexToLetter(target_index);
-  return ret;
-}
-
-std::string RepoPathToFullTargetName(const std::vector<int>& repo_path,
-                                 int target_index) {
-  std::string ret;
-  for (size_t i = 0; i < repo_path.size(); i++) {
-    ret.push_back('/');
-    ret.append(base::IntToString(repo_path[i]));
-  }
-
-  ret += ":" + RepoPathToTargetName(repo_path, target_index);
-  return ret;
-}
-
-void WriteLevel(const std::vector<int>& repo_path,
-                int spread,
-                int max_depth,
-                int targets_per_level,
-                int files_per_target) {
-  base::FilePath dirname = RepoPathToPathName(repo_path);
-  base::FilePath filename = dirname.AppendASCII("BUILD.gn");
-  std::cout << "Writing " << FilePathToUTF8(filename) << "\n";
-
-  // Don't keep the file open while recursing.
-  {
-    file_util::CreateDirectory(dirname);
-
-    std::ofstream file;
-    file.open(FilePathToUTF8(filename).c_str(),
-              std::ios_base::out | std::ios_base::binary);
-    files_written++;
-
-    for (int i = 0; i < targets_per_level; i++) {
-      targets_written++;
-      file << "executable(\"" << RepoPathToTargetName(repo_path, i)
-           << "\") {\n";
-      file << "  sources = [\n";
-      for (int f = 0; f < files_per_target; f++)
-        file << "    \"" << base::IntToString(f) << ".cc\",\n";
-
-      if (repo_path.size() < (size_t)max_depth) {
-        file << "  ]\n";
-        file << "  deps = [\n";
-        for (int d = 0; d < spread; d++) {
-          std::vector<int> cur = repo_path;
-          cur.push_back(d);
-          for (int t = 0; t < targets_per_level; t++)
-            file << "    \"" << RepoPathToFullTargetName(cur, t) << "\",\n";
-        }
-      }
-      file << "  ]\n}\n\n";
-    }
-  }
-  if (repo_path.size() < (size_t)max_depth) {
-    // Recursively generate subdirs.
-    for (int i = 0; i < spread; i++) {
-      std::vector<int> cur = repo_path;
-      cur.push_back(i);
-      WriteLevel(cur, spread, max_depth, targets_per_level, files_per_target);
-    }
-  }
-}
-
-int main() {
-  WriteLevel(std::vector<int>(), 5, 4, 3, 50);  // 781 files, 2343 targets
-  //WriteLevel(std::vector<int>(), 6, 4, 2, 50);
-  std::cout << "Wrote " << files_written << " files and "
-            << targets_written << " targets.\n";
-  return 0;
-}
diff --git a/tools/gn/gn.gyp b/tools/gn/gn.gyp
deleted file mode 100644
index 4904e3d7363a..000000000000
--- a/tools/gn/gn.gyp
+++ /dev/null
@@ -1,171 +0,0 @@
-{
-  'variables': {
-    'chromium_code': 1,
-  },
-  'targets': [
-    {
-      'target_name': 'gn_lib',
-      'type': 'static_library',
-      'dependencies': [
-        '../../base/base.gyp:base',
-      ],
-      'sources': [
-        'build_settings.cc',
-        'build_settings.h',
-        'command_desc.cc',
-        'command_desc.h',
-        'command_gen.cc',
-        'command_gen.h',
-        'commands.h',
-        'config.cc',
-        'config.h',
-        'config_values.cc',
-        'config_values.h',
-        'config_values_extractors.cc',
-        'config_values_extractors.h',
-        'config_values_generator.cc',
-        'config_values_generator.h',
-        'err.cc',
-        'err.h',
-        'escape.cc',
-        'escape.h',
-        'file_template.cc',
-        'file_template.h',
-        'filesystem_utils.cc',
-        'filesystem_utils.h',
-        'functions_target.cc',
-        'functions.cc',
-        'functions.h',
-        'function_exec_script.cc',
-        'function_process_file_template.cc',
-        'function_read_file.cc',
-        'function_set_default_toolchain.cc',
-        'function_template.cc',
-        'function_toolchain.cc',
-        'function_write_file.cc',
-        'import_manager.cc',
-        'import_manager.h',
-        'input_conversion.cc',
-        'input_conversion.h',
-        'input_file.cc',
-        'input_file.h',
-        'input_file_manager.cc',
-        'input_file_manager.h',
-        'item.cc',
-        'item.h',
-        'item_node.cc',
-        'item_node.h',
-        'item_tree.cc',
-        'item_tree.h',
-        'label.cc',
-        'label.h',
-        'location.h',
-        'ninja_build_writer.cc',
-        'ninja_build_writer.h',
-        'ninja_helper.cc',
-        'ninja_helper.h',
-        'ninja_target_writer.cc',
-        'ninja_target_writer.h',
-        'ninja_toolchain_writer.cc',
-        'ninja_toolchain_writer.h',
-        'ninja_writer.cc',
-        'ninja_writer.h',
-        'operators.cc',
-        'operators.h',
-        'output_file.h',
-        'parse_tree.cc',
-        'parse_tree.h',
-        'parser.cc',
-        'parser.h',
-        'path_output.cc',
-        'path_output.h',
-        'pattern.cc',
-        'pattern.h',
-        'scheduler.cc',
-        'scheduler.h',
-        'scope.cc',
-        'scope.h',
-        'scope_per_file_provider.cc',
-        'scope_per_file_provider.h',
-        'settings.cc',
-        'settings.h',
-        'setup.cc',
-        'setup.h',
-        'source_dir.cc',
-        'source_dir.h',
-        'source_file.cc',
-        'source_file.h',
-        'standard_out.cc',
-        'standard_out.h',
-        'string_utils.cc',
-        'string_utils.h',
-        'target.cc',
-        'target.h',
-        'target_generator.cc',
-        'target_generator.h',
-        'target_manager.cc',
-        'target_manager.h',
-        'token.cc',
-        'token.h',
-        'tokenizer.cc',
-        'tokenizer.h',
-        'toolchain.cc',
-        'toolchain.h',
-        'toolchain_manager.cc',
-        'toolchain_manager.h',
-        'value.cc',
-        'value.h',
-        'value_extractors.cc',
-        'value_extractors.h',
-      ],
-    },
-    {
-      'target_name': 'gn',
-      'type': 'executable',
-      'sources': [
-        'gn_main.cc',
-      ],
-      'dependencies': [
-        'gn_lib',
-        '../../base/base.gyp:base',
-        '../../base/third_party/dynamic_annotations/dynamic_annotations.gyp:dynamic_annotations',
-      ],
-    },
-    {
-      'target_name': 'gn_unittests',
-      'type': '<(gtest_target_type)',
-      'sources': [
-        'escape_unittest.cc',
-        'file_template_unittest.cc',
-        'filesystem_utils_unittest.cc',
-        'input_conversion_unittest.cc',
-        'label_unittest.cc',
-        'ninja_helper_unittest.cc',
-        'parser_unittest.cc',
-        'path_output_unittest.cc',
-        'pattern_unittest.cc',
-        'source_dir_unittest.cc',
-        'string_utils_unittest.cc',
-        'target_generator_unittest.cc',
-        'target_manager_unittest.cc',
-        'tokenizer_unittest.cc',
-      ],
-      'dependencies': [
-        'gn_lib',
-        '../../base/base.gyp:run_all_unittests',
-        '../../base/base.gyp:test_support_base',
-        '../../testing/gtest.gyp:gtest',
-      ],
-    },
-    {
-      'target_name': 'generate_test_gn_data',
-      'type': 'executable',
-      'sources': [
-        'generate_test_gn_data.cc',
-      ],
-      'dependencies': [
-        '../../base/base.gyp:base',
-      ],
-    }
-  ],
-}
diff --git a/tools/gn/gn_main.cc b/tools/gn/gn_main.cc
deleted file mode 100644
index 6f5b31e8299f..000000000000
--- a/tools/gn/gn_main.cc
+++ /dev/null
@@ -1,59 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "base/at_exit.h"
-#include "base/command_line.h"
-#include "base/strings/utf_string_conversions.h"
-#include "tools/gn/commands.h"
-#include "tools/gn/err.h"
-#include "tools/gn/location.h"
-
-namespace {
-
-std::vector<std::string> GetArgs(const CommandLine& cmdline) {
-  CommandLine::StringVector in_args = cmdline.GetArgs();
-#if defined(OS_WIN)
-  std::vector<std::string> out_args;
-  for (size_t i = 0; i < in_args.size(); i++)
-    out_args.push_back(base::WideToUTF8(in_args[i]));
-  return out_args;
-#else
-  return in_args;
-#endif
-}
-
-}  // namespace
-
-int main(int argc, char** argv) {
-  base::AtExitManager at_exit;
-  CommandLine::Init(argc, argv);
-
-  std::vector<std::string> args = GetArgs(*CommandLine::ForCurrentProcess());
-
-  std::string command;
-  if (args.empty()) {
-    command = "gen";
-  } else {
-    command = args[0];
-    args.erase(args.begin());
-  }
-
-  int retval = 0;
-  if (command == "gen") {
-    retval = RunGenCommand(args);
-  } else if (command == "desc" || command == "wtf") {
-    retval = RunDescCommand(args);
-  } else if (command == "deps") {
-    retval = RunDepsCommand(args);
-  } else if (command == "tree") {
-    retval = RunTreeCommand(args);
-  } else {
-    Err(Location(),
-        "Command \"" + command + "\" unknown.").PrintToStdout();
-    retval = 1;
-  }
-
-  exit(retval);  // Don't free memory, it can be really slow!
-  return retval;
-}
diff --git a/tools/gn/import_manager.cc b/tools/gn/import_manager.cc
deleted file mode 100644
index 774f866334a7..000000000000
--- a/tools/gn/import_manager.cc
+++ /dev/null
@@ -1,83 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/import_manager.h"
-
-#include "base/memory/scoped_ptr.h"
-#include "base/stl_util.h"
-#include "tools/gn/parse_tree.h"
-#include "tools/gn/scheduler.h"
-
-namespace {
-
-// Returns a newly-allocated scope on success, null on failure.
-Scope* UncachedImport(const Settings* settings,
-                      const SourceFile& file,
-                      const ParseNode* node_for_err,
-                      Err* err) {
-  const ParseNode* node = g_scheduler->input_file_manager()->SyncLoadFile(
-      node_for_err->GetRange(), settings->build_settings(), file, err);
-  if (!node)
-    return NULL;
-  const BlockNode* block = node->AsBlock();
-  CHECK(block);
-
-  scoped_ptr<Scope> scope(new Scope(settings->base_config()));
-  scope->SetProcessingImport();
-  block->ExecuteBlockInScope(scope.get(), err);
-  if (err->has_error())
-    return NULL;
-  scope->ClearProcessingImport();
-
-  return scope.release();
-}
-
-}  // namesapce
-
-ImportManager::ImportManager() {
-}
-
-ImportManager::~ImportManager() {
-  STLDeleteContainerPairSecondPointers(imports_.begin(), imports_.end());
-}
-
-bool ImportManager::DoImport(const SourceFile& file,
-                             const ParseNode* node_for_err,
-                             Scope* scope,
-                             Err* err) {
-  // See if we have a cached import, but be careful to actually do the scope
-  // copying outside of the lock.
-  const Scope* imported_scope = NULL;
-  {
-    base::AutoLock lock(lock_);
-    ImportMap::const_iterator found = imports_.find(file);
-    if (found != imports_.end())
-      imported_scope = found->second;
-  }
-
-  if (!imported_scope) {
-    // Do a new import of the file.
-    imported_scope = UncachedImport(scope->settings(), file,
-                                    node_for_err, err);
-    if (!imported_scope)
-      return false;
-
-    // We loaded the file outside the lock. This means that there could be a
-    // race and the file was already loaded on a background thread. Recover
-    // from this and use the existing one if that happens.
-    {
-      base::AutoLock lock(lock_);
-      ImportMap::const_iterator found = imports_.find(file);
-      if (found != imports_.end()) {
-        delete imported_scope;
-        imported_scope = found->second;
-      } else {
-        imports_[file] = imported_scope;
-      }
-    }
-  }
-
-  return imported_scope->NonRecursiveMergeTo(scope, node_for_err,
-                                             "import", err);
-}
diff --git a/tools/gn/import_manager.h b/tools/gn/import_manager.h
deleted file mode 100644
index 725a5b28a0bb..000000000000
--- a/tools/gn/import_manager.h
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_IMPORT_MANAGER_H_
-#define TOOLS_GN_IMPORT_MANAGER_H_
-
-#include <map>
-
-#include "base/synchronization/lock.h"
-
-class Err;
-class ParseNode;
-class Scope;
-class SourceFile;
-
-// Provides a cache of the results of importing scopes so the results can
-// be re-used rather than running the imported files multiple times.
-class ImportManager {
- public:
-  ImportManager();
-  ~ImportManager();
-
-  // Does an import of the given file into the given scope. On error, sets the
-  // error and returns false.
-  bool DoImport(const SourceFile& file,
-                const ParseNode* node_for_err,
-                Scope* scope,
-                Err* err);
-
- private:
-  base::Lock lock_;
-
-  // Owning pointers to the scopes.
-  typedef std::map<SourceFile, const Scope*> ImportMap;
-  ImportMap imports_;
-
-  DISALLOW_COPY_AND_ASSIGN(ImportManager);
-};
-
-#endif  // TOOLS_GN_IMPORT_MANAGER_H_
diff --git a/tools/gn/input_conversion.cc b/tools/gn/input_conversion.cc
deleted file mode 100644
index c0a0685ca368..000000000000
--- a/tools/gn/input_conversion.cc
+++ /dev/null
@@ -1,205 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "input_conversion.h"
-
-#include "base/strings/string_split.h"
-#include "base/strings/string_util.h"
-#include "tools/gn/build_settings.h"
-#include "tools/gn/err.h"
-#include "tools/gn/input_file.h"
-#include "tools/gn/label.h"
-#include "tools/gn/parse_tree.h"
-#include "tools/gn/parser.h"
-#include "tools/gn/scope.h"
-#include "tools/gn/settings.h"
-#include "tools/gn/tokenizer.h"
-#include "tools/gn/value.h"
-
-namespace {
-
-// Returns the "first bit" of some script output for writing to error messages.
-std::string GetExampleOfBadInput(const std::string& input) {
-  std::string result(input);
-
-  // Maybe the result starts with a blank line or something, which we don't
-  // want.
-  TrimWhitespaceASCII(result, TRIM_ALL, &result);
-
-  // Now take the first line, or the first set of chars, whichever is shorter.
-  bool trimmed = false;
-  size_t newline_offset = result.find('\n');
-  if (newline_offset != std::string::npos) {
-    trimmed = true;
-    result.resize(newline_offset);
-  }
-  TrimWhitespaceASCII(result, TRIM_ALL, &result);
-
-  const int kMaxSize = 50;
-  if (result.size() > kMaxSize) {
-    trimmed = true;
-    result.resize(kMaxSize);
-  }
-
-  if (trimmed)
-    result.append("...");
-  return result;
-}
-
-// When parsing the result as a value, we may get various types of errors.
-// This creates an error message for this case with an optional nested error
-// message to reference. If there is no nested err, pass Err().
-//
-// This code also takes care to rewrite the original error which will reference
-// the temporary InputFile which won't exist when the error is propogated
-// out to a higher level.
-Err MakeParseErr(const std::string& input,
-                 const ParseNode* origin,
-                 const Err& nested) {
-  std::string help_text =
-      "When parsing a result as a \"value\" it should look like a list:\n"
-      "  [ \"a\", \"b\", 5 ]\n"
-      "or a single literal:\n"
-      "  \"my result\"\n"
-      "but instead I got this, which I find very confusing:\n";
-  help_text.append(input);
-  if (nested.has_error())
-    help_text.append("\nThe exact error was:");
-
-  Err result(origin, "Script result wasn't a valid value.", help_text);
-  if (nested.has_error()) {
-    result.AppendSubErr(Err(LocationRange(), nested.message(),
-                            nested.help_text()));
-  }
-  return result;
-}
-
-// Sets the origin of the value and any nested values with the given node.
-void RecursivelySetOrigin(Value* value, const ParseNode* origin) {
-  value->set_origin(origin);
-  if (value->type() == Value::LIST) {
-    std::vector<Value>& list_value = value->list_value();
-    for (size_t i = 0; i < list_value.size(); i++)
-      RecursivelySetOrigin(&list_value[i], origin);
-  }
-}
-
-Value ParseString(const std::string& input,
-                  const ParseNode* origin,
-                  Err* err) {
-  SourceFile empty_source_for_most_vexing_parse;
-  InputFile input_file(empty_source_for_most_vexing_parse);
-  input_file.SetContents(input);
-
-  std::vector<Token> tokens = Tokenizer::Tokenize(&input_file, err);
-  if (err->has_error()) {
-    *err = MakeParseErr(input, origin, *err);
-    return Value();
-  }
-
-  scoped_ptr<ParseNode> expression = Parser::ParseExpression(tokens, err);
-  if (err->has_error()) {
-    *err = MakeParseErr(input, origin, *err);
-    return Value();
-  }
-
-  // It's valid for the result to be a null pointer, this just means that the
-  // script returned nothing.
-  if (!expression)
-    return Value();
-
-  // The result should either be a list or a literal, anything else is
-  // invalid.
-  if (!expression->AsList() && !expression->AsLiteral()) {
-    *err = MakeParseErr(input, origin, Err());
-    return Value();
-  }
-
-  BuildSettings build_settings;
-  Label empty_label;
-  Toolchain toolchain(empty_label);
-  Settings settings(&build_settings, &toolchain, std::string());
-  Scope scope(&settings);
-
-  Err nested_err;
-  Value result = expression->Execute(&scope, &nested_err);
-  if (nested_err.has_error()) {
-    *err = MakeParseErr(input, origin, nested_err);
-    return Value();
-  }
-
-  // The returned value will have references to the temporary parse nodes we
-  // made on the stack. If the values are used in an error message in the
-  // future, this will crash. Reset the origin of all values to be our
-  // containing origin.
-  RecursivelySetOrigin(&result, origin);
-  return result;
-}
-
-Value ParseList(const std::string& input,
-                const ParseNode* origin,
-                Err* err) {
-  Value ret(origin, Value::LIST);
-  std::vector<std::string> as_lines;
-  base::SplitString(input, '\n', &as_lines);
-
-  // Trim empty lines from the end.
-  // Do we want to make this configurable?
-  while (!as_lines.empty() && as_lines[as_lines.size() - 1].empty())
-    as_lines.resize(as_lines.size() - 1);
-
-  ret.list_value().reserve(as_lines.size());
-  for (size_t i = 0; i < as_lines.size(); i++)
-    ret.list_value().push_back(Value(origin, as_lines[i]));
-  return ret;
-}
-
-}  // namespace
-
-/*
-input_conversion: Specifies how to transform input to a variable.
-
-  input_conversion is an argument to read_file and exec_script that specifies
-  how the result of the read operation should be converted into a variable.
-
-  "list lines":
-      Return the file contents as a list, with a string for each line. The
-      newlines will not be present in the result. Empty newlines will be
-      trimmed from the trailing end of the returned list.
-
-  "value":
-      Parse the input as if it was a literal rvalue in a buildfile.
-      Examples of typical program output using this mode:
-        [ "foo", "bar" ]     (result will be a list)
-      or
-        "foo bar"            (result will be a string)
-      or
-        5                    (result will be an integer)
-
-      Note that if the input is empty, the result will be a null value which
-      will produce an error if assigned to a variable.
-
-  "string":
-      Return the file contents into a single string.
-*/
-
-Value ConvertInputToValue(const std::string& input,
-                          const ParseNode* origin,
-                          const Value& input_conversion_value,
-                          Err* err) {
-  if (!input_conversion_value.VerifyTypeIs(Value::STRING, err))
-    return Value();
-  const std::string& input_conversion = input_conversion_value.string_value();
-
-  if (input_conversion == "value")
-    return ParseString(input, origin, err);
-  if (input_conversion == "string")
-    return Value(origin, input);
-  if (input_conversion == "list lines")
-    return ParseList(input, origin, err);
-
-  *err = Err(input_conversion_value, "Not a valid read file mode.",
-             "Have you considered a career in retail?");
-  return Value();
-}
diff --git a/tools/gn/input_conversion.h b/tools/gn/input_conversion.h
deleted file mode 100644
index d15e513c5b8f..000000000000
--- a/tools/gn/input_conversion.h
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_INPUT_CONVERSION_H_
-#define TOOLS_GN_INPUT_CONVERSION_H_
-
-#include <string>
-
-class Err;
-class ParseNode;
-class Value;
-
-// Converts the given input string (is read from a file or output from a
-// script) to a Value. Conversions as specified in the input_conversion string
-// will be performed. The given origin will be used for constructing the
-// resulting Value.
-//
-// If the conversion string is invalid, the error will be set and an empty
-// value will be returned.
-Value ConvertInputToValue(const std::string& input,
-                          const ParseNode* origin,
-                          const Value& input_conversion_value,
-                          Err* err);
-
-#endif  // TOOLS_GN_INPUT_CONVERSION_H_
diff --git a/tools/gn/input_conversion_unittest.cc b/tools/gn/input_conversion_unittest.cc
deleted file mode 100644
index 59c012344c9c..000000000000
--- a/tools/gn/input_conversion_unittest.cc
+++ /dev/null
@@ -1,81 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "testing/gtest/include/gtest/gtest.h"
-#include "tools/gn/err.h"
-#include "tools/gn/input_conversion.h"
-#include "tools/gn/value.h"
-
-TEST(InputConversion, String) {
-  Err err;
-  std::string input("\nfoo bar  \n");
-  Value result = ConvertInputToValue(input, NULL, Value(NULL, "string"), &err);
-  EXPECT_FALSE(err.has_error());
-  EXPECT_EQ(Value::STRING, result.type());
-  EXPECT_EQ(input, result.string_value());
-}
-
-TEST(InputConversion, ListLines) {
-  Err err;
-  std::string input("\nfoo\nbar  \n");
-  Value result = ConvertInputToValue(input, NULL, Value(NULL, "list lines"),
-                                     &err);
-  EXPECT_FALSE(err.has_error());
-  EXPECT_EQ(Value::LIST, result.type());
-  ASSERT_EQ(3u, result.list_value().size());
-  EXPECT_EQ("",    result.list_value()[0].string_value());
-  EXPECT_EQ("foo", result.list_value()[1].string_value());
-  EXPECT_EQ("bar", result.list_value()[2].string_value());
-}
-
-TEST(InputConversion, ValueString) {
-  Err err;
-  std::string input("\"str\"");
-  Value result = ConvertInputToValue(input, NULL, Value(NULL, "value"), &err);
-  EXPECT_FALSE(err.has_error());
-  EXPECT_EQ(Value::STRING, result.type());
-  EXPECT_EQ("str", result.string_value());
-}
-
-TEST(InputConversion, ValueInt) {
-  Err err;
-  std::string input("\n\n  6 \n ");
-  Value result = ConvertInputToValue(input, NULL, Value(NULL, "value"), &err);
-  EXPECT_FALSE(err.has_error());
-  EXPECT_EQ(Value::INTEGER, result.type());
-  EXPECT_EQ(6, result.int_value());
-}
-
-TEST(InputConversion, ValueList) {
-  Err err;
-  std::string input("\n [ \"a\", 5]");
-  Value result = ConvertInputToValue(input, NULL, Value(NULL, "value"), &err);
-  EXPECT_FALSE(err.has_error());
-  ASSERT_EQ(Value::LIST, result.type());
-  ASSERT_EQ(2u, result.list_value().size());
-  EXPECT_EQ("a", result.list_value()[0].string_value());
-  EXPECT_EQ(5,   result.list_value()[1].int_value());
-}
-
-TEST(InputConversion, ValueEmpty) {
-  Err err;
-  ConvertInputToValue("", NULL, Value(NULL, "value"), &err);
-}
-
-TEST(InputConversion, ValueError) {
-  Err err;
-  std::string input("\n [ \"a\", 5\nfoo bar");
-  Value result = ConvertInputToValue(input, NULL, Value(NULL, "value"), &err);
-  EXPECT_TRUE(err.has_error());
-
-  // Blocks not allowed.
-  input = "{ foo = 5 }";
-  result = ConvertInputToValue(input, NULL, Value(NULL, "value"), &err);
-  EXPECT_TRUE(err.has_error());
-
-  // Function calls not allowed.
-  input = "print(5)";
-  result = ConvertInputToValue(input, NULL, Value(NULL, "value"), &err);
-  EXPECT_TRUE(err.has_error());
-}
diff --git a/tools/gn/input_file.cc b/tools/gn/input_file.cc
deleted file mode 100644
index b2c3c0b40a56..000000000000
--- a/tools/gn/input_file.cc
+++ /dev/null
@@ -1,30 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/input_file.h"
-
-#include "base/file_util.h"
-
-InputFile::InputFile(const SourceFile& name)
-    : name_(name),
-      dir_(name_.GetDir()),
-      contents_loaded_(false) {
-}
-
-InputFile::~InputFile() {
-}
-
-void InputFile::SetContents(const std::string& c) {
-  contents_loaded_ = true;
-  contents_ = c;
-}
-
-bool InputFile::Load(const base::FilePath& system_path) {
-  if (file_util::ReadFileToString(system_path, &contents_)) {
-    contents_loaded_ = true;
-    return true;
-  }
-  return false;
-}
-
diff --git a/tools/gn/input_file.h b/tools/gn/input_file.h
deleted file mode 100644
index 66cf55cfbdc9..000000000000
--- a/tools/gn/input_file.h
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_INPUT_FILE_H_
-#define TOOLS_GN_INPUT_FILE_H_
-
-#include <string>
-
-#include "base/basictypes.h"
-#include "base/files/file_path.h"
-#include "base/logging.h"
-#include "tools/gn/source_dir.h"
-#include "tools/gn/source_file.h"
-
-class InputFile {
- public:
-  InputFile(const SourceFile& name);
-
-  // Constructor for testing. Uses an empty file path and a given contents.
-  //InputFile(const char* contents);
-  ~InputFile();
-
-  const SourceFile& name() const { return name_; }
-
-  // The directory is just a cached version of name_->GetDir() but we get this
-  // a lot so computing it once up front saves a bunch of work.
-  const SourceDir& dir() const { return dir_; }
-
-  const std::string& contents() const {
-    DCHECK(contents_loaded_);
-    return contents_;
-  }
-
-  // For testing and in cases where this input doesn't actually refer to
-  // "a file".
-  void SetContents(const std::string& c);
-
-  // Loads the given file synchronously, returning true on success. This
-  bool Load(const base::FilePath& system_path);
-
- private:
-  SourceFile name_;
-  SourceDir dir_;
-
-  bool contents_loaded_;
-  std::string contents_;
-
-  DISALLOW_COPY_AND_ASSIGN(InputFile);
-};
-
-#endif  // TOOLS_GN_INPUT_FILE_H_
diff --git a/tools/gn/input_file_manager.cc b/tools/gn/input_file_manager.cc
deleted file mode 100644
index e840ba022bd0..000000000000
--- a/tools/gn/input_file_manager.cc
+++ /dev/null
@@ -1,254 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/input_file_manager.h"
-
-#include "base/bind.h"
-#include "base/stl_util.h"
-#include "tools/gn/filesystem_utils.h"
-#include "tools/gn/parser.h"
-#include "tools/gn/scheduler.h"
-#include "tools/gn/scope_per_file_provider.h"
-#include "tools/gn/tokenizer.h"
-
-namespace {
-
-void InvokeFileLoadCallback(const InputFileManager::FileLoadCallback& cb,
-                            const ParseNode* node) {
-  cb.Run(node);
-}
-
-}  // namespace
-
-InputFileManager::InputFileData::InputFileData(const SourceFile& file_name)
-    : file(file_name),
-      loaded(false),
-      sync_invocation(false) {
-}
-
-InputFileManager::InputFileData::~InputFileData() {
-}
-
-InputFileManager::InputFileManager() {
-}
-
-InputFileManager::~InputFileManager() {
-  // Should be single-threaded by now.
-  STLDeleteContainerPairSecondPointers(input_files_.begin(),
-                                       input_files_.end());
-}
-
-bool InputFileManager::AsyncLoadFile(const LocationRange& origin,
-                                     const BuildSettings* build_settings,
-                                     const SourceFile& file_name,
-                                     const FileLoadCallback& callback,
-                                     Err* err) {
-  // Try not to schedule callbacks while holding the lock. All cases that don't
-  // want to schedule should return early. Otherwise, this will be scheduled
-  // after we leave the lock.
-  base::Closure schedule_this;
-  {
-    base::AutoLock lock(lock_);
-
-    InputFileMap::const_iterator found = input_files_.find(file_name);
-    if (found == input_files_.end()) {
-      // New file, schedule load.
-      InputFileData* data = new InputFileData(file_name);
-      data->scheduled_callbacks.push_back(callback);
-      input_files_[file_name] = data;
-
-      schedule_this = base::Bind(&InputFileManager::BackgroundLoadFile,
-                                 this,
-                                 origin,
-                                 build_settings,
-                                 file_name,
-                                 &data->file);
-    } else {
-      InputFileData* data = found->second;
-
-      // Prevent mixing async and sync loads. See SyncLoadFile for discussion.
-      if (data->sync_invocation) {
-        g_scheduler->FailWithError(Err(
-            origin, "Load type mismatch.",
-            "The file \"" + file_name.value() + "\" was previously loaded\n"
-            "synchronously (via an import) and now you're trying to load it "
-            "asynchronously\n(via a deps rule). This is a class 2 misdemeanor: "
-            "a single input file must\nbe loaded the same way each time to "
-            "avoid blowing my tiny, tiny mind."));
-        return false;
-      }
-
-      if (data->loaded) {
-        // Can just directly issue the callback on the background thread.
-        schedule_this = base::Bind(&InvokeFileLoadCallback, callback,
-                                   data->parsed_root.get());
-      } else {
-        // Load is pending on this file, schedule the invoke.
-        data->scheduled_callbacks.push_back(callback);
-        return true;
-      }
-    }
-  }
-  g_scheduler->pool()->PostWorkerTaskWithShutdownBehavior(
-      FROM_HERE, schedule_this,
-      base::SequencedWorkerPool::BLOCK_SHUTDOWN);
-  return true;
-}
-
-const ParseNode* InputFileManager::SyncLoadFile(
-    const LocationRange& origin,
-    const BuildSettings* build_settings,
-    const SourceFile& file_name,
-    Err* err) {
-  base::AutoLock lock(lock_);
-
-  InputFileData* data = NULL;
-  InputFileMap::iterator found = input_files_.find(file_name);
-  if (found == input_files_.end()) {
-    base::AutoUnlock unlock(lock_);
-
-    // Haven't seen this file yet, start loading right now.
-    data = new InputFileData(file_name);
-    data->sync_invocation = true;
-    input_files_[file_name] = data;
-
-    if (!LoadFile(origin, build_settings, file_name, &data->file, err))
-      return NULL;
-  } else {
-    // This file has either been loaded or is pending loading.
-    data = found->second;
-
-    if (!data->sync_invocation) {
-      // Don't allow mixing of sync and async loads. If an async load is
-      // scheduled and then a bunch of threads need to load it synchronously
-      // and block on it loading, it could deadlock or at least cause a lot
-      // of wasted CPU while those threads wait for the load to complete (which
-      // may be far back in the input queue).
-      //
-      // We could work around this by promoting the load to a sync load. This
-      // requires a bunch of extra code to either check flags and likely do
-      // extra locking (bad) or to just do both types of load on the file and
-      // deal with the race condition.
-      //
-      // I have no practical way to test this, and generally we should have
-      // all include files processed synchronously and all build files
-      // processed asynchronously, so it doesn't happen in practice.
-      *err = Err(
-          origin, "Load type mismatch.",
-          "The file \"" + file_name.value() + "\" was previously loaded\n"
-          "asynchronously (via a deps rule) and now you're trying to load it "
-          "synchronously.\nThis is a class 2 misdemeanor: a single input file "
-          "must be loaded the same way\neach time to avoid blowing my tiny, "
-          "tiny mind.");
-      return NULL;
-    }
-
-    if (!data->loaded) {
-      // Wait for the already-pending sync load to complete.
-      if (!data->completion_event)
-        data->completion_event.reset(new base::WaitableEvent(false, false));
-      {
-        base::AutoUnlock unlock(lock_);
-        data->completion_event->Wait();
-      }
-    }
-  }
-
-  // The other load could have failed. In this case that error will be printed
-  // to the console, but we need to return something here, so make up a
-  // dummy error.
-  if (!data->parsed_root)
-    *err = Err(origin, "File parse failed");
-  return data->parsed_root.get();
-}
-
-int InputFileManager::GetInputFileCount() const {
-  base::AutoLock lock(lock_);
-  return input_files_.size();
-}
-
-void InputFileManager::GetAllInputFileNames(
-    std::vector<SourceFile>* result) const {
-  base::AutoLock lock(lock_);
-  result->reserve(input_files_.size());
-  for (InputFileMap::const_iterator i = input_files_.begin();
-       i != input_files_.end(); ++i) {
-    result->push_back(i->second->file.name());
-  }
-}
-
-void InputFileManager::BackgroundLoadFile(const LocationRange& origin,
-                                          const BuildSettings* build_settings,
-                                          const SourceFile& name,
-                                          InputFile* file) {
-  Err err;
-  if (!LoadFile(origin, build_settings, name, file, &err))
-    g_scheduler->FailWithError(err);
-}
-
-bool InputFileManager::LoadFile(const LocationRange& origin,
-                                const BuildSettings* build_settings,
-                                const SourceFile& name,
-                                InputFile* file,
-                                Err* err) {
-  // Do all of this stuff outside the lock. We should not give out file
-  // pointers until the read is complete.
-  if (g_scheduler->verbose_logging())
-    g_scheduler->Log("Loading", name.value());
-
-  // Read.
-  base::FilePath primary_path = build_settings->GetFullPath(name);
-  if (!file->Load(primary_path)) {
-    if (!build_settings->secondary_source_path().empty()) {
-      // Fall back to secondary source tree.
-      base::FilePath secondary_path =
-          build_settings->GetFullPathSecondary(name);
-      if (!file->Load(secondary_path)) {
-        *err = Err(origin, "Can't load input file.",
-                   "Unable to load either \n" +
-                   FilePathToUTF8(primary_path) + " or \n" +
-                   FilePathToUTF8(secondary_path));
-        return false;
-      }
-    } else {
-      *err = Err(origin,
-                 "Unable to load \"" + FilePathToUTF8(primary_path) + "\".");
-      return false;
-    }
-  }
-
-  if (g_scheduler->verbose_logging())
-    g_scheduler->Log("Parsing", name.value());
-
-  // Tokenize.
-  std::vector<Token> tokens = Tokenizer::Tokenize(file, err);
-  if (err->has_error())
-    return false;
-
-  // Parse.
-  scoped_ptr<ParseNode> root = Parser::Parse(tokens, err);
-  if (err->has_error())
-    return false;
-  ParseNode* unowned_root = root.get();
-
-  std::vector<FileLoadCallback> callbacks;
-  {
-    base::AutoLock lock(lock_);
-    DCHECK(input_files_.find(name) != input_files_.end());
-
-    InputFileData* data = input_files_[name];
-    data->loaded = true;
-    data->tokens.swap(tokens);
-    data->parsed_root = root.Pass();
-
-    callbacks.swap(data->scheduled_callbacks);
-  }
-
-  // Run pending invocations. Theoretically we could schedule each of these
-  // separately to get some parallelism. But normally there will only be one
-  // item in the list, so that's extra overhead and complexity for no gain.
-  for (size_t i = 0; i < callbacks.size(); i++)
-    callbacks[i].Run(unowned_root);
-  return true;
-}
diff --git a/tools/gn/input_file_manager.h b/tools/gn/input_file_manager.h
deleted file mode 100644
index 0f708d5890f9..000000000000
--- a/tools/gn/input_file_manager.h
+++ /dev/null
@@ -1,123 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_INPUT_FILE_MANAGER_H_
-#define TOOLS_GN_INPUT_FILE_MANAGER_H_
-
-#include <set>
-#include <utility>
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/callback.h"
-#include "base/containers/hash_tables.h"
-#include "base/files/file_path.h"
-#include "base/memory/ref_counted.h"
-#include "base/synchronization/lock.h"
-#include "base/synchronization/waitable_event.h"
-#include "tools/gn/build_settings.h"
-#include "tools/gn/input_file.h"
-#include "tools/gn/parse_tree.h"
-#include "tools/gn/settings.h"
-
-class Err;
-class LocationRange;
-class ParseNode;
-class Token;
-
-// Manages loading and parsing files from disk. This doesn't actually have
-// any context for executing the results, so potentially multiple configs
-// could use the same input file (saving parsing).
-//
-// This class is threadsafe.
-//
-// InputFile objects must never be deleted while the program is running since
-// various state points into them.
-class InputFileManager : public base::RefCountedThreadSafe<InputFileManager> {
- public:
-  // Callback issued when a file is laoded. On auccess, the parse node will
-  // refer to the root block of the file. On failure, this will be NULL.
-  typedef base::Callback<void(const ParseNode*)> FileLoadCallback;
-
-  InputFileManager();
-
-  // Loads the given file and executes the callback on the worker pool.
-  //
-  // There are two types of errors. For errors known synchronously, the error
-  // will be set, it will return false, and no work will be scheduled.
-  //
-  // For parse errors and such that happen in the future, the error will be
-  // logged to the scheduler and the callback will be invoked with a null
-  // ParseNode pointer. The given |origin| will be blamed for the invocation.
-  bool AsyncLoadFile(const LocationRange& origin,
-                     const BuildSettings* build_settings,
-                     const SourceFile& file_name,
-                     const FileLoadCallback& callback,
-                     Err* err);
-
-  // Loads and parses the given file synchronously, returning the root block
-  // corresponding to the parsed result. On error, return NULL and the given
-  // Err is set.
-  const ParseNode* SyncLoadFile(const LocationRange& origin,
-                                const BuildSettings* build_settings,
-                                const SourceFile& file_name,
-                                Err* err);
-
-  int GetInputFileCount() const;
-
-  void GetAllInputFileNames(std::vector<SourceFile>* result) const;
-
- private:
-  friend class base::RefCountedThreadSafe<InputFileManager>;
-
-  struct InputFileData {
-    InputFileData(const SourceFile& file_name);
-    ~InputFileData();
-
-    // Don't touch this outside the lock until it's marked loaded.
-    InputFile file;
-
-    bool loaded;
-
-    bool sync_invocation;
-
-    // Lists all invocations that need to be executed when the file completes
-    // loading.
-    std::vector<FileLoadCallback> scheduled_callbacks;
-
-    // Event to signal when the load is complete (or fails). This is lazily
-    // created only when a thread is synchronously waiting for this load (which
-    // only happens for imports).
-    scoped_ptr<base::WaitableEvent> completion_event;
-
-    std::vector<Token> tokens;
-
-    // Null before the file is loaded or if loading failed.
-    scoped_ptr<ParseNode> parsed_root;
-  };
-
-  virtual ~InputFileManager();
-
-  void BackgroundLoadFile(const LocationRange& origin,
-                          const BuildSettings* build_settings,
-                          const SourceFile& name,
-                          InputFile* file);
-
-  // Loads the given file. On error, sets the Err and return false.
-  bool LoadFile(const LocationRange& origin,
-                const BuildSettings* build_settings,
-                const SourceFile& name,
-                InputFile* file,
-                Err* err);
-
-  mutable base::Lock lock_;
-
-  // Maps repo-relative filenames to the corresponding owned pointer.
-  typedef base::hash_map<SourceFile, InputFileData*> InputFileMap;
-  InputFileMap input_files_;
-
-  DISALLOW_COPY_AND_ASSIGN(InputFileManager);
-};
-
-#endif  // TOOLS_GN_INPUT_FILE_MANAGER_H_
diff --git a/tools/gn/item.cc b/tools/gn/item.cc
deleted file mode 100644
index 747183cbd082..000000000000
--- a/tools/gn/item.cc
+++ /dev/null
@@ -1,31 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/item.h"
-
-#include "base/logging.h"
-
-Item::Item(const Label& label) : label_(label) {
-}
-
-Item::~Item() {
-}
-
-Config* Item::AsConfig() { return NULL; }
-const Config* Item::AsConfig() const { return NULL; }
-Target* Item::AsTarget() { return NULL; }
-const Target* Item::AsTarget() const { return NULL; }
-Toolchain* Item::AsToolchain() { return NULL; }
-const Toolchain* Item::AsToolchain() const { return NULL; }
-
-std::string Item::GetItemTypeName() const {
-  if (AsConfig())
-    return "config";
-  if (AsTarget())
-    return "target";
-  if (AsToolchain())
-    return "toolchain";
-  NOTREACHED();
-  return "this thing that I have no idea what it is";
-}
diff --git a/tools/gn/item.h b/tools/gn/item.h
deleted file mode 100644
index aa715442e352..000000000000
--- a/tools/gn/item.h
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_ITEM_H_
-#define TOOLS_GN_ITEM_H_
-
-#include <string>
-
-#include "tools/gn/label.h"
-
-class Config;
-class Target;
-class Toolchain;
-
-// A named item (target, config, etc.) that participates in the dependency
-// graph.
-class Item {
- public:
-  Item(const Label& label);
-  virtual ~Item();
-
-  const Label& label() const { return label_; }
-
-  // Manual RTTI.
-  virtual Config* AsConfig();
-  virtual const Config* AsConfig() const;
-  virtual Target* AsTarget();
-  virtual const Target* AsTarget() const;
-  virtual Toolchain* AsToolchain();
-  virtual const Toolchain* AsToolchain() const;
-
-  // Returns a name like "target" or "config" for the type of item this is, to
-  // be used in logging and error messages.
-  std::string GetItemTypeName() const;
-
-  // Called when this item is resolved, meaning it and all of its dependents
-  // have no unresolved deps.
-  virtual void OnResolved() {}
-
- private:
-  Label label_;
-};
-
-#endif  // TOOLS_GN_ITEM_H_
diff --git a/tools/gn/item_node.cc b/tools/gn/item_node.cc
deleted file mode 100644
index 776a126b1903..000000000000
--- a/tools/gn/item_node.cc
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/item_node.h"
-
-#include <algorithm>
-
-#include "base/callback.h"
-#include "base/logging.h"
-#include "tools/gn/item.h"
-
-ItemNode::ItemNode(Item* i)
-    : state_(REFERENCED),
-      item_(i) {
-}
-
-ItemNode::~ItemNode() {
-}
-
-void ItemNode::AddDependency(ItemNode* node) {
-  if (direct_dependencies_.find(node) != direct_dependencies_.end())
-    return;  // Already have this dep.
-  direct_dependencies_.insert(node);
-
-  if (node->state() != RESOLVED) {
-    // Wire up the pending resolution info.
-    unresolved_dependencies_.insert(node);
-    node->waiting_on_resolution_.insert(this);
-  }
-}
-
-void ItemNode::MarkDirectDependencyResolved(ItemNode* node) {
-  DCHECK(unresolved_dependencies_.find(node) != unresolved_dependencies_.end());
-  unresolved_dependencies_.erase(node);
-}
-
-void ItemNode::SwapOutWaitingDependencySet(ItemNodeSet* out_set) {
-  waiting_on_resolution_.swap(*out_set);
-}
-
-void ItemNode::SetGenerated() {
-  state_ = GENERATED;
-}
-
-void ItemNode::SetResolved() {
-  state_ = RESOLVED;
-
-  if (!resolved_closure_.is_null())
-    resolved_closure_.Run();
-}
diff --git a/tools/gn/item_node.h b/tools/gn/item_node.h
deleted file mode 100644
index 297010f2f739..000000000000
--- a/tools/gn/item_node.h
+++ /dev/null
@@ -1,119 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_ITEM_NODE_H_
-#define TOOLS_GN_ITEM_NODE_H_
-
-#include <set>
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/callback.h"
-#include "base/memory/scoped_ptr.h"
-#include "tools/gn/location.h"
-
-class Item;
-
-// Represents a node in the depdency tree. It references an Item which is
-// the actual thing.
-//
-// The items and nodes are split apart so that the ItemTree can manipulate
-// the dependencies one one thread while the Item itself is been modified on
-// another.
-class ItemNode {
- public:
-  enum State {
-    // Another item has referenced this one by name, but we have not yet
-    // encountered this item to know what it is.
-    REFERENCED,
-
-    // This item has been defined but some of the dependencies it references
-    // have not been.
-    GENERATED,
-
-    // All of this item's transitive dependencies have been found and
-    // resolved.
-    RESOLVED,
-  };
-
-  typedef std::set<ItemNode*> ItemNodeSet;
-
-  // Takes ownership of the pointer.
-  // Initial state will be REFERENCED.
-  ItemNode(Item* i);
-  ~ItemNode();
-
-  State state() const { return state_; }
-
-  // This closure will be executed when the item is resolved.
-  void set_resolved_closure(const base::Closure& closure) {
-    resolved_closure_ = closure;
-  }
-
-  const Item* item() const { return item_.get(); }
-  Item* item() { return item_.get(); }
-
-  // Where this was created from, which might be when it was generated or
-  // when it was first referenced from another target.
-  const LocationRange& originally_referenced_from_here() const {
-    return originally_referenced_from_here_;
-  }
-  void set_originally_referenced_from_here(const LocationRange& r) {
-    originally_referenced_from_here_ = r;
-  }
-
-  // Where this was generated from. This will be empty for items that have
-  // been referenced but not generated. Note that this has to be one the
-  // ItemNode because it can be changing from multiple threads and we need
-  // to be sure that access is serialized.
-  const LocationRange& generated_from_here() const {
-    return generated_from_here_;
-  }
-  void set_generated_from_here(const LocationRange& r) {
-    generated_from_here_ = r;
-  }
-
-  const ItemNodeSet& direct_dependencies() const {
-    return direct_dependencies_;
-  }
-  const ItemNodeSet& unresolved_dependencies() const {
-    return unresolved_dependencies_;
-  }
-
-  void AddDependency(ItemNode* node);
-
-  // Removes the given dependency from the unresolved list. Does not do
-  // anything else to update waiters.
-  void MarkDirectDependencyResolved(ItemNode* node);
-
-  // Destructively retrieve the set of waiting nodes.
-  void SwapOutWaitingDependencySet(ItemNodeSet* out_set);
-
-  void SetGenerated();
-  void SetResolved();
-
- private:
-  State state_;
-  scoped_ptr<Item> item_;
-
-  LocationRange originally_referenced_from_here_;
-  LocationRange generated_from_here_;
-
-  // What to run when this item is resolved.
-  base::Closure resolved_closure_;
-
-  // Everything this item directly depends on.
-  ItemNodeSet direct_dependencies_;
-
-  // Unresolved things this item directly depends on.
-  ItemNodeSet unresolved_dependencies_;
-
-  // These items are waiting on us to be resolved before they can be
-  // resolved. This is the backpointer for unresolved_dependencies_.
-  ItemNodeSet waiting_on_resolution_;
-
-  DISALLOW_COPY_AND_ASSIGN(ItemNode);
-};
-
-#endif  // TOOLS_GN_ITEM_NODE_H_
diff --git a/tools/gn/item_tree.cc b/tools/gn/item_tree.cc
deleted file mode 100644
index a4d11812e9f3..000000000000
--- a/tools/gn/item_tree.cc
+++ /dev/null
@@ -1,193 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/item_tree.h"
-
-#include <algorithm>
-
-#include "base/stl_util.h"
-#include "tools/gn/err.h"
-#include "tools/gn/item.h"
-#include "tools/gn/item_node.h"
-
-namespace {
-
-// Recursively looks in the tree for a given node, returning true if it
-// was found in the dependecy graph. This is used to see if a given node
-// participates in a cycle.
-//
-// Note that "look_for" and "search_in" will be the same node when starting the
-// search, so we don't want to return true in that case.
-//
-// If a cycle is found, the return value will be true and the cycle vector will
-// be filled with the path (in reverse order).
-bool RecursiveFindCycle(const ItemNode* look_for,
-                        const ItemNode* search_in,
-                        std::vector<const ItemNode*>* cycle) {
-  const ItemNode::ItemNodeSet& unresolved =
-      search_in->unresolved_dependencies();
-  for (ItemNode::ItemNodeSet::const_iterator i = unresolved.begin();
-       i != unresolved.end(); ++i) {
-    if (*i == look_for) {
-      cycle->push_back(*i);
-      return true;
-    }
-
-    if (RecursiveFindCycle(look_for, *i, cycle)) {
-      // Found a cycle inside this one, record our path and return.
-      cycle->push_back(*i);
-      return true;
-    }
-  }
-  return false;
-}
-
-}  // namespace
-
-ItemTree::ItemTree() {
-}
-
-ItemTree::~ItemTree() {
-  STLDeleteContainerPairSecondPointers(items_.begin(), items_.end());
-}
-
-ItemNode* ItemTree::GetExistingNodeLocked(const Label& label) {
-  lock_.AssertAcquired();
-  StringToNodeHash::iterator found = items_.find(label);
-  if (found == items_.end())
-    return NULL;
-  return found->second;
-}
-
-void ItemTree::AddNodeLocked(ItemNode* node) {
-  lock_.AssertAcquired();
-  DCHECK(items_.find(node->item()->label()) == items_.end());
-  items_[node->item()->label()] = node;
-}
-
-Err ItemTree::MarkItemGeneratedLocked(const Label& label) {
-  lock_.AssertAcquired();
-  DCHECK(items_.find(label) != items_.end());
-
-  ItemNode* node = items_[label];
-
-  if (!node->unresolved_dependencies().empty()) {
-    // Still some pending dependencies, wait for those to be resolved.
-    node->SetGenerated();
-    return Err();
-  }
-  return MarkItemResolvedLocked(node);
-}
-
-void ItemTree::GetAllItemsLocked(std::vector<const Item*>* dest) const {
-  lock_.AssertAcquired();
-  dest->reserve(items_.size());
-  for (StringToNodeHash::const_iterator i = items_.begin();
-       i != items_.end(); ++i) {
-    dest->push_back(i->second->item());
-  }
-}
-
-Err ItemTree::CheckForBadItems() const {
-  base::AutoLock lock(lock_);
-
-  // Look for errors where we find a GENERATED node that refers to a REFERENCED
-  // one. There may be other nodes depending on the GENERATED one, but listing
-  // all of those isn't helpful, we want to find the broken link.
-  //
-  // This finds normal "missing dependency" errors but does not find circular
-  // dependencies because in this case all items in the cycle will be GENERATED
-  // but none will be resolved. If this happens, we'll check explicitly for
-  // that below.
-  std::vector<const ItemNode*> bad_nodes;
-  std::string depstring;
-  for (StringToNodeHash::const_iterator i = items_.begin();
-       i != items_.end(); ++i) {
-    const ItemNode* src = i->second;
-
-    if (src->state() == ItemNode::GENERATED) {
-      bad_nodes.push_back(src);
-
-      // Check dependencies.
-      for (ItemNode::ItemNodeSet::const_iterator dest =
-               src->unresolved_dependencies().begin();
-          dest != src->unresolved_dependencies().end();
-          ++dest) {
-        if ((*dest)->state() == ItemNode::REFERENCED) {
-          depstring += "\"" + src->item()->label().GetUserVisibleName(false) +
-              "\" needs " + (*dest)->item()->GetItemTypeName() +
-              " \"" + (*dest)->item()->label().GetUserVisibleName(false) +
-              "\"\n";
-        }
-      }
-    }
-  }
-
-  if (!bad_nodes.empty() && depstring.empty()) {
-    // Our logic above found a bad node but didn't identify the problem. This
-    // normally means a circular dependency.
-    depstring = CheckForCircularDependenciesLocked(bad_nodes);
-    if (depstring.empty()) {
-      // Something's very wrong, just dump out the bad nodes.
-      depstring = "I have no idea what went wrong, but these are unresolved, "
-          "possible due to an\ninternal error:";
-      for (size_t i = 0; i < bad_nodes.size(); i++) {
-        depstring += "\n\"" +
-            bad_nodes[i]->item()->label().GetUserVisibleName(false) + "\"";
-      }
-    }
-  }
-
-  if (depstring.empty())
-    return Err();
-  return Err(Location(), "Unresolved dependencies.", depstring);
-}
-
-Err ItemTree::MarkItemResolvedLocked(ItemNode* node) {
-  node->SetResolved();
-  node->item()->OnResolved();
-
-  // Now update our waiters, pushing the "resolved" bit.
-  ItemNode::ItemNodeSet waiting;
-  node->SwapOutWaitingDependencySet(&waiting);
-  for (ItemNode::ItemNodeSet::iterator i = waiting.begin();
-       i != waiting.end(); ++i) {
-    ItemNode* waiter = *i;
-
-    // Our node should be unresolved in the waiter.
-    DCHECK(waiter->unresolved_dependencies().find(node) !=
-           waiter->unresolved_dependencies().end());
-    waiter->MarkDirectDependencyResolved(node);
-
-    // Recursively mark nodes as resolved.
-    if (waiter->state() == ItemNode::GENERATED &&
-        waiter->unresolved_dependencies().empty()) {
-      Err err = MarkItemResolvedLocked(waiter);
-      if (err.has_error())
-        return err;
-    }
-  }
-
-  return Err();
-}
-
-std::string ItemTree::CheckForCircularDependenciesLocked(
-    const std::vector<const ItemNode*>& bad_nodes) const {
-  std::vector<const ItemNode*> cycle;
-  if (!RecursiveFindCycle(bad_nodes[0], bad_nodes[0], &cycle))
-    return std::string();  // Didn't find a cycle, something else is wrong.
-
-  cycle.push_back(bad_nodes[0]);
-  std::string ret = "There is a dependency cycle:";
-
-  // Walk backwards since the dependency arrows point in the reverse direction.
-  for (int i = static_cast<int>(cycle.size()) - 1; i >= 0; i--) {
-    ret += "\n  \"" + cycle[i]->item()->label().GetUserVisibleName(false) +
-        "\"";
-    if (i != 0)
-      ret += " ->";
-  }
-
-  return ret;
-}
diff --git a/tools/gn/item_tree.h b/tools/gn/item_tree.h
deleted file mode 100644
index f2ac4ae5779e..000000000000
--- a/tools/gn/item_tree.h
+++ /dev/null
@@ -1,69 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_ITEM_TREE_H_
-#define TOOLS_GN_ITEM_TREE_H_
-
-#include "base/containers/hash_tables.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/synchronization/lock.h"
-#include "tools/gn/label.h"
-
-class Err;
-class Item;
-class ItemNode;
-
-// Represents the full dependency tree if labeled items in the system.
-// Generally you will interact with this through the target manager, etc.
-class ItemTree {
- public:
-  ItemTree();
-  ~ItemTree();
-
-  // This lock must be held when calling the "Locked" functions below.
-  base::Lock& lock() { return lock_; }
-
-  // Returns NULL if the item is not found.
-  //
-  // The lock must be held.
-  ItemNode* GetExistingNodeLocked(const Label& label);
-
-  // There must not be an item with this label in the tree already. Takes
-  // ownership of the pointer.
-  //
-  // The lock must be held.
-  void AddNodeLocked(ItemNode* node);
-
-  // Mark the given item as being generated. If it has no unresolved
-  // dependencies, it will be marked resolved, and the resolved state will be
-  // recursively pushed into the dependency tree. Returns an error if there was
-  // an error.
-  Err MarkItemGeneratedLocked(const Label& label);
-
-  // Fills the given vector with all known items.
-  void GetAllItemsLocked(std::vector<const Item*>* dest) const;
-
-  // Returns an error if there are unresolved dependencies, or no error if
-  // there aren't.
-  //
-  // The lock should not be held.
-  Err CheckForBadItems() const;
-
- private:
-  Err MarkItemResolvedLocked(ItemNode* node);
-
-  // Given a set of unresolved nodes, looks for cycles and returns the error
-  // message describing any cycles it found.
-  std::string CheckForCircularDependenciesLocked(
-      const std::vector<const ItemNode*>& bad_nodes) const;
-
-  mutable base::Lock lock_;
-
-  typedef base::hash_map<Label, ItemNode*> StringToNodeHash;
-  StringToNodeHash items_;  // Owning pointer.
-
-  DISALLOW_COPY_AND_ASSIGN(ItemTree);
-};
-
-#endif  // TOOLS_GN_ITEM_TREE_H_
diff --git a/tools/gn/label.cc b/tools/gn/label.cc
deleted file mode 100644
index f9b48da3c77e..000000000000
--- a/tools/gn/label.cc
+++ /dev/null
@@ -1,263 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/label.h"
-
-#include "base/logging.h"
-#include "tools/gn/err.h"
-#include "tools/gn/parse_tree.h"
-#include "tools/gn/value.h"
-
-namespace {
-
-// We print user visible label names with no trailing slash after the
-// directory name.
-std::string DirWithNoTrailingSlash(const SourceDir& dir) {
-  // Be careful not to trim if the input is just "/" or "//".
-  if (dir.value().size() > 2)
-    return dir.value().substr(0, dir.value().size() - 1);
-  return dir.value();
-}
-
-// Given the separate-out input (everything before the colon) in the dep rule,
-// computes the final build rule. Sets err on failure. On success,
-// |*used_implicit| will be set to whether the implicit current directory was
-// used. The value is used only for generating error messages.
-bool ComputeBuildLocationFromDep(const Value& input_value,
-                                 const SourceDir& current_dir,
-                                 const base::StringPiece& input,
-                                 SourceDir* result,
-                                 Err* err) {
-  // No rule, use the current locaton.
-  if (input.empty()) {
-    *result = current_dir;
-    return true;
-  }
-
-  // Don't allow directories to start with a single slash. All labels must be
-  // in the source root.
-  if (input[0] == '/' && (input.size() == 1 || input[1] != '/')) {
-    *err = Err(input_value, "Label can't start with a single slash",
-        "Labels must be either relative (no slash at the beginning) or be "
-        "absolute\ninside the source root (two slashes at the beginning).");
-    return false;
-  }
-
-  *result = current_dir.ResolveRelativeDir(input);
-  return true;
-}
-
-// Given the separated-out target name (after the colon) computes the final
-// name, using the implicit name from the previously-generated
-// computed_location if necessary. The input_value is used only for generating
-// error messages.
-bool ComputeTargetNameFromDep(const Value& input_value,
-                              const SourceDir& computed_location,
-                              const base::StringPiece& input,
-                              std::string* result,
-                              Err* err) {
-  if (!input.empty()) {
-    // Easy case: input is specified, just use it.
-    result->assign(input.data(), input.size());
-    return true;
-  }
-
-  const std::string& loc = computed_location.value();
-
-  // Use implicit name. The path will be "//", "//base/", "//base/i18n/", etc.
-  if (loc.size() <= 1) {
-    *err = Err(input_value, "This dependency name is empty");
-    return false;
-  }
-
-  size_t next_to_last_slash = loc.rfind('/', loc.size() - 2);
-  DCHECK(next_to_last_slash != std::string::npos);
-  result->assign(&loc[next_to_last_slash + 1],
-                 loc.size() - next_to_last_slash - 2);
-  return true;
-}
-
-// The original value is used only for error reporting, use the |input| as the
-// input to this function (which may be a substring of the original value when
-// we're parsing toolchains.
-//
-// If the output toolchain vars are NULL, then we'll report an error if we
-// find a toolchain specified (this is used when recursively parsing toolchain
-// labels which themselves can't have toolchain specs).
-//
-// We assume that the output variables are initialized to empty so we don't
-// write them unless we need them to contain something.
-//
-// Returns true on success. On failure, the out* variables might be written to
-// but shouldn't be used.
-bool Resolve(const SourceDir& current_dir,
-             const Label& current_toolchain,
-             const Value& original_value,
-             const base::StringPiece& input,
-             SourceDir* out_dir,
-             std::string* out_name,
-             SourceDir* out_toolchain_dir,
-             std::string* out_toolchain_name,
-             Err* err) {
-  // To workaround the problem that StringPiece operator[] doesn't return a ref.
-  const char* input_str = input.data();
-
-  size_t path_separator = input.find_first_of(":(");
-  base::StringPiece location_piece;
-  base::StringPiece name_piece;
-  base::StringPiece toolchain_piece;
-  if (path_separator == std::string::npos) {
-    location_piece = input;
-    // Leave name & toolchain piece null.
-  } else {
-    location_piece = base::StringPiece(&input_str[0], path_separator);
-
-    size_t toolchain_separator = input.find('(', path_separator);
-    if (toolchain_separator == std::string::npos) {
-      name_piece = base::StringPiece(&input_str[path_separator + 1],
-                                     input.size() - path_separator - 1);
-      // Leave location piece null.
-    } else if (!out_toolchain_dir) {
-      // Toolchain specified but not allows in this context.
-      *err = Err(original_value, "Toolchain has a toolchain.",
-          "Your toolchain definition (inside the parens) seems to itself "
-          "have a\ntoolchain. Don't do this.");
-      return false;
-    } else {
-      // Name piece is everything between the two separators. Note that the
-      // separators may be the same (e.g. "//foo(bar)" which means empty name.
-      if (toolchain_separator > path_separator) {
-        name_piece = base::StringPiece(
-            &input_str[path_separator + 1],
-            toolchain_separator - path_separator - 1);
-      }
-
-      // Toolchain name should end in a ) and this should be the end of the
-      // string.
-      if (input[input.size() - 1] != ')') {
-        *err = Err(original_value, "Bad toolchain name.",
-            "Toolchain name must end in a \")\" at the end of the label.");
-        return false;
-      }
-
-      // Subtract off the two parens to just get the toolchain name.
-      toolchain_piece = base::StringPiece(
-          &input_str[toolchain_separator + 1],
-          input.size() - toolchain_separator - 2);
-    }
-  }
-
-  // Everything before the separator is the filename.
-  // We allow three cases:
-  //   Absolute:                "//foo:bar" -> /foo:bar
-  //   Target in current file:  ":foo"     -> <currentdir>:foo
-  //   Path with implicit name: "/foo"     -> /foo:foo
-  if (location_piece.empty() && name_piece.empty()) {
-    // Can't use both implicit filename and name (":").
-    *err = Err(original_value, "This doesn't specify a dependency.");
-    return false;
-  }
-
-  if (!ComputeBuildLocationFromDep(original_value, current_dir, location_piece,
-                                   out_dir, err))
-    return false;
-
-  if (!ComputeTargetNameFromDep(original_value, *out_dir, name_piece,
-                                out_name, err))
-    return false;
-
-  // Last, do the toolchains.
-  if (out_toolchain_dir) {
-    // Handle empty toolchain strings. We don't allow normal labels to be
-    // empty so we can't allow the recursive call of this function to do this
-    // check.
-    if (toolchain_piece.empty()) {
-      *out_toolchain_dir = current_toolchain.dir();
-      *out_toolchain_name = current_toolchain.name();
-      return true;
-    } else {
-      return Resolve(current_dir, current_toolchain,
-                     original_value, toolchain_piece,
-                     out_toolchain_dir, out_toolchain_name, NULL, NULL, err);
-    }
-  }
-  return true;
-}
-
-}  // namespace
-
-Label::Label() {
-}
-
-Label::Label(const SourceDir& dir,
-             const base::StringPiece& name,
-             const SourceDir& toolchain_dir,
-             const base::StringPiece& toolchain_name)
-    : dir_(dir),
-      toolchain_dir_(toolchain_dir) {
-  name_.assign(name.data(), name.size());
-  toolchain_name_.assign(toolchain_name.data(), toolchain_name.size());
-}
-
-Label::~Label() {
-}
-
-// static
-Label Label::Resolve(const SourceDir& current_dir,
-                     const Label& current_toolchain,
-                     const Value& input,
-                     Err* err) {
-  Label ret;
-  if (input.type() != Value::STRING) {
-    *err = Err(input, "Dependency is not a string.");
-    return ret;
-  }
-  const std::string& input_string = input.string_value();
-  if (input_string.empty()) {
-    *err = Err(input, "Dependency string is empty.");
-    return ret;
-  }
-
-  if (!::Resolve(current_dir, current_toolchain, input, input_string,
-                 &ret.dir_, &ret.name_,
-                 &ret.toolchain_dir_, &ret.toolchain_name_,
-                 err))
-    return Label();
-  return ret;
-}
-
-Label Label::GetToolchainLabel() const {
-  return Label(toolchain_dir_, toolchain_name_,
-               SourceDir(), base::StringPiece());
-}
-
-std::string Label::GetUserVisibleName(bool include_toolchain) const {
-  std::string ret;
-  ret.reserve(dir_.value().size() + name_.size() + 1);
-
-  if (dir_.is_null())
-    return ret;
-
-  ret = DirWithNoTrailingSlash(dir_);
-  ret.push_back(':');
-  ret.append(name_);
-
-  if (include_toolchain) {
-    ret.push_back('(');
-    if (!toolchain_dir_.is_null() && !toolchain_name_.empty()) {
-      ret.append(DirWithNoTrailingSlash(toolchain_dir_));
-      ret.push_back(':');
-      ret.append(toolchain_name_);
-    }
-    ret.push_back(')');
-  }
-  return ret;
-}
-
-std::string Label::GetUserVisibleName(const Label& default_toolchain) const {
-  bool include_toolchain =
-      default_toolchain.dir() != toolchain_dir_ ||
-      default_toolchain.name() != toolchain_name_;
-  return GetUserVisibleName(include_toolchain);
-}
diff --git a/tools/gn/label.h b/tools/gn/label.h
deleted file mode 100644
index b31117a2b9b4..000000000000
--- a/tools/gn/label.h
+++ /dev/null
@@ -1,116 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_LABEL_H_
-#define TOOLS_GN_LABEL_H_
-
-#include "base/containers/hash_tables.h"
-#include "build/build_config.h"
-#include "tools/gn/source_dir.h"
-
-class Err;
-class Value;
-
-// A label represents the name of a target or some other named thing in
-// the source path. The label is always absolute and always includes a name
-// part, so it starts with a slash, and has one colon.
-class Label {
- public:
-  Label();
-
-  // Makes a label given an already-separate out path and name.
-  // See also Resolve().
-  Label(const SourceDir& dir,
-        const base::StringPiece& name,
-        const SourceDir& toolchain_dir,
-        const base::StringPiece& toolchain_name);
-  ~Label();
-
-  // Resolives a string from a build file that may be relative to the
-  // current directory into a fully qualified label. On failure returns an
-  // is_null() label and sets the error.
-  static Label Resolve(const SourceDir& current_dir,
-                       const Label& current_toolchain,
-                       const Value& input,
-                       Err* err);
-
-  bool is_null() const { return dir_.is_null(); }
-
-  const SourceDir& dir() const { return dir_; }
-  const std::string& name() const { return name_; }
-
-  const SourceDir& toolchain_dir() const { return toolchain_dir_; }
-  const std::string& toolchain_name() const { return toolchain_name_; }
-  Label GetToolchainLabel() const;
-
-  // Formats this label in a way that we can present to the user or expose to
-  // other parts of the system. SourceDirs end in slashes, but the user
-  // expects names like "//chrome/renderer:renderer_config" when printed. The
-  // toolchain is optionally included.
-  std::string GetUserVisibleName(bool include_toolchain) const;
-
-  // Like the above version, but automatically includes the toolchain if it's
-  // not the default one. Normally the user only cares about the toolchain for
-  // non-default ones, so this can make certain output more clear.
-  std::string GetUserVisibleName(const Label& default_toolchain) const;
-
-  bool operator==(const Label& other) const {
-    return name_ == other.name_ && dir_ == other.dir_ &&
-           toolchain_dir_ == other.toolchain_dir_ &&
-           toolchain_name_ == other.toolchain_name_;
-  }
-  bool operator!=(const Label& other) const {
-    return !operator==(other);
-  }
-  bool operator<(const Label& other) const {
-    // TODO(brettw) could be optimized to avoid an extra full string check
-    // (one for operator==, one for <).
-    if (dir_ != other.dir_)
-      return dir_ < other.dir_;
-    if (name_ != other.name_)
-      return name_ < other.name_;
-    if (toolchain_dir_ != other.toolchain_dir_)
-      return toolchain_dir_ < other.toolchain_dir_;
-    return toolchain_name_ < other.toolchain_name_;
-  }
-
-  // Returns true if the toolchain dir/name of this object matches some
-  // other object.
-  bool ToolchainsEqual(const Label& other) const {
-    return toolchain_dir_ == other.toolchain_dir_ &&
-           toolchain_name_ == other.toolchain_name_;
-  }
-
- private:
-  SourceDir dir_;
-  std::string name_;
-
-  SourceDir toolchain_dir_;
-  std::string toolchain_name_;
-};
-
-namespace BASE_HASH_NAMESPACE {
-
-#if defined(COMPILER_GCC)
-template<> struct hash<Label> {
-  std::size_t operator()(const Label& v) const {
-    hash<std::string> stringhash;
-    return ((stringhash(v.dir().value()) * 131 +
-             stringhash(v.name())) * 131 +
-            stringhash(v.toolchain_dir().value())) * 131 +
-           stringhash(v.toolchain_name());
-  }
-};
-#elif defined(COMPILER_MSVC)
-inline size_t hash_value(const Label& v) {
-  return ((hash_value(v.dir().value()) * 131 +
-           hash_value(v.name())) * 131 +
-          hash_value(v.toolchain_dir().value())) * 131 +
-         hash_value(v.toolchain_name());
-}
-#endif  // COMPILER...
-
-}  // namespace BASE_HASH_NAMESPACE
-
-#endif  // TOOLS_GN_LABEL_H_
diff --git a/tools/gn/label_unittest.cc b/tools/gn/label_unittest.cc
deleted file mode 100644
index 74eb3da9e80c..000000000000
--- a/tools/gn/label_unittest.cc
+++ /dev/null
@@ -1,88 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "testing/gtest/include/gtest/gtest.h"
-#include "tools/gn/err.h"
-#include "tools/gn/label.h"
-#include "tools/gn/value.h"
-
-namespace {
-
-struct ParseDepStringCase {
-  const char* cur_dir;
-  const char* str;
-  bool success;
-  const char* expected_dir;
-  const char* expected_name;
-  const char* expected_toolchain_dir;
-  const char* expected_toolchain_name;
-};
-
-}  // namespace
-
-TEST(Label, Resolve) {
-  ParseDepStringCase cases[] = {
-      // cur         input                        succ   expected dir          name    tc dir    tc name
-      { "//chrome/", "",                          false, "",                   "",     "",       "" },
-      { "//chrome/", "/",                         false, "",                   "",     "",       "" },
-      { "//chrome/", ":",                         false, "",                   "",     "",       "" },
-      { "//chrome/", "/:",                        false, "",                   "",     "",       "" },
-      { "//chrome/", "blah",                      true,  "//chrome/blah/",     "blah", "//t/",   "d" },
-      { "//chrome/", "blah:bar",                  true,  "//chrome/blah/",     "bar",  "//t/",   "d" },
-      // No single-leading slash.
-      { "//chrome/", "/chrome:bar",               false, "",                   "",     "",       "" },
-      // No trailing slash.
-      { "//chrome/", "/chrome/:bar",              false, "",                   "",     "",       "" },
-      // Refers to root dir.
-      { "//chrome/", "//:bar",                    true,  "//",                 "bar",  "//t/",   "d" },
-      // Implicit directory
-      { "//chrome/", ":bar",                      true,  "//chrome/",          "bar",  "//t/",   "d" },
-      { "//chrome/renderer/", ":bar",             true,  "//chrome/renderer/", "bar",  "//t/",   "d" },
-      // Implicit names.
-      { "//chrome/", "//base",                    true,  "//base/",            "base", "//t/",   "d" },
-      { "//chrome/", "//base/i18n",               true,  "//base/i18n/",       "i18n", "//t/",   "d" },
-      { "//chrome/", "//base/i18n:foo",           true,  "//base/i18n/",       "foo",  "//t/",   "d" },
-      // Toolchain parsing.
-      { "//chrome/", "//chrome:bar(//t:n)",       true,  "//chrome/",          "bar",  "//t/",   "n" },
-      { "//chrome/", "//chrome:bar(//t)",         true,  "//chrome/",          "bar",  "//t/",   "t" },
-      { "//chrome/", "//chrome:bar(//t:)",        true,  "//chrome/",          "bar",  "//t/",   "t" },
-      { "//chrome/", "//chrome:bar()",            true,  "//chrome/",          "bar",  "//t/",   "d" },
-      { "//chrome/", "//chrome:bar(foo)",         true,  "//chrome/",          "bar",  "//chrome/foo/", "foo" },
-      { "//chrome/", "//chrome:bar(:foo)",        true,  "//chrome/",          "bar",  "//chrome/",     "foo" },
-      // TODO(brettw) it might be nice to make this an error:
-      //{ "//chrome/", "//chrome:bar())",           false, "",                   "",     "",       "" },
-      { "//chrome/", "//chrome:bar(//t:bar(tc))", false, "",                   "",     "",       "" },
-      { "//chrome/", "//chrome:bar(()",           false, "",                   "",     "",       "" },
-      { "//chrome/", "(t:b)",                     false, "",                   "",     "",       "" },
-      { "//chrome/", ":bar(//t/b)",               true,  "//chrome/",          "bar",  "//t/b/", "b" },
-      { "//chrome/", ":bar(/t/b)",                false, "",                   "",     "",       "" },
-      { "//chrome/", ":bar(t/b)",                 true,  "//chrome/",          "bar",  "//chrome/t/b/", "b" },
-  };
-
-  Label default_toolchain(SourceDir("//t/"), "d",
-                          SourceDir(), std::string());
-
-  for (size_t i = 0; i < ARRAYSIZE_UNSAFE(cases); i++) {
-    const ParseDepStringCase& cur = cases[i];
-
-    std::string location, name;
-    Err err;
-    Value v(NULL, Value::STRING);
-    v.string_value() = cur.str;
-    Label result =
-        Label::Resolve(SourceDir(cur.cur_dir), default_toolchain, v, &err);
-    EXPECT_EQ(cur.success, !err.has_error()) << i << " " << cur.str;
-    if (!err.has_error() && cur.success) {
-      EXPECT_EQ(cur.expected_dir, result.dir().value())
-          << i << " " << cur.str;
-      EXPECT_EQ(cur.expected_name, result.name())
-          << i << " " << cur.str;
-      EXPECT_EQ(cur.expected_toolchain_dir,
-                result.toolchain_dir().value())
-          << i << " " << cur.str;
-      EXPECT_EQ(cur.expected_toolchain_name, result.toolchain_name())
-          << i << " " << cur.str;
-    }
-  }
-}
diff --git a/tools/gn/location.h b/tools/gn/location.h
deleted file mode 100644
index 20551256e141..000000000000
--- a/tools/gn/location.h
+++ /dev/null
@@ -1,77 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_LOCATION_H_
-#define TOOLS_GN_LOCATION_H_
-
-#include <algorithm>
-
-#include "base/logging.h"
-
-class InputFile;
-
-// Represents a place in a source file. Used for error reporting.
-class Location {
- public:
-  Location()
-      : file_(NULL),
-        line_number_(-1),
-        char_offset_(-1) {
-  }
-  Location(const InputFile* file, int line_number, int char_offset)
-      : file_(file),
-        line_number_(line_number),
-        char_offset_(char_offset) {
-  }
-
-  const InputFile* file() const { return file_; }
-  int line_number() const { return line_number_; }
-  int char_offset() const { return char_offset_; }
-
-  bool operator==(const Location& other) const {
-    return other.file_ == file_ &&
-           other.line_number_ == line_number_ &&
-           other.char_offset_ == char_offset_;
-  }
-
-  bool operator<(const Location& other) const {
-    DCHECK(file_ == other.file_);
-    if (line_number_ != other.line_number_)
-      return line_number_ < other.line_number_;
-    return char_offset_ < other.char_offset_;
-  }
-
- private:
-  const InputFile* file_;  // Null when unset.
-  int line_number_;  // -1 when unset.
-  int char_offset_;  // -1 when unset.
-};
-
-// Represents a range in a source file. Used for error reporting.
-// The end is exclusive i.e. [begin, end)
-class LocationRange {
- public:
-  LocationRange() {}
-  LocationRange(const Location& begin, const Location& end)
-      : begin_(begin),
-        end_(end) {
-    DCHECK(begin_.file() == end_.file());
-  }
-
-  const Location& begin() const { return begin_; }
-  const Location& end() const { return end_; }
-
-  LocationRange Union(const LocationRange& other) const {
-    DCHECK(begin_.file() == other.begin_.file());
-    return LocationRange(
-        begin_ < other.begin_ ? begin_ : other.begin_,
-        end_ < other.end_ ? other.end_ : end_);
-  }
-
- private:
-  Location begin_;
-  Location end_;
-};
-
-#endif  // TOOLS_GN_LOCATION_H_
diff --git a/tools/gn/ninja_build_writer.cc b/tools/gn/ninja_build_writer.cc
deleted file mode 100644
index a63765cd3aaf..000000000000
--- a/tools/gn/ninja_build_writer.cc
+++ /dev/null
@@ -1,165 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/ninja_build_writer.h"
-
-#include <fstream>
-
-#include "base/command_line.h"
-#include "base/file_util.h"
-#include "base/process/process_handle.h"
-#include "base/strings/utf_string_conversions.h"
-#include "build/build_config.h"
-#include "tools/gn/build_settings.h"
-#include "tools/gn/filesystem_utils.h"
-#include "tools/gn/input_file_manager.h"
-#include "tools/gn/scheduler.h"
-#include "tools/gn/target.h"
-
-#if defined(OS_WIN)
-#include <windows.h>
-#endif
-
-namespace {
-
-std::string GetSelfInvocationCommand(const BuildSettings* build_settings) {
-#if defined(OS_WIN)
-  wchar_t module[MAX_PATH];
-  GetModuleFileName(NULL, module, MAX_PATH);
-  //result = "\"" + WideToUTF8(module) + "\"";
-  base::FilePath executable(module);
-#elif defined(OS_MACOSX)
-  // FIXME(brettw) write this on Mac!
-  base::FilePath executable("gn");
-#else
-  base::FilePath executable =
-      base::GetProcessExecutablePath(base::GetCurrentProcessHandle());
-#endif
-
-/*
-  // Append the root path.
-  CommandLine* cmdline = CommandLine::ForCurrentProcess();
-  result += " --root=\"" + FilePathToUTF8(settings->root_path()) + "\"";
-*/
-
-  CommandLine cmdline(executable);
-  cmdline.AppendSwitchPath("--root", build_settings->root_path());
-
-  // TODO(brettw) append other parameters.
-
-#if defined(OS_WIN)
-  return WideToUTF8(cmdline.GetCommandLineString());
-#else
-  return cmdline.GetCommandLineString();
-#endif
-}
-
-}  // namespace
-
-NinjaBuildWriter::NinjaBuildWriter(
-    const BuildSettings* build_settings,
-    const std::vector<const Settings*>& all_settings,
-    const std::vector<const Target*>& default_toolchain_targets,
-    std::ostream& out)
-    : build_settings_(build_settings),
-      all_settings_(all_settings),
-      default_toolchain_targets_(default_toolchain_targets),
-      out_(out),
-      path_output_(build_settings->build_dir(), ESCAPE_NINJA, true),
-      helper_(build_settings) {
-}
-
-NinjaBuildWriter::~NinjaBuildWriter() {
-}
-
-void NinjaBuildWriter::Run() {
-  WriteNinjaRules();
-  WriteSubninjas();
-  WritePhonyAndAllRules();
-}
-
-// static
-bool NinjaBuildWriter::RunAndWriteFile(
-    const BuildSettings* build_settings,
-    const std::vector<const Settings*>& all_settings,
-    const std::vector<const Target*>& default_toolchain_targets) {
-  base::FilePath ninja_file(build_settings->GetFullPath(
-      SourceFile(build_settings->build_dir().value() + "build.ninja")));
-  file_util::CreateDirectory(ninja_file.DirName());
-
-  std::ofstream file;
-  file.open(FilePathToUTF8(ninja_file).c_str(),
-            std::ios_base::out | std::ios_base::binary);
-  if (file.fail())
-    return false;
-
-  NinjaBuildWriter gen(build_settings, all_settings,
-                       default_toolchain_targets, file);
-  gen.Run();
-  return true;
-}
-
-void NinjaBuildWriter::WriteNinjaRules() {
-  out_ << "rule gn\n";
-  out_ << "  command = " << GetSelfInvocationCommand(build_settings_) << "\n";
-  out_ << "  description = GN the world\n\n";
-
-  out_ << "build build.ninja: gn";
-
-  // Input build files.
-  std::vector<SourceFile> input_files;
-  g_scheduler->input_file_manager()->GetAllInputFileNames(&input_files);
-  for (size_t i = 0; i < input_files.size(); i++) {
-    out_ << " ";
-    path_output_.WriteFile(out_, input_files[i]);
-  }
-
-  // Other files read by the build.
-  std::vector<SourceFile> other_files = g_scheduler->GetGenDependencies();
-  for (size_t i = 0; i < other_files.size(); i++) {
-    out_ << " ";
-    path_output_.WriteFile(out_, other_files[i]);
-  }
-
-  out_ << std::endl << std::endl;
-}
-
-void NinjaBuildWriter::WriteSubninjas() {
-  for (size_t i = 0; i < all_settings_.size(); i++) {
-    out_ << "subninja ";
-    path_output_.WriteFile(out_,
-                           helper_.GetNinjaFileForToolchain(all_settings_[i]));
-    out_ << std::endl;
-  }
-  out_ << std::endl;
-}
-
-void NinjaBuildWriter::WritePhonyAndAllRules() {
-  std::string all_rules;
-
-  // Write phony rules for the default toolchain (don't do other toolchains or
-  // we'll get naming conflicts).
-  for (size_t i = 0; i < default_toolchain_targets_.size(); i++) {
-    const Target* target = default_toolchain_targets_[i];
-    if (target->output_type() == Target::NONE)
-      continue;  // Nothing to generate.
-
-    OutputFile target_file = helper_.GetTargetOutputFile(target);
-    if (target_file.value() != target->label().name()) {
-      out_ << "build " << target->label().name() << ": phony ";
-      path_output_.WriteFile(out_, target_file);
-      out_ << std::endl;
-    }
-
-    if (!all_rules.empty())
-      all_rules.append(" $\n    ");
-    all_rules.append(target_file.value());
-  }
-
-  if (!all_rules.empty()) {
-    out_ << "\nbuild all: phony " << all_rules << std::endl;
-    out_ << "default all" << std::endl;
-  }
-}
-
diff --git a/tools/gn/ninja_build_writer.h b/tools/gn/ninja_build_writer.h
deleted file mode 100644
index 85548df76973..000000000000
--- a/tools/gn/ninja_build_writer.h
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_NINJA_BUILD_WRITER_H_
-#define TOOLS_GN_NINJA_BUILD_WRITER_H_
-
-#include <iosfwd>
-#include <vector>
-
-#include "tools/gn/ninja_helper.h"
-#include "tools/gn/path_output.h"
-
-class BuildSettings;
-class Settings;
-class Target;
-
-// Generates the toplevel "build.ninja" file. This references the individual
-// toolchain files and lists all input .gn files as dependencies of the
-// build itself.
-class NinjaBuildWriter {
- public:
-  static bool RunAndWriteFile(
-      const BuildSettings* settings,
-      const std::vector<const Settings*>& all_settings,
-      const std::vector<const Target*>& default_toolchain_targets);
-
- private:
-  NinjaBuildWriter(const BuildSettings* settings,
-                   const std::vector<const Settings*>& all_settings,
-                   const std::vector<const Target*>& default_toolchain_targets,
-                   std::ostream& out);
-  ~NinjaBuildWriter();
-
-  void Run();
-
-  void WriteNinjaRules();
-  void WriteSubninjas();
-  void WritePhonyAndAllRules();
-
-  const BuildSettings* build_settings_;
-  std::vector<const Settings*> all_settings_;
-  std::vector<const Target*> default_toolchain_targets_;
-  std::ostream& out_;
-  PathOutput path_output_;
-
-  NinjaHelper helper_;
-
-  DISALLOW_COPY_AND_ASSIGN(NinjaBuildWriter);
-};
-
-#endif  // TOOLS_GN_NINJA_BUILD_GENERATOR_H_
-
diff --git a/tools/gn/ninja_helper.cc b/tools/gn/ninja_helper.cc
deleted file mode 100644
index c27c0e40c76c..000000000000
--- a/tools/gn/ninja_helper.cc
+++ /dev/null
@@ -1,165 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/ninja_helper.h"
-
-#include "base/logging.h"
-#include "tools/gn/filesystem_utils.h"
-#include "tools/gn/string_utils.h"
-#include "tools/gn/target.h"
-
-namespace {
-
-const char kLibDirWithSlash[] = "lib";
-const char kObjectDirNoSlash[] = "obj";
-
-}  // namespace
-
-NinjaHelper::NinjaHelper(const BuildSettings* build_settings)
-    : build_settings_(build_settings) {
-  build_to_src_no_last_slash_ = build_settings->build_to_source_dir_string();
-  if (!build_to_src_no_last_slash_.empty() &&
-      build_to_src_no_last_slash_[build_to_src_no_last_slash_.size() - 1] ==
-          '/')
-    build_to_src_no_last_slash_.resize(build_to_src_no_last_slash_.size() - 1);
-
-  build_to_src_system_no_last_slash_ = build_to_src_no_last_slash_;
-  ConvertPathToSystem(&build_to_src_system_no_last_slash_);
-}
-
-NinjaHelper::~NinjaHelper() {
-}
-
-std::string NinjaHelper::GetTopleveOutputDir() const {
-  return kObjectDirNoSlash;
-}
-
-std::string NinjaHelper::GetTargetOutputDir(const Target* target) const {
-  return kObjectDirNoSlash + target->label().dir().SourceAbsoluteWithOneSlash();
-}
-
-OutputFile NinjaHelper::GetNinjaFileForTarget(const Target* target) const {
-  OutputFile ret(target->settings()->toolchain_output_subdir());
-  ret.value().append(kObjectDirNoSlash);
-  AppendStringPiece(&ret.value(),
-                    target->label().dir().SourceAbsoluteWithOneSlash());
-  ret.value().append(target->label().name());
-  ret.value().append(".ninja");
-  return ret;
-}
-
-OutputFile NinjaHelper::GetNinjaFileForToolchain(
-    const Settings* settings) const {
-  OutputFile ret;
-  ret.value().append(settings->toolchain_output_subdir().value());
-  ret.value().append("toolchain.ninja");
-  return ret;
-}
-
-// In Python, GypPathToUniqueOutput does the qualification. The only case where
-// the Python version doesn't qualify the name is for target outputs, which we
-// handle in a separate function.
-OutputFile NinjaHelper::GetOutputFileForSource(
-    const Target* target,
-    const SourceFile& source,
-    SourceFileType type) const {
-  // Extract the filename and remove the extension (keep the dot).
-  base::StringPiece filename = FindFilename(&source.value());
-  std::string name(filename.data(), filename.size());
-  size_t extension_offset = FindExtensionOffset(name);
-  CHECK(extension_offset != std::string::npos);
-  name.resize(extension_offset);
-
-  // Append the new extension.
-  switch (type) {
-    case SOURCE_ASM:
-    case SOURCE_C:
-    case SOURCE_CC:
-    case SOURCE_M:
-    case SOURCE_MM:
-      name.append(target->settings()->IsWin() ? "obj" : "o");
-      break;
-
-    case SOURCE_RC:
-      name.append("res");
-      break;
-
-    case SOURCE_H:
-    case SOURCE_UNKNOWN:
-      NOTREACHED();
-      return OutputFile();
-  }
-
-  // Use the scheme <path>/<target>.<name>.<extension> so that all output
-  // names are unique to different targets.
-  OutputFile ret(kObjectDirNoSlash);
-
-  // Find the directory, assume it starts with two slashes, and trim to one.
-  base::StringPiece dir = FindDir(&source.value());
-  CHECK(dir.size() >= 2 && dir[0] == '/' && dir[1] == '/')
-      << "Source file isn't in the source repo: " << dir;
-  AppendStringPiece(&ret.value(), dir.substr(1));
-
-  ret.value().append(target->label().name());
-  ret.value().append(".");
-  ret.value().append(name);
-  return ret;
-}
-
-OutputFile NinjaHelper::GetTargetOutputFile(const Target* target) const {
-  OutputFile ret;
-  if (target->output_type() == Target::NONE) {
-    NOTREACHED();
-    return ret;
-  }
-
-  const char* extension;
-  if (target->output_type() == Target::NONE ||
-      target->output_type() == Target::COPY_FILES ||
-      target->output_type() == Target::CUSTOM) {
-    extension = "stamp";
-  } else {
-    extension = GetExtensionForOutputType(target->output_type(),
-                                          target->settings()->target_os());
-  }
-
-  // Everything goes into the toolchain directory (which will be empty for the
-  // default toolchain, and will end in a slash otherwise).
-  ret.value().append(target->settings()->toolchain_output_subdir().value());
-
-  // Binaries and loadable libraries go into the toolchain root.
-  if (target->output_type() == Target::EXECUTABLE ||
-      target->output_type() == Target::LOADABLE_MODULE ||
-      (target->settings()->IsMac() &&
-          (target->output_type() == Target::SHARED_LIBRARY ||
-           target->output_type() == Target::STATIC_LIBRARY)) ||
-      (target->settings()->IsWin() &&
-       target->output_type() == Target::SHARED_LIBRARY)) {
-    // Generate a name like "<toolchain>/<name>.<extension>".
-    ret.value().append(target->label().name());
-    ret.value().push_back('.');
-    ret.value().append(extension);
-    return ret;
-  }
-
-  // Libraries go into the library subdirectory like
-  // "<toolchain>/lib/<name>.<extension>".
-  if (target->output_type() == Target::SHARED_LIBRARY) {
-    ret.value().append(kLibDirWithSlash);
-    ret.value().append(target->label().name());
-    ret.value().push_back('.');
-    ret.value().append(extension);
-    return ret;
-  }
-
-  // Everything else goes next to the target's .ninja file like
-  // "<toolchain>/obj/<path>/<name>.<extension>".
-  ret.value().append(kObjectDirNoSlash);
-  AppendStringPiece(&ret.value(),
-                    target->label().dir().SourceAbsoluteWithOneSlash());
-  ret.value().append(target->label().name());
-  ret.value().push_back('.');
-  ret.value().append(extension);
-  return ret;
-}
diff --git a/tools/gn/ninja_helper.h b/tools/gn/ninja_helper.h
deleted file mode 100644
index 5bea29ed2142..000000000000
--- a/tools/gn/ninja_helper.h
+++ /dev/null
@@ -1,71 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_NINJA_HELPER_H_
-#define TOOLS_GN_NINJA_HELPER_H_
-
-#include <iosfwd>
-#include <string>
-
-#include "tools/gn/filesystem_utils.h"
-#include "tools/gn/output_file.h"
-
-class BuildSettings;
-class SourceDir;
-class SourceFile;
-class Target;
-
-// NinjaHelper -----------------------------------------------------------------
-
-class NinjaHelper {
- public:
-  NinjaHelper(const BuildSettings* build_settings);
-  ~NinjaHelper();
-
-  // Ends in a slash.
-  std::string GetTopleveOutputDir() const;
-
-  // Ends in a slash.
-  std::string GetTargetOutputDir(const Target* target) const;
-
-  // Example: "base/base.ninja". The string version will not be escaped, and
-  // will always have slashes for path separators.
-  OutputFile GetNinjaFileForTarget(const Target* target) const;
-
-  // Returns the name of the root .ninja file for the given toolchain.
-  OutputFile GetNinjaFileForToolchain(const Settings* settings) const;
-
-  // Given a source file relative to the source root, returns the output
-  // filename.
-  OutputFile GetOutputFileForSource(const Target* target,
-                                   const SourceFile& source,
-                                   SourceFileType type) const;
-
-  // Returns the filename produced by the given output.
-  //
-  // Some targets make multiple files (like a .dll and an import library). This
-  // function returns the name of the file other targets should depend on and
-  // link to (so in this example, the import library).
-  OutputFile GetTargetOutputFile(const Target* target) const;
-
-  // Returns the relative directory in either slashes or the system separator
-  // from the ninja directory (e.g. "out/Debug") to the source root (e.g.
-  // "../.."). It has no terminating slash.
-  const std::string& build_to_src_no_last_slash() const {
-    return build_to_src_no_last_slash_;
-  }
-  const std::string& build_to_src_system_no_last_slash() const {
-    return build_to_src_system_no_last_slash_;
-  }
-
- private:
-  const BuildSettings* build_settings_;
-
-  std::string build_to_src_no_last_slash_;
-  std::string build_to_src_system_no_last_slash_;
-
-  DISALLOW_COPY_AND_ASSIGN(NinjaHelper);
-};
-
-#endif  // TOOLS_GN_NINJA_HELPER_H_
diff --git a/tools/gn/ninja_helper_unittest.cc b/tools/gn/ninja_helper_unittest.cc
deleted file mode 100644
index 4aec0325bc88..000000000000
--- a/tools/gn/ninja_helper_unittest.cc
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "testing/gtest/include/gtest/gtest.h"
-
-#include "tools/gn/filesystem_utils.h"
-#include "tools/gn/ninja_helper.h"
-#include "tools/gn/settings.h"
-#include "tools/gn/target.h"
-#include "tools/gn/toolchain.h"
-
-namespace {
-
-class HelperSetterUpper {
- public:
-  HelperSetterUpper()
-      : build_settings(),
-        toolchain(Label(SourceDir("//"), "tc", SourceDir(), std::string())),
-        settings(&build_settings, &toolchain, std::string()),
-        target(&settings,
-               Label(SourceDir("//tools/gn/"), "name",
-                     SourceDir(), std::string())) {
-    settings.set_target_os(Settings::WIN);
-
-    // Output going to "out/Debug".
-    build_settings.SetBuildDir(SourceDir("/out/Debug/"));
-
-    // Our source target is in "tools/gn".
-    target.set_output_type(Target::EXECUTABLE);
-  }
-
-  BuildSettings build_settings;
-  Toolchain toolchain;
-  Settings settings;
-  Target target;
-};
-
-}  // namespace
-
-TEST(NinjaHelper, GetNinjaFileForTarget) {
-  HelperSetterUpper setup;
-  NinjaHelper helper(&setup.build_settings);
-
-  // Default toolchain.
-  EXPECT_EQ(OutputFile("obj/tools/gn/name.ninja").value(),
-            helper.GetNinjaFileForTarget(&setup.target).value());
-}
-
-TEST(NinjaHelper, GetOutputFileForSource) {
-  HelperSetterUpper setup;
-  NinjaHelper helper(&setup.build_settings);
-
-  // On Windows, expect ".obj"
-  EXPECT_EQ(OutputFile("obj/tools/gn/name.foo.obj").value(),
-            helper.GetOutputFileForSource(&setup.target,
-                                          SourceFile("//tools/gn/foo.cc"),
-                                          SOURCE_CC).value());
-}
-
-TEST(NinjaHelper, GetTargetOutputFile) {
-  HelperSetterUpper setup;
-  NinjaHelper helper(&setup.build_settings);
-  EXPECT_EQ(OutputFile("name.exe"),
-            helper.GetTargetOutputFile(&setup.target));
-
-  // Static library on Windows goes alongside the object files.
-  setup.target.set_output_type(Target::STATIC_LIBRARY);
-  EXPECT_EQ(OutputFile("obj/tools/gn/name.lib"),
-            helper.GetTargetOutputFile(&setup.target));
-
-  // TODO(brettw) test output to library and other OS types.
-}
diff --git a/tools/gn/ninja_target_writer.cc b/tools/gn/ninja_target_writer.cc
deleted file mode 100644
index ed2d09d06aec..000000000000
--- a/tools/gn/ninja_target_writer.cc
+++ /dev/null
@@ -1,550 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/ninja_target_writer.h"
-
-#include <fstream>
-#include <sstream>
-
-#include "base/file_util.h"
-#include "base/logging.h"
-#include "base/strings/string_util.h"
-#include "tools/gn/config_values_extractors.h"
-#include "tools/gn/err.h"
-#include "tools/gn/escape.h"
-#include "tools/gn/file_template.h"
-#include "tools/gn/location.h"
-#include "tools/gn/path_output.h"
-#include "tools/gn/scheduler.h"
-#include "tools/gn/string_utils.h"
-#include "tools/gn/target.h"
-
-namespace {
-
-static const char kCustomTargetSourceKey[] = "{{source}}";
-static const char kCustomTargetSourceNamePartKey[] = "{{source_name_part}}";
-
-struct DefineWriter {
-  void operator()(const std::string& s, std::ostream& out) const {
-    out << " -D" << s;
-  }
-};
-
-struct IncludeWriter {
-  IncludeWriter(PathOutput& path_output,
-                const NinjaHelper& h)
-      : helper(h),
-        path_output_(path_output),
-        old_inhibit_quoting_(path_output.inhibit_quoting()) {
-    // Inhibit quoting since we'll put quotes around the whole thing ourselves.
-    // Since we're writing in NINJA escaping mode, this won't actually do
-    // anything, but I think we may need to change to shell-and-then-ninja
-    // escaping for this in the future.
-    path_output_.set_inhibit_quoting(true);
-  }
-  ~IncludeWriter() {
-    path_output_.set_inhibit_quoting(old_inhibit_quoting_);
-  }
-
-  void operator()(const SourceDir& d, std::ostream& out) const {
-    out << " \"-I";
-    // It's important not to include the trailing slash on directories or on
-    // Windows it will be a backslash and the compiler might think we're
-    // escaping the quote!
-    path_output_.WriteDir(out, d, PathOutput::DIR_NO_LAST_SLASH);
-    out << "\"";
-  }
-
-  const NinjaHelper& helper;
-  PathOutput& path_output_;
-  bool old_inhibit_quoting_;  // So we can put the PathOutput back.
-};
-
-}  // namespace
-
-NinjaTargetWriter::NinjaTargetWriter(const Target* target, std::ostream& out)
-    : settings_(target->settings()),
-      target_(target),
-      out_(out),
-      path_output_(settings_->build_settings()->build_dir(),
-                   ESCAPE_NINJA, true),
-      helper_(settings_->build_settings()) {
-}
-
-NinjaTargetWriter::~NinjaTargetWriter() {
-}
-
-void NinjaTargetWriter::Run() {
-  out_ << "arch = environment.x86\n";
-
-  if (target_->output_type() == Target::COPY_FILES) {
-    WriteCopyRules();
-  } else if (target_->output_type() == Target::CUSTOM) {
-    WriteCustomRules();
-  } else {
-    WriteCompilerVars();
-
-    std::vector<OutputFile> obj_files;
-    WriteSources(&obj_files);
-
-    WriteLinkerStuff(obj_files);
-  }
-}
-
-// static
-void NinjaTargetWriter::RunAndWriteFile(const Target* target) {
-  if (target->output_type() == Target::NONE)
-    return;
-
-  const Settings* settings = target->settings();
-  NinjaHelper helper(settings->build_settings());
-
-  base::FilePath ninja_file(settings->build_settings()->GetFullPath(
-      helper.GetNinjaFileForTarget(target).GetSourceFile(
-          settings->build_settings())));
-
-  file_util::CreateDirectory(ninja_file.DirName());
-
-  // It's rediculously faster to write to a string and then write that to
-  // disk in one operation than to use an fstream here.
-  std::stringstream file;
-  if (file.fail()) {
-    g_scheduler->FailWithError(
-        Err(Location(), "Error writing ninja file.",
-            "Unable to open \"" + FilePathToUTF8(ninja_file) + "\"\n"
-            "for writing."));
-    return;
-  }
-
-  NinjaTargetWriter gen(target, file);
-  gen.Run();
-
-  std::string contents = file.str();
-  file_util::WriteFile(ninja_file, contents.c_str(), contents.size());
-}
-
-void NinjaTargetWriter::WriteCopyRules() {
-  // The dest dir should be inside the output dir so we can just remove the
-  // prefix and get ninja-relative paths.
-  const std::string& output_dir =
-      settings_->build_settings()->build_dir().value();
-  const std::string& dest_dir = target_->destdir().value();
-  DCHECK(StartsWithASCII(dest_dir, output_dir, true));
-  std::string relative_dest_dir(&dest_dir[output_dir.size()],
-                                dest_dir.size() - output_dir.size());
-
-  const Target::FileList& sources = target_->sources();
-  std::vector<OutputFile> dest_files;
-  dest_files.reserve(sources.size());
-
-  // Write out rules for each file copied.
-  for (size_t i = 0; i < sources.size(); i++) {
-    const SourceFile& input_file = sources[i];
-
-    // The files should have the same name but in the dest dir.
-    base::StringPiece name_part = FindFilename(&input_file.value());
-    OutputFile dest_file(relative_dest_dir);
-    AppendStringPiece(&dest_file.value(), name_part);
-
-    dest_files.push_back(dest_file);
-
-    out_ << "build ";
-    path_output_.WriteFile(out_, dest_file);
-    out_ << ": copy ";
-    path_output_.WriteFile(out_, input_file);
-    out_ << std::endl;
-  }
-
-  // Write out the rule for the target to copy all of them.
-  out_ << std::endl << "build ";
-  path_output_.WriteFile(out_, helper_.GetTargetOutputFile(target_));
-  out_ << ": stamp";
-  for (size_t i = 0; i < dest_files.size(); i++) {
-    out_ << " ";
-    path_output_.WriteFile(out_, dest_files[i]);
-  }
-  out_ << std::endl;
-
-  // TODO(brettw) need some kind of stamp file for depending on this, as well
-  // as order_only=prebuild.
-}
-
-void NinjaTargetWriter::WriteCustomRules() {
-  // Make a unique name for this rule.
-  std::string target_label = target_->label().GetUserVisibleName(true);
-  std::string custom_rule_name(target_label);
-  ReplaceChars(custom_rule_name, ":/()", "_", &custom_rule_name);
-  custom_rule_name.append("_rule");
-
-  // Run the script from the dir of the BUILD file. This has no trailing
-  // slash.
-  const SourceDir& script_cd = target_->label().dir();
-  std::string script_cd_to_root = InvertDir(script_cd);
-  if (script_cd_to_root.empty()) {
-    script_cd_to_root = ".";
-  } else {
-    // Remove trailing slash
-    DCHECK(script_cd_to_root[script_cd_to_root.size() - 1] == '/');
-    script_cd_to_root.resize(script_cd_to_root.size() - 1);
-  }
-
-  std::string script_relative_to_cd =
-      script_cd_to_root + target_->script().value();
-
-  bool no_sources = target_->sources().empty();
-
-  // Use a unique name for the response file when there are multiple build
-  // steps so that they don't stomp on each other.
-  std::string rspfile = custom_rule_name;
-  if (!no_sources)
-    rspfile += ".$unique_name";
-  rspfile += ".rsp";
-
-  // First write the custom rule.
-  out_ << "rule " << custom_rule_name << std::endl;
-  out_ << "  command = $pythonpath gyp-win-tool action-wrapper $arch "
-       << rspfile << " ";
-  path_output_.WriteDir(out_, script_cd, PathOutput::DIR_NO_LAST_SLASH);
-  out_ << std::endl;
-  out_ << "  description = CUSTOM " << target_label << std::endl;
-  out_ << "  restat = 1" << std::endl;
-  out_ << "  rspfile = " << rspfile << std::endl;
-
-  // The build command goes in the rsp file.
-  out_ << "  rspfile_content = $pythonpath " << script_relative_to_cd;
-  for (size_t i = 0; i < target_->script_args().size(); i++) {
-    const std::string& arg = target_->script_args()[i];
-    out_ << " ";
-    WriteCustomArg(arg);
-  }
-  out_ << std::endl << std::endl;
-
-  // Precompute the common dependencies for each step. This includes the
-  // script itself (changing the script should force a rebuild) and any data
-  // files.
-  std::ostringstream common_deps_stream;
-  path_output_.WriteFile(common_deps_stream, target_->script());
-  const Target::FileList& datas = target_->data();
-  for (size_t i = 0; i < datas.size(); i++) {
-    common_deps_stream << " ";
-    path_output_.WriteFile(common_deps_stream, datas[i]);
-  }
-  const std::string& common_deps = common_deps_stream.str();
-
-  // Collects all output files for writing below.
-  std::vector<OutputFile> output_files;
-
-  if (no_sources) {
-    // No sources, write a rule that invokes the script once with the
-    // outputs as outputs, and the data as inputs.
-    out_ << "build";
-    const Target::FileList& outputs = target_->outputs();
-    for (size_t i = 0; i < outputs.size(); i++) {
-      OutputFile output_path(
-          RemovePrefix(outputs[i].value(),
-                       settings_->build_settings()->build_dir().value()));
-      output_files.push_back(output_path);
-      out_ << " ";
-      path_output_.WriteFile(out_, output_path);
-    }
-    out_ << ": " << custom_rule_name << " " << common_deps << std::endl;
-  } else {
-    // Write separate rules for each input source file.
-    WriteCustomSourceRules(custom_rule_name, common_deps, script_cd,
-                           script_cd_to_root, &output_files);
-  }
-  out_ << std::endl;
-
-  // Last write a stamp rule to collect all outputs.
-  out_ << "build ";
-  path_output_.WriteFile(out_, helper_.GetTargetOutputFile(target_));
-  out_ << ": stamp";
-  for (size_t i = 0; i < output_files.size(); i++) {
-    out_ << " ";
-    path_output_.WriteFile(out_, output_files[i]);
-  }
-  out_ << std::endl;
-}
-
-void NinjaTargetWriter::WriteCustomArg(const std::string& arg) {
-  // This can be optimized if it's called a lot.
-  EscapeOptions options;
-  options.mode = ESCAPE_NINJA;
-  std::string output_str = EscapeString(arg, options);
-
-  // Do this substitution after escaping our our $ will be escaped (which we
-  // don't want).
-  ReplaceSubstringsAfterOffset(&output_str, 0, FileTemplate::kSource,
-                               "${source}");
-  ReplaceSubstringsAfterOffset(&output_str, 0, FileTemplate::kSourceNamePart,
-                               "${source_name_part}");
-  out_ << output_str;
-}
-
-void NinjaTargetWriter::WriteCustomSourceRules(
-    const std::string& custom_rule_name,
-    const std::string& common_deps,
-    const SourceDir& script_cd,
-    const std::string& script_cd_to_root,
-    std::vector<OutputFile>* output_files) {
-  // Construct the template for generating the output files from each source.
-  const Target::FileList& outputs = target_->outputs();
-  std::vector<std::string> output_template_args;
-  for (size_t i = 0; i < outputs.size(); i++) {
-    // All outputs should be in the output dir.
-    output_template_args.push_back(
-        RemovePrefix(outputs[i].value(),
-                     settings_->build_settings()->build_dir().value()));
-  }
-  FileTemplate output_template(output_template_args);
-
-  // Prevent re-allocating each time by initializing outside the loop.
-  std::vector<std::string> output_template_result;
-
-  // Path output formatter for wrigin source paths passed to the script.
-  PathOutput script_source_path_output(script_cd, ESCAPE_SHELL, true);
-
-  const Target::FileList& sources = target_->sources();
-  for (size_t i = 0; i < sources.size(); i++) {
-    // Write outputs for this source file computed by the template.
-    out_ << "build";
-    output_template.ApplyString(sources[i].value(), &output_template_result);
-    for (size_t out_i = 0; out_i < output_template_result.size(); out_i++) {
-      OutputFile output_path(output_template_result[out_i]);
-      output_files->push_back(output_path);
-      out_ << " ";
-      path_output_.WriteFile(out_, output_path);
-    }
-
-    out_ << ": " << custom_rule_name
-         << " " << common_deps
-         << " ";
-    path_output_.WriteFile(out_, sources[i]);
-    out_ << std::endl;
-
-    out_ << "  unique_name = " << i << std::endl;
-
-    // The source file here should be relative to the script directory since
-    // this is the variable passed to the script. Here we slightly abuse the
-    // OutputFile object by putting a non-output-relative path in it to signal
-    // that the PathWriter should not prepend directories.
-    out_ << "  source = ";
-    script_source_path_output.WriteFile(out_, sources[i]);
-    out_ << std::endl;
-
-    out_ << "  source_name_part = "
-         << FindFilenameNoExtension(&sources[i].value()).as_string()
-         << std::endl;
-  }
-}
-
-void NinjaTargetWriter::WriteCompilerVars() {
-  // Defines.
-  out_ << "defines =";
-  RecursiveTargetConfigToStream(target_, &ConfigValues::defines,
-                                DefineWriter(), out_);
-  out_ << std::endl;
-
-  // Includes.
-  out_ << "includes =";
-  RecursiveTargetConfigToStream(target_, &ConfigValues::includes,
-                                IncludeWriter(path_output_, helper_), out_);
-
-  out_ << std::endl;
-
-  // C flags and friends.
-  out_ << "cflags =";
-  RecursiveTargetConfigStringsToStream(target_, &ConfigValues::cflags, out_);
-  out_ << std::endl;
-  out_ << "cflags_c =";
-  RecursiveTargetConfigStringsToStream(target_, &ConfigValues::cflags_c, out_);
-  out_ << std::endl;
-  out_ << "cflags_cc =";
-  RecursiveTargetConfigStringsToStream(target_, &ConfigValues::cflags_cc, out_);
-  out_ << std::endl;
-
-  out_ << std::endl;
-}
-
-void NinjaTargetWriter::WriteSources(
-    std::vector<OutputFile>* object_files) {
-  const Target::FileList& sources = target_->sources();
-  object_files->reserve(sources.size());
-
-  for (size_t i = 0; i < sources.size(); i++) {
-    const SourceFile& input_file = sources[i];
-
-    SourceFileType input_file_type = GetSourceFileType(input_file,
-                                                       settings_->target_os());
-    if (input_file_type == SOURCE_UNKNOWN)
-      continue;  // Skip unknown file types.
-    const char* command = GetCommandForSourceType(input_file_type);
-    if (!command)
-      continue;  // Skip files not needing compilation.
-
-    OutputFile output_file = helper_.GetOutputFileForSource(
-        target_, input_file, input_file_type);
-    object_files->push_back(output_file);
-
-    out_ << "build ";
-    path_output_.WriteFile(out_, output_file);
-    out_ << ": " << command << " ";
-    path_output_.WriteFile(out_, input_file);
-    out_ << std::endl;
-  }
-  out_ << std::endl;
-}
-
-void NinjaTargetWriter::WriteLinkerStuff(
-    const std::vector<OutputFile>& object_files) {
-  // Manifest file on Windows.
-  // TODO(brettw) this seems not to be necessary for static libs, skip in
-  // that case?
-  OutputFile windows_manifest;
-  if (settings_->IsWin()) {
-    windows_manifest.value().assign(helper_.GetTargetOutputDir(target_));
-    windows_manifest.value().append(target_->label().name());
-    windows_manifest.value().append(".intermediate.manifest");
-    out_ << "manifests = ";
-    path_output_.WriteFile(out_, windows_manifest);
-    out_ << std::endl;
-  }
-
-  // Linker flags, append manifest flag on Windows to reference our file.
-  out_ << "ldflags =";
-  RecursiveTargetConfigStringsToStream(target_, &ConfigValues::ldflags, out_);
-  if (settings_->IsWin())
-    out_ << " /MANIFEST /ManifestFile:";
-    path_output_.WriteFile(out_, windows_manifest);
-  {  // HACK ERASEME BRETTW FIXME
-    out_ << " /DEBUG /MACHINE:X86 /LIBPATH:\"C:\\Program Files (x86)\\Windows Kits\\8.0\\Lib\\win8\\um\\x86\" /DELAYLOAD:dbghelp.dll /DELAYLOAD:dwmapi.dll /DELAYLOAD:shell32.dll /DELAYLOAD:uxtheme.dll /safeseh /dynamicbase /ignore:4199 /ignore:4221 /nxcompat /SUBSYSTEM:CONSOLE /INCREMENTAL /FIXED:NO /DYNAMICBASE:NO wininet.lib dnsapi.lib version.lib msimg32.lib ws2_32.lib usp10.lib psapi.lib dbghelp.lib winmm.lib shlwapi.lib kernel32.lib gdi32.lib winspool.lib comdlg32.lib advapi32.lib shell32.lib ole32.lib oleaut32.lib user32.lib uuid.lib odbc32.lib odbccp32.lib delayimp.lib /NXCOMPAT";
-  }
-  out_ << std::endl;
-
-  // Libraries to link.
-  out_ << "libs =" << std::endl;
-
-  // The external output file is the one that other libs depend on.
-  OutputFile external_output_file = helper_.GetTargetOutputFile(target_);
-
-  // The internal output file is the "main thing" we think we're making. In
-  // the case of shared libraries, this is the shared library and the external
-  // output file is the import library. In other cases, the internal one and
-  // the external one are the same.
-  OutputFile internal_output_file;
-  if (target_->output_type() == Target::SHARED_LIBRARY) {
-    if (settings_->IsWin()) {
-      internal_output_file = OutputFile(target_->label().name() + ".dll");
-    } else {
-      NOTREACHED();  // TODO(brettw) write this.
-    }
-  } else {
-    internal_output_file = external_output_file;
-  }
-
-  // TODO(brettw) should we append data files to this?
-
-  // In Python see "self.ninja.build(output, command, input,"
-  out_ << "build ";
-  path_output_.WriteFile(out_, internal_output_file);
-  if (external_output_file != internal_output_file) {
-    out_ << " ";
-    path_output_.WriteFile(out_, external_output_file);
-  }
-  out_ << ": " << GetCommandForTargetType();
-  for (size_t i = 0; i < object_files.size(); i++) {
-    out_ << " ";
-    path_output_.WriteFile(out_, object_files[i]);
-  }
-
-  if (target_->output_type() == Target::EXECUTABLE ||
-      target_->output_type() == Target::SHARED_LIBRARY ||
-      target_->output_type() == Target::LOADABLE_MODULE) {
-    const std::vector<const Target*>& deps = target_->deps();
-    const std::set<const Target*>& inherited = target_->inherited_libraries();
-
-    // Now append linkable libraries to the linker command.
-    for (size_t i = 0; i < deps.size(); i++) {
-      if (deps[i]->IsLinkable() &&
-          inherited.find(deps[i]) == inherited.end()) {
-        out_ << " ";
-        path_output_.WriteFile(out_,
-                               helper_.GetTargetOutputFile(target_->deps()[i]));
-      }
-    }
-    for (std::set<const Target*>::const_iterator i = inherited.begin();
-         i != inherited.end(); ++i) {
-      out_ << " ";
-      path_output_.WriteFile(out_, helper_.GetTargetOutputFile(*i));
-    }
-  }
-  out_ << std::endl;
-
-  if (target_->output_type() == Target::SHARED_LIBRARY) {
-    out_ << "  soname = ";
-    path_output_.WriteFile(out_, internal_output_file);
-    out_ << std::endl;
-
-    out_ << "  lib = ";
-    path_output_.WriteFile(out_, internal_output_file);
-    out_ << std::endl;
-
-    out_ << "  dll = ";
-    path_output_.WriteFile(out_, internal_output_file);
-    out_ << std::endl;
-
-    if (settings_->IsWin()) {
-      out_ << "  implibflag = /IMPLIB:";
-      path_output_.WriteFile(out_, external_output_file);
-      out_ << std::endl;
-    }
-  }
-
-  // TODO(brettw) postbuild steps here.
-
-  out_ << std::endl;
-}
-
-const char* NinjaTargetWriter::GetCommandForSourceType(
-    SourceFileType type) const {
-  if (type == SOURCE_C)
-    return "cc";
-  if (type == SOURCE_CC)
-    return "cxx";
-
-  // TODO(brettw) asm files.
-
-  if (settings_->IsMac()) {
-    if (type == SOURCE_M)
-      return "objc";
-    if (type == SOURCE_MM)
-      return "objcxx";
-  }
-
-  if (settings_->IsWin()) {
-    if (type == SOURCE_RC)
-      return "rc";
-  }
-
-  // TODO(brettw) stuff about "S" files on non-Windows.
-  return NULL;
-}
-
-const char* NinjaTargetWriter::GetCommandForTargetType() const {
-  if (target_->output_type() == Target::NONE) {
-    NOTREACHED();
-    return "";
-  }
-
-  if (target_->output_type() == Target::STATIC_LIBRARY) {
-    // TODO(brettw) stuff about standalong static libraryes on Unix in
-    // WriteTarget in the Python one, and lots of postbuild steps.
-    return "alink";
-  }
-
-  if (target_->output_type() == Target::SHARED_LIBRARY)
-    return "solink";
-
-  return "link";
-}
diff --git a/tools/gn/ninja_target_writer.h b/tools/gn/ninja_target_writer.h
deleted file mode 100644
index 5e6827d55095..000000000000
--- a/tools/gn/ninja_target_writer.h
+++ /dev/null
@@ -1,67 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_NINJA_TARGET_WRITER_H_
-#define TOOLS_GN_NINJA_TARGET_WRITER_H_
-
-#include <iosfwd>
-#include <string>
-
-#include "base/basictypes.h"
-#include "base/files/file_path.h"
-#include "tools/gn/filesystem_utils.h"
-#include "tools/gn/ninja_helper.h"
-#include "tools/gn/path_output.h"
-#include "tools/gn/settings.h"
-
-class Target;
-
-// Generates one target's ".ninja" file. The toplevel "build.ninja" file is
-// generated by the NinjaBuildGenerator.
-class NinjaTargetWriter {
- public:
-  NinjaTargetWriter(const Target* target, std::ostream& out);
-  ~NinjaTargetWriter();
-
-  void Run();
-
-  static void RunAndWriteFile(const Target* target);
-
- private:
-  void WriteCopyRules();
-
-  void WriteCustomRules();
-  void WriteCustomArg(const std::string& arg);
-
-  // Writs the rules for compiling each source, writing all output files
-  // to the given vector.
-  //
-  // common_deps is a precomputed string of all ninja files that are common
-  // to each build step. This is added to each one.
-  void WriteCustomSourceRules(const std::string& custom_rule_name,
-                              const std::string& common_deps,
-                              const SourceDir& script_cd,
-                              const std::string& script_cd_to_root,
-                              std::vector<OutputFile>* output_files);
-
-  void WriteCompilerVars();
-  void WriteSources(std::vector<OutputFile>* object_files);
-  void WriteLinkerStuff(const std::vector<OutputFile>& object_files);
-
-  // Returns NULL if the source type should not be compiled on this target.
-  const char* GetCommandForSourceType(SourceFileType type) const;
-
-  const char* GetCommandForTargetType() const;
-
-  const Settings* settings_;  // Non-owning.
-  const Target* target_;  // Non-owning.
-  std::ostream& out_;
-  PathOutput path_output_;
-
-  NinjaHelper helper_;
-
-  DISALLOW_COPY_AND_ASSIGN(NinjaTargetWriter);
-};
-
-#endif  // TOOLS_GN_NINJA_TARGET_WRITER_H_
diff --git a/tools/gn/ninja_toolchain_writer.cc b/tools/gn/ninja_toolchain_writer.cc
deleted file mode 100644
index 0e38b8c3fc94..000000000000
--- a/tools/gn/ninja_toolchain_writer.cc
+++ /dev/null
@@ -1,94 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/ninja_toolchain_writer.h"
-
-#include <fstream>
-
-#include "base/file_util.h"
-#include "base/strings/stringize_macros.h"
-#include "tools/gn/build_settings.h"
-#include "tools/gn/settings.h"
-#include "tools/gn/target.h"
-#include "tools/gn/toolchain.h"
-
-NinjaToolchainWriter::NinjaToolchainWriter(
-    const Settings* settings,
-    const std::vector<const Target*>& targets,
-    std::ostream& out)
-    : settings_(settings),
-      targets_(targets),
-      out_(out),
-      path_output_(settings_->build_settings()->build_dir(),
-                   ESCAPE_NINJA, true),
-      helper_(settings->build_settings()) {
-}
-
-NinjaToolchainWriter::~NinjaToolchainWriter() {
-}
-
-void NinjaToolchainWriter::Run() {
-  WriteRules();
-  WriteSubninjas();
-}
-
-// static
-bool NinjaToolchainWriter::RunAndWriteFile(
-    const Settings* settings,
-    const std::vector<const Target*>& targets) {
-  NinjaHelper helper(settings->build_settings());
-  base::FilePath ninja_file(settings->build_settings()->GetFullPath(
-      helper.GetNinjaFileForToolchain(settings).GetSourceFile(
-          settings->build_settings())));
-  file_util::CreateDirectory(ninja_file.DirName());
-
-  std::ofstream file;
-  file.open(FilePathToUTF8(ninja_file).c_str(),
-            std::ios_base::out | std::ios_base::binary);
-  if (file.fail())
-    return false;
-
-  NinjaToolchainWriter gen(settings, targets, file);
-  gen.Run();
-  return true;
-}
-
-void NinjaToolchainWriter::WriteRules() {
-  const Toolchain* tc = settings_->toolchain();
-  std::string indent("  ");
-
-  for (int i = Toolchain::TYPE_NONE + 1; i < Toolchain::TYPE_NUMTYPES; i++) {
-    Toolchain::ToolType tool_type = static_cast<Toolchain::ToolType>(i);
-    const Toolchain::Tool& tool = tc->GetTool(tool_type);
-    if (tool.empty())
-      continue;
-
-    out_ << "rule " << Toolchain::ToolTypeToName(tool_type) << std::endl;
-
-    #define WRITE_ARG(name) \
-      if (!tool.name.empty()) \
-        out_ << indent << "  " STRINGIZE(name) " = " << tool.name << std::endl;
-    WRITE_ARG(command);
-    WRITE_ARG(depfile);
-    WRITE_ARG(deps);
-    WRITE_ARG(description);
-    WRITE_ARG(pool);
-    WRITE_ARG(restat);
-    WRITE_ARG(rspfile);
-    WRITE_ARG(rspfile_content);
-    #undef WRITE_ARG
-  }
-  out_ << std::endl;
-}
-
-void NinjaToolchainWriter::WriteSubninjas() {
-  for (size_t i = 0; i < targets_.size(); i++) {
-    if (targets_[i]->output_type() != Target::NONE) {
-      out_ << "subninja ";
-      path_output_.WriteFile(out_, helper_.GetNinjaFileForTarget(targets_[i]));
-      out_ << std::endl;
-    }
-  }
-  out_ << std::endl;
-}
diff --git a/tools/gn/ninja_toolchain_writer.h b/tools/gn/ninja_toolchain_writer.h
deleted file mode 100644
index 71759efa80b3..000000000000
--- a/tools/gn/ninja_toolchain_writer.h
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_NINJA_TOOLCHAIN_WRITER_H_
-#define TOOLS_GN_NINJA_TOOLCHAIN_WRITER_H_
-
-#include <iosfwd>
-#include <vector>
-
-#include "tools/gn/ninja_helper.h"
-#include "tools/gn/path_output.h"
-
-class BuildSettings;
-class Settings;
-class Target;
-
-class NinjaToolchainWriter {
- public:
-  // Takes the settings for the toolchain, as well as the list of all targets
-  // assicoated with the toolchain.
-  static bool RunAndWriteFile(const Settings* settings,
-                              const std::vector<const Target*>& targets);
-
- private:
-  NinjaToolchainWriter(const Settings* settings,
-                       const std::vector<const Target*>& targets,
-                       std::ostream& out);
-  ~NinjaToolchainWriter();
-
-  void Run();
-
-  void WriteRules();
-  void WriteSubninjas();
-
-  const Settings* settings_;
-  std::vector<const Target*> targets_;
-  std::ostream& out_;
-  PathOutput path_output_;
-
-  NinjaHelper helper_;
-
-  DISALLOW_COPY_AND_ASSIGN(NinjaToolchainWriter);
-};
-
-#endif  // TOOLS_GN_NINJA_TOOLCHAIN_WRITER_H_
diff --git a/tools/gn/ninja_writer.cc b/tools/gn/ninja_writer.cc
deleted file mode 100644
index 8b69a3fc7353..000000000000
--- a/tools/gn/ninja_writer.cc
+++ /dev/null
@@ -1,64 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/ninja_writer.h"
-
-#include "tools/gn/location.h"
-#include "tools/gn/ninja_build_writer.h"
-#include "tools/gn/ninja_toolchain_writer.h"
-
-
-NinjaWriter::NinjaWriter(const BuildSettings* build_settings)
-    : build_settings_(build_settings) {
-}
-
-NinjaWriter::~NinjaWriter() {
-}
-
-// static
-bool NinjaWriter::RunAndWriteFiles(const BuildSettings* build_settings) {
-  NinjaWriter writer(build_settings);
-  return writer.WriteRootBuildfiles();
-}
-
-bool NinjaWriter::WriteRootBuildfiles() {
-  // Categorize all targets by toolchain.
-  typedef std::map<Label, std::vector<const Target*> > CategorizedMap;
-  CategorizedMap categorized;
-
-  std::vector<const Target*> all_targets;
-  build_settings_->target_manager().GetAllTargets(&all_targets);
-  for (size_t i = 0; i < all_targets.size(); i++) {
-    categorized[all_targets[i]->label().GetToolchainLabel()].push_back(
-        all_targets[i]);
-  }
-
-  Label default_label =
-      build_settings_->toolchain_manager().GetDefaultToolchainUnlocked();
-
-  // Write out the toolchain buildfiles, and also accumulate the set of
-  // all settings and find the list of targets in the default toolchain.
-  std::vector<const Settings*> all_settings;
-  const std::vector<const Target*>* default_targets = NULL;
-  for (CategorizedMap::const_iterator i = categorized.begin();
-       i != categorized.end(); ++i) {
-    const Settings* settings;
-    {
-      base::AutoLock lock(build_settings_->item_tree().lock());
-      Err ignored;
-      settings =
-          build_settings_->toolchain_manager().GetSettingsForToolchainLocked(
-              LocationRange(), i->first, &ignored);
-    }
-    if (i->first == default_label)
-      default_targets = &i->second;
-    all_settings.push_back(settings);
-    if (!NinjaToolchainWriter::RunAndWriteFile(settings, i->second))
-      return false;
-  }
-
-  // Write the root buildfile.
-  return NinjaBuildWriter::RunAndWriteFile(build_settings_, all_settings,
-                                           *default_targets);
-}
diff --git a/tools/gn/ninja_writer.h b/tools/gn/ninja_writer.h
deleted file mode 100644
index 9b6d2c1dbc21..000000000000
--- a/tools/gn/ninja_writer.h
+++ /dev/null
@@ -1,27 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_NINJA_WRITER_H_
-#define TOOLS_GN_NINJA_WRITER_H_
-
-#include "base/basictypes.h"
-
-class BuildSettings;
-
-class NinjaWriter {
- public:
-  static bool RunAndWriteFiles(const BuildSettings* build_settings);
-
- private:
-  NinjaWriter(const BuildSettings* build_settings);
-  ~NinjaWriter();
-
-  bool WriteRootBuildfiles();
-
-  const BuildSettings* build_settings_;
-
-  DISALLOW_COPY_AND_ASSIGN(NinjaWriter);
-};
-
-#endif  // TOOLS_GN_NINJA_WRITER_H_
diff --git a/tools/gn/operators.cc b/tools/gn/operators.cc
deleted file mode 100644
index afded9f887eb..000000000000
--- a/tools/gn/operators.cc
+++ /dev/null
@@ -1,573 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/operators.h"
-
-#include "base/strings/string_number_conversions.h"
-#include "tools/gn/err.h"
-#include "tools/gn/parse_tree.h"
-#include "tools/gn/scope.h"
-#include "tools/gn/token.h"
-#include "tools/gn/value.h"
-
-namespace {
-
-const char kSourcesName[] = "sources";
-
-// Applies the sources assignment filter from the given scope to each element
-// of source (can be a list or a string), appending it to dest if it doesn't
-// match.
-void AppendFilteredSourcesToValue(const Scope* scope,
-                                  const Value& source,
-                                  Value* dest) {
-  const PatternList* filter = scope->GetSourcesAssignmentFilter();
-
-  const std::vector<Value>& source_list = source.list_value();
-
-  if (source.type() == Value::STRING) {
-    if (!filter || filter->is_empty() ||
-        !filter->MatchesValue(source))
-      dest->list_value().push_back(source);
-    return;
-  }
-
-  // Otherwise source is a list.
-  DCHECK(source.type() == Value::LIST);
-  if (!filter || filter->is_empty()) {
-    // No filter, append everything.
-    for (size_t i = 0; i < source_list.size(); i++)
-      dest->list_value().push_back(source_list[i]);
-    return;
-  }
-
-  // Note: don't reserve() the dest vector here since that actually hurts
-  // the allocation pattern when the build script is doing multiple small
-  // additions.
-  for (size_t i = 0; i < source_list.size(); i++) {
-    if (!filter->MatchesValue(source_list[i]))
-      dest->list_value().push_back(source_list[i]);
-  }
-}
-
-void RemoveMatchesFromList(const BinaryOpNode* op_node,
-                           Value* list,
-                           const Value& to_remove,
-                           Err* err) {
-  std::vector<Value>& v = list->list_value();
-  switch (to_remove.type()) {
-    case Value::INTEGER:  // Filter out the individual int/string.
-    case Value::STRING: {
-      bool found_match = false;
-      for (size_t i = 0; i < v.size(); /* nothing */) {
-        if (v[i] == to_remove) {
-          found_match = true;
-          v.erase(v.begin() + i);
-        } else {
-          i++;
-        }
-      }
-      if (!found_match) {
-        *err = Err(to_remove.origin()->GetRange(), "Item not found",
-            "You were trying to remove \"" + to_remove.ToString() +
-            "\"\nfrom the list but it wasn't there.");
-      }
-      break;
-    }
-
-    case Value::LIST:  // Filter out each individual thing.
-      for (size_t i = 0; i < to_remove.list_value().size(); i++) {
-        // TODO(brettw) if the nested item is a list, we may want to search
-        // for the literal list rather than remote the items in it.
-        RemoveMatchesFromList(op_node, list, to_remove.list_value()[i], err);
-        if (err->has_error())
-          return;
-      }
-      break;
-
-    default:
-      break;
-  }
-}
-
-// Assignment -----------------------------------------------------------------
-
-Value ExecuteEquals(Scope* scope,
-                    const BinaryOpNode* op_node,
-                    const Token& left,
-                    const Value& right,
-                    Err* err) {
-  const Value* old_value = scope->GetValue(left.value(), false);
-  if (old_value) {
-    if (scope->IsSetButUnused(left.value())) {
-      // Throw an error for re-assigning without using the value first. The
-      // exception is that you can overwrite an empty list with another list
-      // since this is the way to get around the "can't overwrite a nonempty
-      // list with another nonempty list" restriction.
-      if (old_value->type() != Value::LIST ||
-          !old_value->list_value().empty()) {
-        *err = Err(op_node->left()->GetRange(), "Overwriting unused variable.",
-            "This overwrites a previous assignment to \"" +
-            left.value().as_string() + "\" that had no effect.");
-        err->AppendSubErr(Err(*scope->GetValue(left.value()),
-                              "Previously set here.",
-                              "Maybe you wanted \"+=\" to append instead?"));
-        return Value();
-      }
-    } else {
-      // Throw an error when overwriting a nonempty list with another nonempty
-      // list item. This is to detect the case where you write
-      //   defines = ["FOO"]
-      // and you overwrote inherited ones, when instead you mean to append:
-      //   defines += ["FOO"]
-      if (old_value->type() == Value::LIST &&
-          !old_value->list_value().empty() &&
-          right.type() == Value::LIST &&
-          !right.list_value().empty()) {
-        *err = Err(op_node->left()->GetRange(), "Replacing nonempty list.",
-            std::string("This overwrites a previously-defined nonempty list ") +
-            "(length " + base::IntToString(old_value->list_value().size()) +
-            ").");
-        err->AppendSubErr(Err(*old_value, "for previous definition",
-            "with another one (length " +
-            base::IntToString(right.list_value().size()) + "). Did you mean " +
-            "\"+=\" to append instead? If you\nreally want to do this, do\n  " +
-            left.value().as_string() + " = []\nbefore reassigning."));
-        return Value();
-      }
-    }
-  }
-  if (err->has_error())
-    return Value();
-
-  if (right.type() == Value::LIST && left.value() == kSourcesName) {
-    // Assigning to sources, filter the list. Here we do the filtering and
-    // copying in one step to save an extra list copy (the lists may be
-    // long).
-    Value* set_value = scope->SetValue(left.value(),
-                                       Value(op_node, Value::LIST), op_node);
-    set_value->list_value().reserve(right.list_value().size());
-    AppendFilteredSourcesToValue(scope, right, set_value);
-  } else {
-    // Normal value set, just copy it.
-    scope->SetValue(left.value(), right, op_node->right());
-  }
-  return Value();
-}
-
-// allow_type_conversion indicates if we're allowed to change the type of the
-// left value. This is set to true when doing +, and false when doing +=.
-void ValuePlusEquals(const Scope* scope,
-                     const BinaryOpNode* op_node,
-                     const Token& left_token,
-                     Value* left,
-                     const Value& right,
-                     bool allow_type_conversion,
-                     Err* err) {
-  switch (left->type()) {
-    // Left-hand-side int.
-    case Value::INTEGER:
-      switch (right.type()) {
-        case Value::INTEGER:  // int + int -> addition.
-          left->int_value() += right.int_value();
-          return;
-
-        case Value::STRING:  // int + string -> string concat.
-          if (allow_type_conversion) {
-            *left = Value(op_node,
-                base::Int64ToString(left->int_value()) + right.string_value());
-            return;
-          }
-          break;
-
-        default:
-          break;
-      }
-      break;
-
-    // Left-hand-side string.
-    case Value::STRING:
-      switch (right.type()) {
-        case Value::INTEGER:  // string + int -> string concat.
-          left->string_value().append(base::Int64ToString(right.int_value()));
-          return;
-
-        case Value::STRING:  // string + string -> string contat.
-          left->string_value().append(right.string_value());
-          return;
-
-        default:
-          break;
-      }
-      break;
-
-    // Left-hand-side list.
-    case Value::LIST:
-      switch (right.type()) {
-        case Value::INTEGER:  // list + integer -> list append.
-        case Value::STRING:  // list + string -> list append.
-          if (left_token.value() == kSourcesName)
-            AppendFilteredSourcesToValue(scope, right, left);
-          else
-            left->list_value().push_back(right);
-          return;
-
-        case Value::LIST:  // list + list -> list concat.
-          if (left_token.value() == kSourcesName) {
-            // Filter additions through the assignment filter.
-            AppendFilteredSourcesToValue(scope, right, left);
-          } else {
-            // Normal list concat.
-            for (size_t i = 0; i < right.list_value().size(); i++)
-              left->list_value().push_back(right.list_value()[i]);
-          }
-          return;
-
-        default:
-          break;
-      }
-
-    default:
-      break;
-  }
-
-  *err = Err(op_node->op(), "Incompatible types to add.",
-      std::string("I see a ") + Value::DescribeType(left->type()) + " and a " +
-      Value::DescribeType(right.type()) + ".");
-}
-
-Value ExecutePlusEquals(Scope* scope,
-                        const BinaryOpNode* op_node,
-                        const Token& left,
-                        const Value& right,
-                        Err* err) {
-  // We modify in-place rather than doing read-modify-write to avoid
-  // copying large lists.
-  Value* left_value =
-      scope->GetValueForcedToCurrentScope(left.value(), op_node);
-  if (!left_value) {
-    *err = Err(left, "Undefined variable for +=.",
-        "I don't have something with this name in scope now.");
-    return Value();
-  }
-  ValuePlusEquals(scope, op_node, left, left_value, right, false, err);
-  left_value->set_origin(op_node);
-  scope->MarkUnused(left.value());
-  return Value();
-}
-
-void ValueMinusEquals(const BinaryOpNode* op_node,
-                      Value* left,
-                      const Value& right,
-                      bool allow_type_conversion,
-                      Err* err) {
-  switch (left->type()) {
-    // Left-hand-side int.
-    case Value::INTEGER:
-      switch (right.type()) {
-        case Value::INTEGER:  // int - int -> subtraction.
-          left->int_value() -= right.int_value();
-          return;
-
-        default:
-          break;
-      }
-      break;
-
-    // Left-hand-side string.
-    case Value::STRING:
-      break;  // All are errors.
-
-    // Left-hand-side list.
-    case Value::LIST:
-      RemoveMatchesFromList(op_node, left, right, err);
-      return;
-
-    default:
-      break;
-  }
-
-  *err = Err(op_node->op(), "Incompatible types to add.",
-      std::string("I see a ") + Value::DescribeType(left->type()) + " and a " +
-      Value::DescribeType(right.type()) + ".");
-}
-
-Value ExecuteMinusEquals(Scope* scope,
-                         const BinaryOpNode* op_node,
-                         const Token& left,
-                         const Value& right,
-                         Err* err) {
-  Value* left_value =
-      scope->GetValueForcedToCurrentScope(left.value(), op_node);
-  if (!left_value) {
-    *err = Err(left, "Undefined variable for -=.",
-        "I don't have something with this name in scope now.");
-    return Value();
-  }
-  ValueMinusEquals(op_node, left_value, right, false, err);
-  left_value->set_origin(op_node);
-  scope->MarkUnused(left.value());
-  return Value();
-}
-
-// Plus/Minus -----------------------------------------------------------------
-
-Value ExecutePlus(Scope* scope,
-                  const BinaryOpNode* op_node,
-                  const Value& left,
-                  const Value& right,
-                  Err* err) {
-  Value ret = left;
-  ValuePlusEquals(scope, op_node, Token(), &ret, right, true, err);
-  ret.set_origin(op_node);
-  return ret;
-}
-
-Value ExecuteMinus(Scope* scope,
-                   const BinaryOpNode* op_node,
-                   const Value& left,
-                   const Value& right,
-                   Err* err) {
-  Value ret = left;
-  ValueMinusEquals(op_node, &ret, right, true, err);
-  ret.set_origin(op_node);
-  return ret;
-}
-
-// Comparison -----------------------------------------------------------------
-
-Value ExecuteEqualsEquals(Scope* scope,
-                          const BinaryOpNode* op_node,
-                          const Value& left,
-                          const Value& right,
-                          Err* err) {
-  if (left == right)
-    return Value(op_node, 1);
-  return Value(op_node, 0);
-}
-
-Value ExecuteNotEquals(Scope* scope,
-                       const BinaryOpNode* op_node,
-                       const Value& left,
-                       const Value& right,
-                       Err* err) {
-  // Evaluate in terms of ==.
-  Value result = ExecuteEqualsEquals(scope, op_node, left, right, err);
-  result.int_value() = static_cast<int64>(!result.int_value());
-  return result;
-}
-
-Value FillNeedsToIntegersError(const BinaryOpNode* op_node,
-                               const Value& left,
-                               const Value& right,
-                               Err* err) {
-  *err = Err(op_node, "Comparison requires two integers.",
-             "This operator can only compare two integers.");
-  err->AppendRange(left.origin()->GetRange());
-  err->AppendRange(right.origin()->GetRange());
-  return Value();
-}
-
-Value ExecuteLessEquals(Scope* scope,
-                        const BinaryOpNode* op_node,
-                        const Value& left,
-                        const Value& right,
-                        Err* err) {
-  if (left.type() != Value::INTEGER || right.type() != Value::INTEGER)
-    return FillNeedsToIntegersError(op_node, left, right, err);
-  return Value(op_node, left.int_value() <= right.int_value());
-}
-
-Value ExecuteGreaterEquals(Scope* scope,
-                           const BinaryOpNode* op_node,
-                           const Value& left,
-                           const Value& right,
-                           Err* err) {
-  if (left.type() != Value::INTEGER || right.type() != Value::INTEGER)
-    return FillNeedsToIntegersError(op_node, left, right, err);
-  return Value(op_node, left.int_value() >= right.int_value());
-}
-
-Value ExecuteGreater(Scope* scope,
-                     const BinaryOpNode* op_node,
-                     const Value& left,
-                     const Value& right,
-                     Err* err) {
-  if (left.type() != Value::INTEGER || right.type() != Value::INTEGER)
-    return FillNeedsToIntegersError(op_node, left, right, err);
-  return Value(op_node, left.int_value() > right.int_value());
-}
-
-Value ExecuteLess(Scope* scope,
-                  const BinaryOpNode* op_node,
-                  const Value& left,
-                  const Value& right,
-                  Err* err) {
-  if (left.type() != Value::INTEGER || right.type() != Value::INTEGER)
-    return FillNeedsToIntegersError(op_node, left, right, err);
-  return Value(op_node, left.int_value() < right.int_value());
-}
-
-// Binary ----------------------------------------------------------------------
-
-Value ExecuteOr(Scope* scope,
-                const BinaryOpNode* op_node,
-                const Value& left,
-                const Value& right,
-                Err* err) {
-  return Value(op_node,
-      static_cast<int64>(left.InterpretAsInt() || right.InterpretAsInt()));
-}
-
-Value ExecuteAnd(Scope* scope,
-                 const BinaryOpNode* op_node,
-                 const Value& left,
-                 const Value& right,
-                 Err* err) {
-  return Value(op_node,
-      static_cast<int64>(left.InterpretAsInt() && right.InterpretAsInt()));
-}
-
-}  // namespace
-
-// ----------------------------------------------------------------------------
-
-bool IsUnaryOperator(const Token& token) {
-  if (token.type() != Token::OPERATOR)
-    return false;
-  return token.value() == "!";
-}
-
-bool IsBinaryOperator(const Token& token) {
-  if (token.type() != Token::OPERATOR)
-    return false;
-  return token.value() == "=" ||
-         token.value() == "+=" ||
-         token.value() == "-=" ||
-         token.value() == "+" ||
-         token.value() == "-" ||
-         token.value() == "==" ||
-         token.value() == "!=" ||
-         token.value() == "<=" ||
-         token.value() == ">=" ||
-         token.value() == "<" ||
-         token.value() == ">" ||
-         token.value() == "&&" ||
-         token.value() == "||";
-}
-
-bool IsFunctionCallArgBeginScoper(const Token& token) {
-  return token.IsScoperEqualTo("(");
-}
-
-bool IsFunctionCallArgEndScoper(const Token& token) {
-  return token.IsScoperEqualTo(")");
-}
-
-bool IsScopeBeginScoper(const Token& token) {
-  return token.IsScoperEqualTo("{");
-}
-
-bool IsScopeEndScoper(const Token& token) {
-  return token.IsScoperEqualTo("}");
-}
-
-Value ExecuteUnaryOperator(Scope* scope,
-                           const UnaryOpNode* op_node,
-                           const Value& expr,
-                           Err* err) {
-  DCHECK(op_node->op().IsOperatorEqualTo("!"));
-  return Value(op_node, !expr.InterpretAsInt());
-}
-
-Value ExecuteBinaryOperator(Scope* scope,
-                            const BinaryOpNode* op_node,
-                            const ParseNode* left,
-                            const ParseNode* right,
-                            Err* err) {
-  const Token& op = op_node->op();
-
-  // First handle the ones that take an lvalue.
-  if (op.IsOperatorEqualTo("=") ||
-      op.IsOperatorEqualTo("+=") ||
-      op.IsOperatorEqualTo("-=")) {
-    const IdentifierNode* left_id = left->AsIdentifier();
-    if (!left_id) {
-      *err = Err(op, "Operator requires an lvalue.",
-                 "This thing on the left is not an idenfitier.");
-      err->AppendRange(left->GetRange());
-      return Value();
-    }
-    const Token& dest = left_id->value();
-
-    Value right_value = right->Execute(scope, err);
-    if (err->has_error())
-      return Value();
-    if (right_value.type() == Value::NONE) {
-      *err = Err(op, "Operator requires an rvalue.",
-                 "This thing on the right does not evaluate to a value.");
-      err->AppendRange(right->GetRange());
-      return Value();
-    }
-
-    if (op.IsOperatorEqualTo("="))
-      return ExecuteEquals(scope, op_node, dest, right_value, err);
-    if (op.IsOperatorEqualTo("+="))
-      return ExecutePlusEquals(scope, op_node, dest, right_value, err);
-    if (op.IsOperatorEqualTo("-="))
-      return ExecuteMinusEquals(scope, op_node, dest, right_value, err);
-    NOTREACHED();
-    return Value();
-  }
-
-  // Left value.
-  Value left_value = left->Execute(scope, err);
-  if (err->has_error())
-    return Value();
-  if (left_value.type() == Value::NONE) {
-    *err = Err(op, "Operator requires an value.",
-               "This thing on the left does not evaluate to a value.");
-    err->AppendRange(left->GetRange());
-    return Value();
-  }
-
-  // Right value. Note: don't move this above to share code with the lvalue
-  // version since in this case we want to execute the left side first.
-  Value right_value = right->Execute(scope, err);
-  if (err->has_error())
-    return Value();
-  if (right_value.type() == Value::NONE) {
-    *err = Err(op, "Operator requires an value.",
-               "This thing on the right does not evaluate to a value.");
-    err->AppendRange(right->GetRange());
-    return Value();
-  }
-
-  // +, -.
-  if (op.IsOperatorEqualTo("-"))
-    return ExecuteMinus(scope, op_node, left_value, right_value, err);
-  if (op.IsOperatorEqualTo("+"))
-    return ExecutePlus(scope, op_node, left_value, right_value, err);
-
-  // Comparisons.
-  if (op.IsOperatorEqualTo("=="))
-    return ExecuteEqualsEquals(scope, op_node, left_value, right_value, err);
-  if (op.IsOperatorEqualTo("!="))
-    return ExecuteNotEquals(scope, op_node, left_value, right_value, err);
-  if (op.IsOperatorEqualTo(">="))
-    return ExecuteGreaterEquals(scope, op_node, left_value, right_value, err);
-  if (op.IsOperatorEqualTo("<="))
-    return ExecuteLessEquals(scope, op_node, left_value, right_value, err);
-  if (op.IsOperatorEqualTo(">"))
-    return ExecuteGreater(scope, op_node, left_value, right_value, err);
-  if (op.IsOperatorEqualTo("<"))
-    return ExecuteLess(scope, op_node, left_value, right_value, err);
-
-  // ||, &&.
-  if (op.IsOperatorEqualTo("||"))
-    return ExecuteOr(scope, op_node, left_value, right_value, err);
-  if (op.IsOperatorEqualTo("&&"))
-    return ExecuteAnd(scope, op_node, left_value, right_value, err);
-
-  return Value();
-}
diff --git a/tools/gn/operators.h b/tools/gn/operators.h
deleted file mode 100644
index 3401c225ba0f..000000000000
--- a/tools/gn/operators.h
+++ /dev/null
@@ -1,35 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_OPERATORS_H_
-#define TOOLS_GN_OPERATORS_H_
-
-class BinaryOpNode;
-class Err;
-class ParseNode;
-class Scope;
-class Token;
-class UnaryOpNode;
-class Value;
-
-bool IsUnaryOperator(const Token& token);
-bool IsBinaryOperator(const Token& token);
-
-bool IsFunctionCallArgBeginScoper(const Token& token);  // "("
-bool IsFunctionCallArgEndScoper(const Token& token);  // ")"
-
-bool IsScopeBeginScoper(const Token& token);  // "{"
-bool IsScopeEndScoper(const Token& token);  // "}"
-
-Value ExecuteUnaryOperator(Scope* scope,
-                           const UnaryOpNode* op_node,
-                           const Value& value,
-                           Err* err);
-Value ExecuteBinaryOperator(Scope* scope,
-                            const BinaryOpNode* op_node,
-                            const ParseNode* left,
-                            const ParseNode* right,
-                            Err* err);
-
-#endif  // TOOLS_GN_OPERATORS_H_
diff --git a/tools/gn/output_file.h b/tools/gn/output_file.h
deleted file mode 100644
index 9c5e4b2c205a..000000000000
--- a/tools/gn/output_file.h
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_OUTPUT_FILE_H_
-#define TOOLS_GN_OUTPUT_FILE_H_
-
-#include <string>
-
-#include "tools/gn/build_settings.h"
-#include "tools/gn/source_file.h"
-
-// A simple wrapper around a string that indicates the string is a path
-// relative to the output directory.
-class OutputFile {
- public:
-  OutputFile() : value_() {}
-  explicit OutputFile(const base::StringPiece& str)
-      : value_(str.data(), str.size()) {
-  }
-
-  std::string& value() { return value_; }
-  const std::string& value() const { return value_; }
-
-  // Converts to a SourceFile by prepending the build directory to the file.
-  SourceFile GetSourceFile(const BuildSettings* build_settings) const {
-    return SourceFile(build_settings->build_dir().value() + value_);
-  }
-
-  bool operator==(const OutputFile& other) const {
-    return value_ == other.value_;
-  }
-  bool operator!=(const OutputFile& other) const {
-    return value_ != other.value_;
-  }
-
- private:
-  std::string value_;
-};
-
-#endif
diff --git a/tools/gn/output_stream.h b/tools/gn/output_stream.h
deleted file mode 100644
index 6f39c8666120..000000000000
--- a/tools/gn/output_stream.h
+++ /dev/null
@@ -1,42 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_OUTPUT_STREAM_H_
-#define TOOLS_GN_OUTPUT_STREAM_H_
-
-class OutputStream {
- public:
-
-
-
-  OutputStream& WriteBuffer(const char* buf, size_t len);
-  OutputStream& WriteInt(int i);
-
-  // Write a literal.
-  // This template expansion prevents having to look for nulls.
-  template<size_t size> OutputStream& Write(const char (&buf)[size]) {
-    return WriteBuffer(buf, size);
-  }
-
-  // Write a literal string.
-  OutputStream& Write(const std::string& str) {
-    return WriteBuffer(str.c_str(), str.size());
-  }
-
-  // Quotes if necessary, and does necessary escaping. If more than one
-  // input is provided, the results will be concatenated together (useful
-  // for constructing paths without a temporary buffer).
-  OutputStream& WritePath(const std::string& s);
-  OutputStream& WritePath(const std::string& s0,
-                          const std::string& s1);
-  OutputStream& WritePath(const std::string& s0,
-                          const std::string& s1,
-                          const std::string& s2);
-
-  OutputStream& EndLine() {
-    return WriteBuffer("\n", 1);
-  }
-};
-
-#endif  // TOOLS_GN_OUTPUT_STREAM_H_
diff --git a/tools/gn/parse_tree.cc b/tools/gn/parse_tree.cc
deleted file mode 100644
index 0f8497097a1a..000000000000
--- a/tools/gn/parse_tree.cc
+++ /dev/null
@@ -1,472 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/parse_tree.h"
-
-#include <string>
-
-#include "base/stl_util.h"
-#include "base/strings/string_number_conversions.h"
-#include "tools/gn/functions.h"
-#include "tools/gn/operators.h"
-#include "tools/gn/scope.h"
-#include "tools/gn/string_utils.h"
-
-namespace {
-
-std::string IndentFor(int value) {
-  std::string ret;
-  for (int i = 0; i < value; i++)
-    ret.append(" ");
-  return ret;
-}
-
-}  // namespace
-
-ParseNode::ParseNode() {
-}
-
-ParseNode::~ParseNode() {
-}
-
-const AccessorNode* ParseNode::AsAccessor() const { return NULL; }
-const BinaryOpNode* ParseNode::AsBinaryOp() const { return NULL; }
-const BlockNode* ParseNode::AsBlock() const { return NULL; }
-const ConditionNode* ParseNode::AsConditionNode() const { return NULL; }
-const FunctionCallNode* ParseNode::AsFunctionCall() const { return NULL; }
-const IdentifierNode* ParseNode::AsIdentifier() const { return NULL; }
-const ListNode* ParseNode::AsList() const { return NULL; }
-const LiteralNode* ParseNode::AsLiteral() const { return NULL; }
-const UnaryOpNode* ParseNode::AsUnaryOp() const { return NULL; }
-
-// AccessorNode ---------------------------------------------------------------
-
-AccessorNode::AccessorNode() {
-}
-
-AccessorNode::~AccessorNode() {
-}
-
-const AccessorNode* AccessorNode::AsAccessor() const {
-  return this;
-}
-
-Value AccessorNode::Execute(Scope* scope, Err* err) const {
-  Value index_value = index_->Execute(scope, err);
-  if (err->has_error())
-    return Value();
-  if (!index_value.VerifyTypeIs(Value::INTEGER, err))
-    return Value();
-
-  const Value* base_value = scope->GetValue(base_.value(), true);
-  if (!base_value) {
-    *err = MakeErrorDescribing("Undefined identifier.");
-    return Value();
-  }
-  if (!base_value->VerifyTypeIs(Value::LIST, err))
-    return Value();
-
-  int64 index_int = index_value.int_value();
-  if (index_int < 0) {
-    *err = Err(index_->GetRange(), "Negative array subscript.",
-        "You gave me " + base::Int64ToString(index_int) + ".");
-    return Value();
-  }
-  size_t index_sizet = static_cast<size_t>(index_int);
-  if (index_sizet >= base_value->list_value().size()) {
-    *err = Err(index_->GetRange(), "Array subscript out of range.",
-        "You gave me " + base::Int64ToString(index_int) +
-        " but I was expecting something from 0 to " +
-        base::Int64ToString(
-            static_cast<int64>(base_value->list_value().size()) - 1) +
-        ", inclusive.");
-    return Value();
-  }
-
-  // Doing this assumes that there's no way in the language to do anything
-  // between the time the reference is created and the time that the reference
-  // is used. If there is, this will crash! Currently, this is just used for
-  // array accesses where this "shouldn't" happen.
-  return base_value->list_value()[index_sizet];
-}
-
-LocationRange AccessorNode::GetRange() const {
-  return LocationRange(base_.location(), index_->GetRange().end());
-}
-
-Err AccessorNode::MakeErrorDescribing(const std::string& msg,
-                                      const std::string& help) const {
-  return Err(GetRange(), msg, help);
-}
-
-void AccessorNode::Print(std::ostream& out, int indent) const {
-  out << IndentFor(indent) << "ACCESSOR\n";
-  out << IndentFor(indent + 1) << base_.value() << "\n";
-  index_->Print(out, indent + 1);
-}
-
-// BinaryOpNode ---------------------------------------------------------------
-
-BinaryOpNode::BinaryOpNode() {
-}
-
-BinaryOpNode::~BinaryOpNode() {
-}
-
-const BinaryOpNode* BinaryOpNode::AsBinaryOp() const {
-  return this;
-}
-
-Value BinaryOpNode::Execute(Scope* scope, Err* err) const {
-  return ExecuteBinaryOperator(scope, this, left_.get(), right_.get(), err);
-}
-
-LocationRange BinaryOpNode::GetRange() const {
-  return left_->GetRange().Union(right_->GetRange());
-}
-
-Err BinaryOpNode::MakeErrorDescribing(const std::string& msg,
-                                      const std::string& help) const {
-  return Err(op_, msg, help);
-}
-
-void BinaryOpNode::Print(std::ostream& out, int indent) const {
-  out << IndentFor(indent) << "BINARY(" << op_.value() << ")\n";
-  left_->Print(out, indent + 1);
-  right_->Print(out, indent + 1);
-}
-
-// BlockNode ------------------------------------------------------------------
-
-BlockNode::BlockNode(bool has_scope)
-    : has_scope_(has_scope),
-      begin_token_(NULL),
-      end_token_(NULL) {
-}
-
-BlockNode::~BlockNode() {
-  STLDeleteContainerPointers(statements_.begin(), statements_.end());
-}
-
-const BlockNode* BlockNode::AsBlock() const {
-  return this;
-}
-
-Value BlockNode::Execute(Scope* containing_scope, Err* err) const {
-  if (has_scope_) {
-    Scope our_scope(containing_scope);
-    Value ret = ExecuteBlockInScope(&our_scope, err);
-    if (err->has_error())
-      return Value();
-
-    // Check for unused vars in the scope.
-    //our_scope.CheckForUnusedVars(err);
-    return ret;
-  }
-  return ExecuteBlockInScope(containing_scope, err);
-}
-
-LocationRange BlockNode::GetRange() const {
-  if (begin_token_ && end_token_) {
-    return begin_token_->range().Union(end_token_->range());
-  }
-  return LocationRange();  // TODO(brettw) indicate the entire file somehow.
-}
-
-Err BlockNode::MakeErrorDescribing(const std::string& msg,
-                                   const std::string& help) const {
-  if (begin_token_)
-    return Err(*begin_token_, msg, help);
-  // TODO(brettw) this should have the beginning of the file in it or something.
-  return Err(Location(NULL, 1, 1), msg, help);
-}
-
-void BlockNode::Print(std::ostream& out, int indent) const {
-  out << IndentFor(indent) << "BLOCK\n";
-  for (size_t i = 0; i < statements_.size(); i++)
-    statements_[i]->Print(out, indent + 1);
-}
-
-Value BlockNode::ExecuteBlockInScope(Scope* our_scope, Err* err) const {
-  for (size_t i = 0; i < statements_.size() && !err->has_error(); i++) {
-    // Check for trying to execute things with no side effects in a block.
-    const ParseNode* cur = statements_[i];
-    if (cur->AsList() || cur->AsLiteral() || cur->AsUnaryOp() ||
-        cur->AsIdentifier()) {
-      *err = cur->MakeErrorDescribing(
-          "This statment has no effect.",
-          "Either delete it or do something with the result.");
-      return Value();
-    }
-    cur->Execute(our_scope, err);
-  }
-  return Value();
-}
-
-// ConditionNode --------------------------------------------------------------
-
-ConditionNode::ConditionNode() {
-}
-
-ConditionNode::~ConditionNode() {
-}
-
-const ConditionNode* ConditionNode::AsConditionNode() const {
-  return this;
-}
-
-Value ConditionNode::Execute(Scope* scope, Err* err) const {
-  Value condition_result = condition_->Execute(scope, err);
-  if (err->has_error())
-    return Value();
-  if (condition_result.type() == Value::NONE) {
-    *err = condition_->MakeErrorDescribing(
-        "This does not evaluate to a value.",
-        "Please give me something to work with for the if statement.");
-    err->AppendRange(if_token_.range());
-    return Value();
-  }
-
-  if (condition_result.InterpretAsInt()) {
-    if_true_->ExecuteBlockInScope(scope, err);
-  } else if (if_false_) {
-    // The else block is optional. It's either another condition (for an
-    // "else if" and we can just Execute it and the condition will handle
-    // the scoping) or it's a block indicating an "else" in which ase we
-    // need to be sure it inherits our scope.
-    const BlockNode* if_false_block = if_false_->AsBlock();
-    if (if_false_block)
-      if_false_block->ExecuteBlockInScope(scope, err);
-    else
-      if_false_->Execute(scope, err);
-  }
-
-  return Value();
-}
-
-LocationRange ConditionNode::GetRange() const {
-  if (if_false_)
-    return if_token_.range().Union(if_false_->GetRange());
-  return if_token_.range().Union(if_true_->GetRange());
-}
-
-Err ConditionNode::MakeErrorDescribing(const std::string& msg,
-                                       const std::string& help) const {
-  return Err(if_token_, msg, help);
-}
-
-void ConditionNode::Print(std::ostream& out, int indent) const {
-  out << IndentFor(indent) << "CONDITION\n";
-  condition_->Print(out, indent + 1);
-  if_true_->Print(out, indent + 1);
-  if (if_false_)
-    if_false_->Print(out, indent + 1);
-}
-
-// FunctionCallNode -----------------------------------------------------------
-
-FunctionCallNode::FunctionCallNode() {
-}
-
-FunctionCallNode::~FunctionCallNode() {
-}
-
-const FunctionCallNode* FunctionCallNode::AsFunctionCall() const {
-  return this;
-}
-
-Value FunctionCallNode::Execute(Scope* scope, Err* err) const {
-  Value args = args_->Execute(scope, err);
-  if (err->has_error())
-    return Value();
-  return ExecuteFunction(scope, this, args.list_value(), block_.get(), err);
-}
-
-LocationRange FunctionCallNode::GetRange() const {
-  if (block_)
-    return function_.range().Union(block_->GetRange());
-  return function_.range().Union(args_->GetRange());
-}
-
-Err FunctionCallNode::MakeErrorDescribing(const std::string& msg,
-                                          const std::string& help) const {
-  return Err(function_, msg, help);
-}
-
-void FunctionCallNode::Print(std::ostream& out, int indent) const {
-  out << IndentFor(indent) << "FUNCTION(" << function_.value() << ")\n";
-  args_->Print(out, indent + 1);
-  if (block_)
-    block_->Print(out, indent + 1);
-}
-
-// IdentifierNode --------------------------------------------------------------
-
-IdentifierNode::IdentifierNode() {
-}
-
-IdentifierNode::IdentifierNode(const Token& token) : value_(token) {
-}
-
-IdentifierNode::~IdentifierNode() {
-}
-
-const IdentifierNode* IdentifierNode::AsIdentifier() const {
-  return this;
-}
-
-Value IdentifierNode::Execute(Scope* scope, Err* err) const {
-  const Value* result = scope->GetValue(value_.value(), true);
-  if (!result) {
-    *err = MakeErrorDescribing("Undefined identifier");
-    return Value();
-  }
-  return *result;
-}
-
-LocationRange IdentifierNode::GetRange() const {
-  return value_.range();
-}
-
-Err IdentifierNode::MakeErrorDescribing(const std::string& msg,
-                                        const std::string& help) const {
-  return Err(value_, msg, help);
-}
-
-void IdentifierNode::Print(std::ostream& out, int indent) const {
-  out << IndentFor(indent) << "IDENTIFIER(" << value_.value() << ")\n";
-}
-
-// ListNode -------------------------------------------------------------------
-
-ListNode::ListNode() {
-}
-
-ListNode::~ListNode() {
-  STLDeleteContainerPointers(contents_.begin(), contents_.end());
-}
-
-const ListNode* ListNode::AsList() const {
-  return this;
-}
-
-Value ListNode::Execute(Scope* scope, Err* err) const {
-  Value result_value(this, Value::LIST);
-  std::vector<Value>& results = result_value.list_value();
-  results.resize(contents_.size());
-
-  for (size_t i = 0; i < contents_.size(); i++) {
-    const ParseNode* cur = contents_[i];
-    results[i] = cur->Execute(scope, err);
-    if (err->has_error())
-      return Value();
-    if (results[i].type() == Value::NONE) {
-      *err = cur->MakeErrorDescribing(
-          "This does not evaluate to a value.",
-          "I can't do something with nothing.");
-      return Value();
-    }
-  }
-  return result_value;
-}
-
-LocationRange ListNode::GetRange() const {
-  return LocationRange(begin_token_.location(), end_token_.location());
-}
-
-Err ListNode::MakeErrorDescribing(const std::string& msg,
-                                  const std::string& help) const {
-  return Err(begin_token_, msg, help);
-}
-
-void ListNode::Print(std::ostream& out, int indent) const {
-  out << IndentFor(indent) << "LIST\n";
-  for (size_t i = 0; i < contents_.size(); i++)
-    contents_[i]->Print(out, indent + 1);
-}
-
-// LiteralNode -----------------------------------------------------------------
-
-LiteralNode::LiteralNode() {
-}
-
-LiteralNode::LiteralNode(const Token& token) : value_(token) {
-}
-
-LiteralNode::~LiteralNode() {
-}
-
-const LiteralNode* LiteralNode::AsLiteral() const {
-  return this;
-}
-
-Value LiteralNode::Execute(Scope* scope, Err* err) const {
-  switch (value_.type()) {
-    case Token::INTEGER: {
-      int64 result_int;
-      if (!base::StringToInt64(value_.value(), &result_int)) {
-        *err = MakeErrorDescribing("This does not look like an integer");
-        return Value();
-      }
-      return Value(this, result_int);
-    }
-    case Token::STRING: {
-      // TODO(brettw) Unescaping probably needs to be moved & improved.
-      // The input value includes the quotes around the string, strip those
-      // off and unescape.
-      Value v(this, Value::STRING);
-      ExpandStringLiteral(scope, value_, &v, err);
-      return v;
-    }
-    default:
-      NOTREACHED();
-      return Value();
-  }
-}
-
-LocationRange LiteralNode::GetRange() const {
-  return value_.range();
-}
-
-Err LiteralNode::MakeErrorDescribing(const std::string& msg,
-                                     const std::string& help) const {
-  return Err(value_, msg, help);
-}
-
-void LiteralNode::Print(std::ostream& out, int indent) const {
-  out << IndentFor(indent) << "LITERAL(" << value_.value() << ")\n";
-}
-
-// UnaryOpNode ----------------------------------------------------------------
-
-UnaryOpNode::UnaryOpNode() {
-}
-
-UnaryOpNode::~UnaryOpNode() {
-}
-
-const UnaryOpNode* UnaryOpNode::AsUnaryOp() const {
-  return this;
-}
-
-Value UnaryOpNode::Execute(Scope* scope, Err* err) const {
-  Value operand_value = operand_->Execute(scope, err);
-  if (err->has_error())
-    return Value();
-  return ExecuteUnaryOperator(scope, this, operand_value, err);
-}
-
-LocationRange UnaryOpNode::GetRange() const {
-  return op_.range().Union(operand_->GetRange());
-}
-
-Err UnaryOpNode::MakeErrorDescribing(const std::string& msg,
-                                     const std::string& help) const {
-  return Err(op_, msg, help);
-}
-
-void UnaryOpNode::Print(std::ostream& out, int indent) const {
-  out << IndentFor(indent) << "UNARY(" << op_.value() << ")\n";
-  operand_->Print(out, indent + 1);
-}
diff --git a/tools/gn/parse_tree.h b/tools/gn/parse_tree.h
deleted file mode 100644
index 09646e51ac4c..000000000000
--- a/tools/gn/parse_tree.h
+++ /dev/null
@@ -1,366 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_PARSE_TREE_H_
-#define TOOLS_GN_PARSE_TREE_H_
-
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/compiler_specific.h"
-#include "base/memory/scoped_ptr.h"
-#include "tools/gn/err.h"
-#include "tools/gn/token.h"
-#include "tools/gn/value.h"
-
-class AccessorNode;
-class BinaryOpNode;
-class BlockNode;
-class ConditionNode;
-class FunctionCallNode;
-class IdentifierNode;
-class ListNode;
-class LiteralNode;
-class Scope;
-class UnaryOpNode;
-
-// ParseNode -------------------------------------------------------------------
-
-// A node in the AST.
-class ParseNode {
- public:
-  ParseNode();
-  virtual ~ParseNode();
-
-  virtual const AccessorNode* AsAccessor() const;
-  virtual const BinaryOpNode* AsBinaryOp() const;
-  virtual const BlockNode* AsBlock() const;
-  virtual const ConditionNode* AsConditionNode() const;
-  virtual const FunctionCallNode* AsFunctionCall() const;
-  virtual const IdentifierNode* AsIdentifier() const;
-  virtual const ListNode* AsList() const;
-  virtual const LiteralNode* AsLiteral() const;
-  virtual const UnaryOpNode* AsUnaryOp() const;
-
-  virtual Value Execute(Scope* scope, Err* err) const = 0;
-
-  virtual LocationRange GetRange() const = 0;
-
-  // Returns an error with the given messages and the range set to something
-  // that indicates this node.
-  virtual Err MakeErrorDescribing(
-      const std::string& msg,
-      const std::string& help = std::string()) const = 0;
-
-  // Prints a representation of this node to the given string, indenting
-  // by the given number of spaces.
-  virtual void Print(std::ostream& out, int indent) const = 0;
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(ParseNode);
-};
-
-// AccessorNode ----------------------------------------------------------------
-
-// Access an array element.
-//
-// If we need to add support for member variables like "variable.len" I was
-// thinking this would also handle that case.
-class AccessorNode : public ParseNode {
- public:
-  AccessorNode();
-  virtual ~AccessorNode();
-
-  virtual const AccessorNode* AsAccessor() const OVERRIDE;
-  virtual Value Execute(Scope* scope, Err* err) const OVERRIDE;
-  virtual LocationRange GetRange() const OVERRIDE;
-  virtual Err MakeErrorDescribing(
-      const std::string& msg,
-      const std::string& help = std::string()) const OVERRIDE;
-  virtual void Print(std::ostream& out, int indent) const OVERRIDE;
-
-  // Base is the thing on the left of the [], currently always required to be
-  // an identifier token.
-  const Token& base() const { return base_; }
-  void set_base(const Token& b) { base_ = b; }
-
-  // Index is the expression inside the [].
-  const ParseNode* index() const { return index_.get(); }
-  void set_index(scoped_ptr<ParseNode> i) { index_ = i.Pass(); }
-
- private:
-  Token base_;
-  scoped_ptr<ParseNode> index_;
-
-  DISALLOW_COPY_AND_ASSIGN(AccessorNode);
-};
-
-// BinaryOpNode ----------------------------------------------------------------
-
-class BinaryOpNode : public ParseNode {
- public:
-  BinaryOpNode();
-  virtual ~BinaryOpNode();
-
-  virtual const BinaryOpNode* AsBinaryOp() const OVERRIDE;
-  virtual Value Execute(Scope* scope, Err* err) const OVERRIDE;
-  virtual LocationRange GetRange() const OVERRIDE;
-  virtual Err MakeErrorDescribing(
-      const std::string& msg,
-      const std::string& help = std::string()) const OVERRIDE;
-  virtual void Print(std::ostream& out, int indent) const OVERRIDE;
-
-  const Token& op() const { return op_; }
-  void set_op(const Token& t) { op_ = t; }
-
-  const ParseNode* left() const { return left_.get(); }
-  void set_left(scoped_ptr<ParseNode> left) {
-    left_ = left.Pass();
-  }
-
-  const ParseNode* right() const { return right_.get(); }
-  void set_right(scoped_ptr<ParseNode> right) {
-    right_ = right.Pass();
-  }
-
- private:
-  scoped_ptr<ParseNode> left_;
-  Token op_;
-  scoped_ptr<ParseNode> right_;
-
-  DISALLOW_COPY_AND_ASSIGN(BinaryOpNode);
-};
-
-// BlockNode -------------------------------------------------------------------
-
-class BlockNode : public ParseNode {
- public:
-  // Set has_scope if this block introduces a nested scope.
-  BlockNode(bool has_scope);
-  virtual ~BlockNode();
-
-  virtual const BlockNode* AsBlock() const OVERRIDE;
-  virtual Value Execute(Scope* scope, Err* err) const OVERRIDE;
-  virtual LocationRange GetRange() const OVERRIDE;
-  virtual Err MakeErrorDescribing(
-      const std::string& msg,
-      const std::string& help = std::string()) const OVERRIDE;
-  virtual void Print(std::ostream& out, int indent) const OVERRIDE;
-
-  void set_begin_token(const Token* t) { begin_token_ = t; }
-  void set_end_token(const Token* t) { end_token_ = t; }
-
-  const std::vector<ParseNode*>& statements() const { return statements_; }
-  void append_statement(scoped_ptr<ParseNode> s) {
-    statements_.push_back(s.release());
-  }
-
-  // Doesn't create a nested scope.
-  Value ExecuteBlockInScope(Scope* our_scope, Err* err) const;
-
- private:
-  bool has_scope_;
-
-  // Tokens corresponding to { and }, if any (may be NULL).
-  const Token* begin_token_;
-  const Token* end_token_;
-
-  // Owning pointers, use unique_ptr when we can use C++11.
-  std::vector<ParseNode*> statements_;
-
-  DISALLOW_COPY_AND_ASSIGN(BlockNode);
-};
-
-// ConditionNode ---------------------------------------------------------------
-
-class ConditionNode : public ParseNode {
- public:
-  ConditionNode();
-  virtual ~ConditionNode();
-
-  virtual const ConditionNode* AsConditionNode() const OVERRIDE;
-  virtual Value Execute(Scope* scope, Err* err) const OVERRIDE;
-  virtual LocationRange GetRange() const OVERRIDE;
-  virtual Err MakeErrorDescribing(
-      const std::string& msg,
-      const std::string& help = std::string()) const OVERRIDE;
-  virtual void Print(std::ostream& out, int indent) const OVERRIDE;
-
-  void set_if_token(const Token& token) { if_token_ = token; }
-
-  const ParseNode* condition() const { return condition_.get(); }
-  void set_condition(scoped_ptr<ParseNode> c) {
-    condition_ = c.Pass();
-  }
-
-  const BlockNode* if_true() const { return if_true_.get(); }
-  void set_if_true(scoped_ptr<BlockNode> t) {
-    if_true_ = t.Pass();
-  }
-
-  // This is either empty, a block (for the else clause), or another
-  // condition.
-  const ParseNode* if_false() const { return if_false_.get(); }
-  void set_if_false(scoped_ptr<ParseNode> f) {
-    if_false_ = f.Pass();
-  }
-
- private:
-  // Token corresponding to the "if" string.
-  Token if_token_;
-
-  scoped_ptr<ParseNode> condition_;  // Always non-null.
-  scoped_ptr<BlockNode> if_true_;  // Always non-null.
-  scoped_ptr<ParseNode> if_false_;  // May be null.
-
-  DISALLOW_COPY_AND_ASSIGN(ConditionNode);
-};
-
-// FunctionCallNode ------------------------------------------------------------
-
-class FunctionCallNode : public ParseNode {
- public:
-  FunctionCallNode();
-  virtual ~FunctionCallNode();
-
-  virtual const FunctionCallNode* AsFunctionCall() const OVERRIDE;
-  virtual Value Execute(Scope* scope, Err* err) const OVERRIDE;
-  virtual LocationRange GetRange() const OVERRIDE;
-  virtual Err MakeErrorDescribing(
-      const std::string& msg,
-      const std::string& help = std::string()) const OVERRIDE;
-  virtual void Print(std::ostream& out, int indent) const OVERRIDE;
-
-  const Token& function() const { return function_; }
-  void set_function(Token t) { function_ = t; }
-
-  const ListNode* args() const { return args_.get(); }
-  void set_args(scoped_ptr<ListNode> a) { args_ = a.Pass(); }
-
-  const BlockNode* block() const { return block_.get(); }
-  void set_block(scoped_ptr<BlockNode> b) { block_ = b.Pass(); }
-
- private:
-  Token function_;
-  scoped_ptr<ListNode> args_;
-  scoped_ptr<BlockNode> block_;  // May be null.
-
-  DISALLOW_COPY_AND_ASSIGN(FunctionCallNode);
-};
-
-// IdentifierNode --------------------------------------------------------------
-
-class IdentifierNode : public ParseNode {
- public:
-  IdentifierNode();
-  IdentifierNode(const Token& token);
-  virtual ~IdentifierNode();
-
-  virtual const IdentifierNode* AsIdentifier() const OVERRIDE;
-  virtual Value Execute(Scope* scope, Err* err) const OVERRIDE;
-  virtual LocationRange GetRange() const OVERRIDE;
-  virtual Err MakeErrorDescribing(
-      const std::string& msg,
-      const std::string& help = std::string()) const OVERRIDE;
-  virtual void Print(std::ostream& out, int indent) const OVERRIDE;
-
-  const Token& value() const { return value_; }
-  void set_value(const Token& t) { value_ = t; }
-
- private:
-  Token value_;
-
-  DISALLOW_COPY_AND_ASSIGN(IdentifierNode);
-};
-
-// ListNode --------------------------------------------------------------------
-
-class ListNode : public ParseNode {
- public:
-  ListNode();
-  virtual ~ListNode();
-
-  virtual const ListNode* AsList() const OVERRIDE;
-  virtual Value Execute(Scope* scope, Err* err) const OVERRIDE;
-  virtual LocationRange GetRange() const OVERRIDE;
-  virtual Err MakeErrorDescribing(
-      const std::string& msg,
-      const std::string& help = std::string()) const OVERRIDE;
-  virtual void Print(std::ostream& out, int indent) const OVERRIDE;
-
-  void set_begin_token(const Token& t) { begin_token_ = t; }
-  void set_end_token(const Token& t) { end_token_ = t; }
-
-  void append_item(scoped_ptr<ParseNode> s) {
-    contents_.push_back(s.release());
-  }
-  const std::vector<ParseNode*>& contents() const { return contents_; }
-
- private:
-  // Tokens corresponding to the [ and ].
-  Token begin_token_;
-  Token end_token_;
-
-  // Owning pointers, use unique_ptr when we can use C++11.
-  std::vector<ParseNode*> contents_;
-
-  DISALLOW_COPY_AND_ASSIGN(ListNode);
-};
-
-// LiteralNode -----------------------------------------------------------------
-
-class LiteralNode : public ParseNode {
- public:
-  LiteralNode();
-  LiteralNode(const Token& token);
-  virtual ~LiteralNode();
-
-  virtual const LiteralNode* AsLiteral() const OVERRIDE;
-  virtual Value Execute(Scope* scope, Err* err) const OVERRIDE;
-  virtual LocationRange GetRange() const OVERRIDE;
-  virtual Err MakeErrorDescribing(
-      const std::string& msg,
-      const std::string& help = std::string()) const OVERRIDE;
-  virtual void Print(std::ostream& out, int indent) const OVERRIDE;
-
-  const Token& value() const { return value_; }
-  void set_value(const Token& t) { value_ = t; }
-
- private:
-  Token value_;
-
-  DISALLOW_COPY_AND_ASSIGN(LiteralNode);
-};
-
-// UnaryOpNode -----------------------------------------------------------------
-
-class UnaryOpNode : public ParseNode {
- public:
-  UnaryOpNode();
-  virtual ~UnaryOpNode();
-
-  virtual const UnaryOpNode* AsUnaryOp() const OVERRIDE;
-  virtual Value Execute(Scope* scope, Err* err) const OVERRIDE;
-  virtual LocationRange GetRange() const OVERRIDE;
-  virtual Err MakeErrorDescribing(
-      const std::string& msg,
-      const std::string& help = std::string()) const OVERRIDE;
-  virtual void Print(std::ostream& out, int indent) const OVERRIDE;
-
-  const Token& op() const { return op_; }
-  void set_op(const Token& t) { op_ = t; }
-
-  const ParseNode* operand() const { return operand_.get(); }
-  void set_operand(scoped_ptr<ParseNode> operand) {
-    operand_ = operand.Pass();
-  }
-
- private:
-  Token op_;
-  scoped_ptr<ParseNode> operand_;
-
-  DISALLOW_COPY_AND_ASSIGN(UnaryOpNode);
-};
-
-#endif  // TOOLS_GN_PARSE_TREE_H_
diff --git a/tools/gn/parser.cc b/tools/gn/parser.cc
deleted file mode 100644
index 385aa346f611..000000000000
--- a/tools/gn/parser.cc
+++ /dev/null
@@ -1,470 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/parser.h"
-
-#include "base/logging.h"
-#include "tools/gn/functions.h"
-#include "tools/gn/operators.h"
-#include "tools/gn/token.h"
-
-namespace {
-
-// Returns true if the two tokens are on the same line. We assume they're in
-// the same file.
-bool IsSameLine(const Token& a, const Token& b) {
-  DCHECK(a.location().file() == b.location().file());
-  return a.location().line_number() == b.location().line_number();
-}
-
-}  // namespace
-
-Parser::Parser(const std::vector<Token>& tokens, Err* err)
-    : tokens_(tokens),
-      err_(err),
-      cur_(0) {
-}
-
-Parser::~Parser() {
-}
-
-// static
-scoped_ptr<ParseNode> Parser::Parse(const std::vector<Token>& tokens,
-                                    Err* err) {
-  Parser p(tokens, err);
-  return p.ParseBlock(false).PassAs<ParseNode>();
-}
-
-// static
-scoped_ptr<ParseNode> Parser::ParseExpression(const std::vector<Token>& tokens,
-                                              Err* err) {
-  Parser p(tokens, err);
-  return p.ParseExpression().Pass();
-}
-
-bool Parser::IsToken(Token::Type type, char* str) const {
-  if (at_end())
-    return false;
-  return cur_token().type() == type || cur_token().value() == str;
-}
-
-scoped_ptr<AccessorNode> Parser::ParseAccessor() {
-  scoped_ptr<AccessorNode> accessor(new AccessorNode);
-
-  DCHECK(cur_token().type() == Token::IDENTIFIER);
-  accessor->set_base(cur_token());
-  cur_++;  // Skip identifier.
-  cur_++;  // Skip "[" (we know this exists because the existance of this
-           // token is how the caller knows it's an accessor.
-
-  if (at_end()) {
-    *err_ = MakeEOFError("Got EOF when looking for list index.");
-    return scoped_ptr<AccessorNode>();
-  }
-
-  // Get the expression.
-  scoped_ptr<ParseNode> expr = ParseExpression().Pass();
-  if (has_error())
-    return scoped_ptr<AccessorNode>();
-  if (at_end()) {
-    *err_ = MakeEOFError("Got EOF when looking for list accessor ]");
-    return scoped_ptr<AccessorNode>();
-  }
-  accessor->set_index(expr.Pass());
-
-  // Skip over "]"
-  if (!cur_token().IsScoperEqualTo("]")) {
-    *err_ = Err(cur_token(), "Expecting ]",
-               "You started a list access but didn't terminate it, and instead "
-               "I fould this\nstupid thing.");
-    return scoped_ptr<AccessorNode>();
-  }
-  cur_++;
-
-  return accessor.Pass();
-}
-
-// Blocks at the file scope don't need {} so we have the option to ignore
-// them. When need_braces is set, we'll expect a begin an end brace.
-//
-// block := "{" block_contents "}"
-// block_contents := (expression | conditional | block)*
-scoped_ptr<BlockNode> Parser::ParseBlock(bool need_braces) {
-  scoped_ptr<BlockNode> block(new BlockNode(true));
-
-  // Eat initial { if necessary.
-  const Token* opening_curly_brace;
-  if (need_braces) {
-    if (at_end()) {
-      *err_ = MakeEOFError("Got EOF when looking for { for block.",
-                           "It should have been after here.");
-      return scoped_ptr<BlockNode>();
-    } else if(!IsScopeBeginScoper(cur_token())) {
-      *err_ = Err(cur_token(), "Expecting { instead of this thing.",
-                  "THOU SHALT USE CURLY BRACES FOR ALL BLOCKS.");
-      return scoped_ptr<BlockNode>();
-    }
-    opening_curly_brace = &cur_token();
-    block->set_begin_token(opening_curly_brace);
-    cur_++;
-  }
-
-  // Loop until EOF or end brace found.
-  while (!at_end() && !IsScopeEndScoper(cur_token())) {
-    if (cur_token().IsIdentifierEqualTo("if")) {
-      // Conditional.
-      block->append_statement(ParseCondition().PassAs<ParseNode>());
-    } else if (IsScopeBeginScoper(cur_token())) {
-      // Nested block.
-      block->append_statement(ParseBlock(true).PassAs<ParseNode>());
-    } else {
-      // Everything else is an expression.
-      block->append_statement(ParseExpression().PassAs<ParseNode>());
-    }
-    if (has_error())
-      return scoped_ptr<BlockNode>();
-  }
-
-  // Eat the ending "}" if necessary.
-  if (need_braces) {
-    if (at_end() || !IsScopeEndScoper(cur_token())) {
-      *err_ = Err(*opening_curly_brace, "Expecting }",
-                  "I ran headlong into the end of the file looking for the "
-                  "closing brace\ncorresponding to this one.");
-      return scoped_ptr<BlockNode>();
-    }
-    block->set_end_token(&cur_token());
-    cur_++;  // Skip past "}".
-  }
-
-  return block.Pass();
-}
-
-// conditional := "if (" expression ")" block [else_conditional]
-// else_conditional := ("else" block) | ("else" conditional)
-scoped_ptr<ConditionNode> Parser::ParseCondition() {
-  scoped_ptr<ConditionNode> cond(new ConditionNode);
-
-  // Skip past "if".
-  const Token& if_token = cur_token();
-  cond->set_if_token(if_token);
-  DCHECK(if_token.IsIdentifierEqualTo("if"));
-  cur_++;
-
-  if (at_end() || !IsFunctionCallArgBeginScoper(cur_token())) {
-    *err_ = Err(if_token, "Expecting \"(\" after \"if\"",
-                "Did you think this was Python or something?");
-    return scoped_ptr<ConditionNode>();
-  }
-
-  // Skip over (.
-  const Token& open_paren_token = cur_token();
-  cur_++;
-  if (at_end()) {
-    *err_ = Err(if_token, "Unexpected EOF inside if condition");
-    return scoped_ptr<ConditionNode>();
-  }
-
-  // Condition inside ().
-  cond->set_condition(ParseExpression().Pass());
-  if (has_error())
-    return scoped_ptr<ConditionNode>();
-
-  if (at_end() || !IsFunctionCallArgEndScoper(cur_token())) {
-    *err_ = Err(open_paren_token, "Expecting \")\" for \"if\" condition",
-                "You didn't finish the thought you started here.");
-    return scoped_ptr<ConditionNode>();
-  }
-  cur_++;  // Skip over )
-
-  // Contents of {}.
-  cond->set_if_true(ParseBlock(true).Pass());
-  if (has_error())
-    return scoped_ptr<ConditionNode>();
-
-  // Optional "else" at the end.
-  if (!at_end() && cur_token().IsIdentifierEqualTo("else")) {
-    cur_++;
-
-    // The else may be followed by an if or a block.
-    if (at_end()) {
-      *err_ = MakeEOFError("Ran into end of file after \"else\".",
-                           "else, WHAT?!?!?");
-      return scoped_ptr<ConditionNode>();
-    }
-    if (cur_token().IsIdentifierEqualTo("if")) {
-      // "else if() {"
-      cond->set_if_false(ParseCondition().PassAs<ParseNode>());
-    } else if (IsScopeBeginScoper(cur_token())) {
-      // "else {"
-      cond->set_if_false(ParseBlock(true).PassAs<ParseNode>());
-    } else {
-      // else <anything else>
-      *err_ = Err(cur_token(), "Expected \"if\" or \"{\" after \"else\".",
-                  "This is neither of those things.");
-      return scoped_ptr<ConditionNode>();
-    }
-  }
-
-  if (has_error())
-    return scoped_ptr<ConditionNode>();
-  return cond.Pass();
-}
-
-// expression := paren_expression | accessor | identifier | literal |
-//               funccall | unary_expression | binary_expression
-//
-// accessor := identifier <non-newline-whitespace>* "[" expression "]"
-//
-// The "non-newline-whitespace is used to differentiate between this case:
-//   a[1]
-// and this one:
-//   a
-//   [1]
-// The second one is kind of stupid (since it does nothing with the values)
-// but is still legal.
-scoped_ptr<ParseNode> Parser::ParseExpression() {
-  scoped_ptr<ParseNode> expr = ParseExpressionExceptBinaryOperators();
-  if (has_error())
-    return scoped_ptr<ParseNode>();
-
-  // That may have hit EOF, in which case we can't have any binary operators.
-  if (at_end())
-    return expr.Pass();
-
-  // TODO(brettw) handle operator precidence!
-  // Gobble up all subsequent expressions as long as there are binary
-  // operators.
-
-  if (IsBinaryOperator(cur_token())) {
-    scoped_ptr<BinaryOpNode> binary_op(new BinaryOpNode);
-    binary_op->set_left(expr.Pass());
-    const Token& operator_token = cur_token();
-    binary_op->set_op(operator_token);
-    cur_++;
-    if (at_end()) {
-      *err_ = Err(operator_token, "Unexpected EOF in expression.",
-                  "I was looking for the right-hand-side of this operator.");
-      return scoped_ptr<ParseNode>();
-    }
-    binary_op->set_right(ParseExpression().Pass());
-    if (has_error())
-      return scoped_ptr<ParseNode>();
-    return binary_op.PassAs<ParseNode>();
-  }
-
-  return expr.Pass();
-}
-
-
-// This internal one does not handle binary operators, since it requires
-// looking at the "next" thing. The regular ParseExpression above handles it.
-scoped_ptr<ParseNode> Parser::ParseExpressionExceptBinaryOperators() {
-  if (at_end())
-    return scoped_ptr<ParseNode>();
-
-  const Token& token = cur_token();
-
-  // Unary expression.
-  if (IsUnaryOperator(token))
-    return ParseUnaryOp().PassAs<ParseNode>();
-
-  // Parenthesized expressions.
-  if (token.IsScoperEqualTo("("))
-    return ParseParenExpression();
-
-  // Function calls.
-  if (token.type() == Token::IDENTIFIER) {
-    if (has_next_token() && IsFunctionCallArgBeginScoper(next_token()))
-      return ParseFunctionCall().PassAs<ParseNode>();
-  }
-
-  // Lists.
-  if (token.IsScoperEqualTo("[")) {
-    return ParseList(Token(Location(), Token::SCOPER, "["),
-                     Token(Location(), Token::SCOPER, "]")).PassAs<ParseNode>();
-  }
-
-  // Literals.
-  if (token.type() == Token::STRING || token.type() == Token::INTEGER) {
-    cur_++;
-    return scoped_ptr<ParseNode>(new LiteralNode(token));
-  }
-
-  // Accessors.
-  if (token.type() == Token::IDENTIFIER &&
-      has_next_token() && next_token().IsScoperEqualTo("[") &&
-      IsSameLine(token, next_token())) {
-    return ParseAccessor().PassAs<ParseNode>();
-  }
-
-  // Identifiers.
-  if (token.type() == Token::IDENTIFIER) {
-    cur_++;
-    return scoped_ptr<ParseNode>(new IdentifierNode(token));
-  }
-
-  // Handle errors.
-  if (token.type() == Token::SEPARATOR) {
-    *err_ = Err(token, "Unexpected comma.",
-                "You can't put a comma here, it must be in list separating "
-                "complete\nthoughts.");
-  } else if (IsScopeBeginScoper(token)) {
-    *err_ = Err(token, "Unexpected token.",
-                "You can't put a \"{\" scope here, it must be in a block.");
-  } else {
-    *err_ = Err(token, "Unexpected token.",
-                "I was really hoping for something else here and you let me down.");
-  }
-  return scoped_ptr<ParseNode>();
-}
-
-// function_call := identifier "(" list_contents ")"
-//                  [<non-newline-whitespace>* block]
-scoped_ptr<FunctionCallNode> Parser::ParseFunctionCall() {
-  scoped_ptr<FunctionCallNode> func(new FunctionCallNode);
-
-  const Token& function_token = cur_token();
-  func->set_function(function_token);
-
-  // This function should only get called when we know we have a function,
-  // which only happens when there is a paren following the name. Skip past it.
-  DCHECK(has_next_token());
-  cur_++;  // Skip past function name to (.
-  const Token& open_paren_token = cur_token();
-  DCHECK(IsFunctionCallArgBeginScoper(open_paren_token));
-
-  if (at_end()) {
-    *err_ = Err(open_paren_token, "Unexpected EOF for function call.",
-                "You didn't finish the thought you started here.");
-    return scoped_ptr<FunctionCallNode>();
-  }
-
-  // Arguments.
-  func->set_args(ParseList(Token(Location(), Token::SCOPER, "("),
-                           Token(Location(), Token::SCOPER, ")")));
-  if (has_error())
-    return scoped_ptr<FunctionCallNode>();
-
-  // Optional {} after function call for certain functions. The "{" must be on
-  // the same line as the ")" to disambiguate the case of a function followed
-  // by a random block just used for scoping purposes.
-  if (!at_end() && IsScopeBeginScoper(cur_token())) {
-    const Token& args_end_token = tokens_[cur_ - 1];
-    DCHECK(args_end_token.IsScoperEqualTo(")"));
-    if (IsSameLine(args_end_token, cur_token()))
-      func->set_block(ParseBlock(true).Pass());
-  }
-
-  if (has_error())
-    return scoped_ptr<FunctionCallNode>();
-  return func.Pass();
-}
-
-// list := "[" expression* "]"
-// list_contents := [(expression ",")* expression [","]]
-//
-// The list_contents is also used in function calls surrounded by parens, so
-// this function takes the tokens that are expected to surround the list.
-scoped_ptr<ListNode> Parser::ParseList(const Token& expected_begin,
-                                       const Token& expected_end) {
-  scoped_ptr<ListNode> list(new ListNode);
-
-  const Token& open_bracket_token = cur_token();
-  list->set_begin_token(open_bracket_token);
-  cur_++;  // Skip "[" or "(".
-
-  bool need_separator = false;
-  while(true) {
-    if (at_end()) {
-      *err_ = Err(open_bracket_token, "EOF found when parsing list.",
-                  "I expected a \"" + expected_end.value().as_string() +
-                  "\" corresponding to this one.");
-      return scoped_ptr<ListNode>();
-    }
-    if (cur_token().type() == expected_end.type() &&
-        cur_token().value() == expected_end.value()) {
-      list->set_end_token(cur_token());
-      cur_++;
-      break;
-    }
-
-    if (need_separator) {
-      DCHECK(!list->contents().empty());
-      LocationRange prev_item_range =
-          list->contents().at(list->contents().size() - 1)->GetRange();
-      *err_ = Err(prev_item_range.end(),
-                  "Need comma separating items in list.",
-                  "You probably need a comma after this thingy.");
-      err_->AppendRange(prev_item_range);
-      return scoped_ptr<ListNode>();
-    }
-    scoped_ptr<ParseNode> expr = ParseExpression().Pass();
-    if (has_error())
-      return scoped_ptr<ListNode>();
-    list->append_item(expr.Pass());
-
-    need_separator = true;
-    if (!at_end()) {
-      // Skip over the separator, marking that we found it.
-      if (cur_token().type() == Token::SEPARATOR) {
-        cur_++;
-        need_separator = false;
-      }
-    }
-  }
-  return list.Pass();
-}
-
-// paren_expression := "(" expression ")"
-scoped_ptr<ParseNode> Parser::ParseParenExpression() {
-  const Token& open_paren_token = cur_token();
-  cur_++;  // Skip over (
-
-  scoped_ptr<ParseNode> ret = ParseExpression();
-  if (has_error())
-    return scoped_ptr<ParseNode>();
-
-  if (at_end()) {
-    *err_ = Err(open_paren_token, "EOF found when parsing expression.",
-                "I was looking for a \")\" corresponding to this one.");
-    return scoped_ptr<ParseNode>();
-  }
-  if (!cur_token().IsScoperEqualTo(")")) {
-    *err_ = Err(open_paren_token, "Expected \")\" for expression",
-                "I was looking for a \")\" corresponding to this one.");
-    return scoped_ptr<ParseNode>();
-  }
-  cur_++;  // Skip over )
-  return ret.Pass();
-}
-
-// unary_expression := "!" expression
-scoped_ptr<UnaryOpNode> Parser::ParseUnaryOp() {
-  scoped_ptr<UnaryOpNode> unary(new UnaryOpNode);
-
-  DCHECK(!at_end() && IsUnaryOperator(cur_token()));
-  const Token& op_token = cur_token();
-  unary->set_op(op_token);
-  cur_++;
-
-  if (at_end()) {
-    *err_ = Err(op_token, "Expected expression.",
-                "This operator needs something to operate on.");
-    return scoped_ptr<UnaryOpNode>();
-  }
-  unary->set_operand(ParseExpression().Pass());
-  if (has_error())
-    return scoped_ptr<UnaryOpNode>();
-  return unary.Pass();
-}
-
-Err Parser::MakeEOFError(const std::string& message,
-                         const std::string& help) const {
-  if (tokens_.empty())
-    return Err(Location(NULL, 1, 1), message, help);
-
-  const Token& last = tokens_[tokens_.size() - 1];
-  return Err(last, message, help);
-}
diff --git a/tools/gn/parser.h b/tools/gn/parser.h
deleted file mode 100644
index 252b801a682f..000000000000
--- a/tools/gn/parser.h
+++ /dev/null
@@ -1,81 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_PARSER_H_
-#define TOOLS_GN_PARSER_H_
-
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/gtest_prod_util.h"
-#include "base/memory/scoped_ptr.h"
-#include "tools/gn/err.h"
-#include "tools/gn/parse_tree.h"
-
-// Parses a series of tokens. The resulting AST will refer to the tokens passed
-// to the input, so the tokens an the file data they refer to must outlive your
-// use of the ParseNode.
-class Parser {
- public:
-  // Will return a null pointer and set the err on error.
-  static scoped_ptr<ParseNode> Parse(const std::vector<Token>& tokens,
-                                     Err* err);
-
-  // Alternative to parsing that assumes the input is an expression.
-  static scoped_ptr<ParseNode> ParseExpression(const std::vector<Token>& tokens,
-                                               Err* err);
-
- private:
-  // Vector must be valid for lifetime of call.
-  Parser(const std::vector<Token>& tokens, Err* err);
-  ~Parser();
-
-  scoped_ptr<AccessorNode> ParseAccessor();
-  scoped_ptr<BlockNode> ParseBlock(bool need_braces);
-  scoped_ptr<ConditionNode> ParseCondition();
-  scoped_ptr<ParseNode> ParseExpression();
-  scoped_ptr<ParseNode> ParseExpressionExceptBinaryOperators();
-  scoped_ptr<FunctionCallNode> ParseFunctionCall();
-  scoped_ptr<ListNode> ParseList(const Token& expected_begin,
-                                 const Token& expected_end);
-  scoped_ptr<ParseNode> ParseParenExpression();
-  scoped_ptr<UnaryOpNode> ParseUnaryOp();
-
-  bool IsToken(Token::Type type, char* str) const;
-
-  // Gets an error corresponding to the last token. When we hit an EOF
-  // usually we've already gone beyond the end (or maybe there are no tokens)
-  // so there is some tricky logic to report this.
-  Err MakeEOFError(const std::string& message,
-                   const std::string& help = std::string()) const;
-
-  const Token& cur_token() const { return tokens_[cur_]; }
-
-  bool done() const { return at_end() || has_error(); }
-  bool at_end() const { return cur_ >= tokens_.size(); }
-  bool has_error() const { return err_->has_error(); }
-
-  const Token& next_token() const { return tokens_[cur_ + 1]; }
-  bool has_next_token() const { return cur_ + 1 < tokens_.size(); }
-
-  const std::vector<Token>& tokens_;
-
-  Err* err_;
-
-  // Current index into the tokens.
-  size_t cur_;
-
-  FRIEND_TEST_ALL_PREFIXES(Parser, BinaryOp);
-  FRIEND_TEST_ALL_PREFIXES(Parser, Block);
-  FRIEND_TEST_ALL_PREFIXES(Parser, Condition);
-  FRIEND_TEST_ALL_PREFIXES(Parser, Expression);
-  FRIEND_TEST_ALL_PREFIXES(Parser, FunctionCall);
-  FRIEND_TEST_ALL_PREFIXES(Parser, List);
-  FRIEND_TEST_ALL_PREFIXES(Parser, ParenExpression);
-  FRIEND_TEST_ALL_PREFIXES(Parser, UnaryOp);
-
-  DISALLOW_COPY_AND_ASSIGN(Parser);
-};
-
-#endif  // TOOLS_GN_PARSER_H_
diff --git a/tools/gn/parser_unittest.cc b/tools/gn/parser_unittest.cc
deleted file mode 100644
index 3fd8ebe28db8..000000000000
--- a/tools/gn/parser_unittest.cc
+++ /dev/null
@@ -1,329 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include <iostream>
-#include <sstream>
-
-#include "testing/gtest/include/gtest/gtest.h"
-#include "tools/gn/input_file.h"
-#include "tools/gn/parser.h"
-#include "tools/gn/tokenizer.h"
-
-namespace {
-
-bool GetTokens(const InputFile* input, std::vector<Token>* result) {
-  result->clear();
-  Err err;
-  *result = Tokenizer::Tokenize(input, &err);
-  return !err.has_error();
-}
-
-bool IsIdentifierEqual(const ParseNode* node, const char* val) {
-  if (!node)
-    return false;
-  const IdentifierNode* ident = node->AsIdentifier();
-  if (!ident)
-    return false;
-  return ident->value().value() == val;
-}
-
-bool IsLiteralEqual(const ParseNode* node, const char* val) {
-  if (!node)
-    return false;
-  const LiteralNode* lit = node->AsLiteral();
-  if (!lit)
-    return false;
-  return lit->value().value() == val;
-}
-
-// Returns true if the given node as a simple assignment to a given value.
-bool IsAssignment(const ParseNode* node, const char* ident, const char* value) {
-  if (!node)
-    return false;
-  const BinaryOpNode* binary = node->AsBinaryOp();
-  if (!binary)
-    return false;
-  return binary->op().IsOperatorEqualTo("=") &&
-         IsIdentifierEqual(binary->left(), ident) &&
-         IsLiteralEqual(binary->right(), value);
-}
-
-// Returns true if the given node is a block with one assignment statement.
-bool IsBlockWithAssignment(const ParseNode* node,
-                           const char* ident, const char* value) {
-  if (!node)
-    return false;
-  const BlockNode* block = node->AsBlock();
-  if (!block)
-    return false;
-  if (block->statements().size() != 1)
-    return false;
-  return IsAssignment(block->statements()[0], ident, value);
-}
-
-void DoParserPrintTest(const char* input, const char* expected) {
-  std::vector<Token> tokens;
-  InputFile input_file(SourceFile("/test"));
-  input_file.SetContents(input);
-  ASSERT_TRUE(GetTokens(&input_file, &tokens));
-
-  Err err;
-  scoped_ptr<ParseNode> result = Parser::Parse(tokens, &err);
-  ASSERT_TRUE(result);
-
-  std::ostringstream collector;
-  result->Print(collector, 0);
-
-  EXPECT_EQ(expected, collector.str());
-}
-
-// Expects the tokenizer or parser to identify an error at the given line and
-// character.
-void DoParserErrorTest(const char* input, int err_line, int err_char) {
-  InputFile input_file(SourceFile("/test"));
-  input_file.SetContents(input);
-
-  Err err;
-  std::vector<Token> tokens = Tokenizer::Tokenize(&input_file, &err);
-  if (!err.has_error()) {
-    scoped_ptr<ParseNode> result = Parser::Parse(tokens, &err);
-    ASSERT_FALSE(result);
-    ASSERT_TRUE(err.has_error());
-  }
-
-  EXPECT_EQ(err_line, err.location().line_number());
-  EXPECT_EQ(err_char, err.location().char_offset());
-}
-
-}  // namespace
-
-TEST(Parser, BinaryOp) {
-  std::vector<Token> tokens;
-
-  // Simple set expression.
-  InputFile expr_input(SourceFile("/test"));
-  expr_input.SetContents("a=2");
-  ASSERT_TRUE(GetTokens(&expr_input, &tokens));
-  Err err;
-  Parser set(tokens, &err);
-  scoped_ptr<ParseNode> expr = set.ParseExpression();
-  ASSERT_TRUE(expr);
-
-  const BinaryOpNode* binary_op = expr->AsBinaryOp();
-  ASSERT_TRUE(binary_op);
-
-  EXPECT_TRUE(binary_op->left()->AsIdentifier());
-
-  EXPECT_TRUE(binary_op->op().type() == Token::OPERATOR);
-  EXPECT_TRUE(binary_op->op().value() == "=");
-
-  EXPECT_TRUE(binary_op->right()->AsLiteral());
-}
-
-TEST(Parser, Condition) {
-  std::vector<Token> tokens;
-
-  InputFile cond_input(SourceFile("/test"));
-  cond_input.SetContents("if(1) { a = 2 }");
-  ASSERT_TRUE(GetTokens(&cond_input, &tokens));
-  Err err;
-  Parser simple_if(tokens, &err);
-  scoped_ptr<ConditionNode> cond = simple_if.ParseCondition();
-  ASSERT_TRUE(cond);
-
-  EXPECT_TRUE(IsLiteralEqual(cond->condition(), "1"));
-  EXPECT_FALSE(cond->if_false());  // No else block.
-  EXPECT_TRUE(IsBlockWithAssignment(cond->if_true(), "a", "2"));
-
-  // Now try a complicated if/else if/else one.
-  InputFile complex_if_input(SourceFile("/test"));
-  complex_if_input.SetContents(
-      "if(1) { a = 2 } else if (0) { a = 3 } else { a = 4 }");
-  ASSERT_TRUE(GetTokens(&complex_if_input, &tokens));
-  Parser complex_if(tokens, &err);
-  cond = complex_if.ParseCondition();
-  ASSERT_TRUE(cond);
-
-  EXPECT_TRUE(IsLiteralEqual(cond->condition(), "1"));
-  EXPECT_TRUE(IsBlockWithAssignment(cond->if_true(), "a", "2"));
-
-  ASSERT_TRUE(cond->if_false());
-  const ConditionNode* nested_cond = cond->if_false()->AsConditionNode();
-  ASSERT_TRUE(nested_cond);
-  EXPECT_TRUE(IsLiteralEqual(nested_cond->condition(), "0"));
-  EXPECT_TRUE(IsBlockWithAssignment(nested_cond->if_true(), "a", "3"));
-  EXPECT_TRUE(IsBlockWithAssignment(nested_cond->if_false(), "a", "4"));
-}
-
-TEST(Parser, FunctionCall) {
-  const char* input = "foo(a, 1, 2,) bar()";
-  const char* expected =
-      "BLOCK\n"
-      " FUNCTION(foo)\n"
-      "  LIST\n"
-      "   IDENTIFIER(a)\n"
-      "   LITERAL(1)\n"
-      "   LITERAL(2)\n"
-      " FUNCTION(bar)\n"
-      "  LIST\n";
-  DoParserPrintTest(input, expected);
-}
-
-TEST(Parser, ParenExpression) {
-  const char* input = "(foo(1)) + (a + b)";
-  const char* expected =
-      "BLOCK\n"
-      " BINARY(+)\n"
-      "  FUNCTION(foo)\n"
-      "   LIST\n"
-      "    LITERAL(1)\n"
-      "  BINARY(+)\n"
-      "   IDENTIFIER(a)\n"
-      "   IDENTIFIER(b)\n";
-  DoParserPrintTest(input, expected);
-  DoParserErrorTest("(a +", 1, 4);
-}
-
-TEST(Parser, UnaryOp) {
-  std::vector<Token> tokens;
-
-  InputFile ident_input(SourceFile("/test"));
-  ident_input.SetContents("!foo");
-  ASSERT_TRUE(GetTokens(&ident_input, &tokens));
-  Err err;
-  Parser ident(tokens, &err);
-  scoped_ptr<UnaryOpNode> op = ident.ParseUnaryOp();
-
-  ASSERT_TRUE(op);
-  EXPECT_TRUE(op->op().type() == Token::OPERATOR);
-  EXPECT_TRUE(op->op().value() == "!");
-}
-
-TEST(Parser, CompleteFunction) {
-  const char* input =
-      "cc_test(\"foo\") {\n"
-      "  sources = [\n"
-      "    \"foo.cc\",\n"
-      "    \"foo.h\"\n"
-      "  ]\n"
-      "  dependencies = [\n"
-      "    \"base\"\n"
-      "  ]\n"
-      "}\n";
-  const char* expected =
-      "BLOCK\n"
-      " FUNCTION(cc_test)\n"
-      "  LIST\n"
-      "   LITERAL(\"foo\")\n"
-      "  BLOCK\n"
-      "   BINARY(=)\n"
-      "    IDENTIFIER(sources)\n"
-      "    LIST\n"
-      "     LITERAL(\"foo.cc\")\n"
-      "     LITERAL(\"foo.h\")\n"
-      "   BINARY(=)\n"
-      "    IDENTIFIER(dependencies)\n"
-      "    LIST\n"
-      "     LITERAL(\"base\")\n";
-  DoParserPrintTest(input, expected);
-}
-
-TEST(Parser, FunctionWithConditional) {
-  const char* input =
-      "cc_test(\"foo\") {\n"
-      "  sources = [\"foo.cc\"]\n"
-      "  if (OS == \"mac\") {\n"
-      "    sources += \"bar.cc\"\n"
-      "  } else if (OS == \"win\") {\n"
-      "    sources -= [\"asd.cc\", \"foo.cc\"]\n"
-      "  } else {\n"
-      "    dependencies += [\"bar.cc\"]\n"
-      "  }\n"
-      "}\n";
-  const char* expected =
-      "BLOCK\n"
-      " FUNCTION(cc_test)\n"
-      "  LIST\n"
-      "   LITERAL(\"foo\")\n"
-      "  BLOCK\n"
-      "   BINARY(=)\n"
-      "    IDENTIFIER(sources)\n"
-      "    LIST\n"
-      "     LITERAL(\"foo.cc\")\n"
-      "   CONDITION\n"
-      "    BINARY(==)\n"
-      "     IDENTIFIER(OS)\n"
-      "     LITERAL(\"mac\")\n"
-      "    BLOCK\n"
-      "     BINARY(+=)\n"
-      "      IDENTIFIER(sources)\n"
-      "      LITERAL(\"bar.cc\")\n"
-      "    CONDITION\n"
-      "     BINARY(==)\n"
-      "      IDENTIFIER(OS)\n"
-      "      LITERAL(\"win\")\n"
-      "     BLOCK\n"
-      "      BINARY(-=)\n"
-      "       IDENTIFIER(sources)\n"
-      "       LIST\n"
-      "        LITERAL(\"asd.cc\")\n"
-      "        LITERAL(\"foo.cc\")\n"
-      "     BLOCK\n"
-      "      BINARY(+=)\n"
-      "       IDENTIFIER(dependencies)\n"
-      "       LIST\n"
-      "        LITERAL(\"bar.cc\")\n";
-  DoParserPrintTest(input, expected);
-}
-
-TEST(Parser, NestedBlocks) {
-  const char* input = "{cc_test(\"foo\") {{foo=1}{}}}";
-  const char* expected =
-      "BLOCK\n"
-      " BLOCK\n"
-      "  FUNCTION(cc_test)\n"
-      "   LIST\n"
-      "    LITERAL(\"foo\")\n"
-      "   BLOCK\n"
-      "    BLOCK\n"
-      "     BINARY(=)\n"
-      "      IDENTIFIER(foo)\n"
-      "      LITERAL(1)\n"
-      "    BLOCK\n";
-  DoParserPrintTest(input, expected);
-}
-
-TEST(Parser, List) {
-  const char* input = "[] a = [1,asd,] b = [1, 2+3 - foo]";
-  const char* expected =
-      "BLOCK\n"
-      " LIST\n"
-      " BINARY(=)\n"
-      "  IDENTIFIER(a)\n"
-      "  LIST\n"
-      "   LITERAL(1)\n"
-      "   IDENTIFIER(asd)\n"
-      " BINARY(=)\n"
-      "  IDENTIFIER(b)\n"
-      "  LIST\n"
-      "   LITERAL(1)\n"
-      "   BINARY(+)\n"
-      "    LITERAL(2)\n"
-      "    BINARY(-)\n"
-      "     LITERAL(3)\n"
-      "     IDENTIFIER(foo)\n";
-  DoParserPrintTest(input, expected);
-
-  DoParserErrorTest("[a, 2+,]", 1, 7);
-  DoParserErrorTest("[,]", 1, 2);
-  DoParserErrorTest("[a,,]", 1, 4);
-}
-
-TEST(Parser, UnterminatedBlock) {
-  DoParserErrorTest("hello {", 1, 7);
-}
-
-TEST(Parser, BadlyTerminatedNumber) {
-  DoParserErrorTest("1234z", 1, 5);
-}
diff --git a/tools/gn/path_output.cc b/tools/gn/path_output.cc
deleted file mode 100644
index f67b3d4d64c5..000000000000
--- a/tools/gn/path_output.cc
+++ /dev/null
@@ -1,116 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/path_output.h"
-
-#include "build/build_config.h"
-#include "tools/gn/filesystem_utils.h"
-#include "tools/gn/output_file.h"
-#include "tools/gn/string_utils.h"
-
-PathOutput::PathOutput(const SourceDir& current_dir,
-                       EscapingMode escaping,
-                       bool convert_slashes)
-    : current_dir_(current_dir) {
-  inverse_current_dir_ = InvertDir(current_dir_);
-
-  options_.mode = escaping;
-  options_.convert_slashes = convert_slashes;
-  options_.inhibit_quoting = false;
-
-  if (convert_slashes)
-    ConvertPathToSystem(&inverse_current_dir_);
-}
-
-PathOutput::~PathOutput() {
-}
-
-void PathOutput::WriteFile(std::ostream& out, const SourceFile& file) const {
-  WritePathStr(out, file.value());
-}
-
-void PathOutput::WriteDir(std::ostream& out,
-                          const SourceDir& dir,
-                          DirSlashEnding slash_ending) const {
-  if (dir.value() == "/") {
-    // Writing system root is always a slash (this will normally only come up
-    // on Posix systems).
-    out << "/";
-  } else if (dir.value() == "//") {
-    // Writing out the source root.
-    if (slash_ending == DIR_NO_LAST_SLASH) {
-      // The inverse_current_dir_ will contain a [back]slash at the end, so we
-      // can't just write it out.
-      if (inverse_current_dir_.empty()) {
-        out << ".";
-      } else {
-        out.write(inverse_current_dir_.c_str(),
-                  inverse_current_dir_.size() - 1);
-      }
-    } else {
-      if (inverse_current_dir_.empty())
-        out << "./";
-      else
-        out << inverse_current_dir_;
-    }
-  } else if (slash_ending == DIR_INCLUDE_LAST_SLASH) {
-    WritePathStr(out, dir.value());
-  } else {
-    // DIR_NO_LAST_SLASH mode, just trim the last char.
-    WritePathStr(out, base::StringPiece(dir.value().data(),
-                                        dir.value().size() - 1));
-  }
-}
-
-void PathOutput::WriteFile(std::ostream& out, const OutputFile& file) const {
-  // Here we assume that the path is already preprocessed.
-  EscapeStringToStream(out, file.value(), options_);
-}
-
-void PathOutput::WriteSourceRelativeString(
-    std::ostream& out,
-    const base::StringPiece& str) const {
-  // Input begins with two slashes, is relative to source root. Strip off
-  // the two slashes when cat-ing it.
-  if (options_.mode == ESCAPE_SHELL) {
-    // Shell escaping needs an intermediate string since it may end up
-    // quoting the whole thing. On Windows, the slashes may already be
-    // converted to backslashes in inverse_current_dir_, but we assume that on
-    // Windows the escaper won't try to then escape the preconverted
-    // backslashes and will just pass them, so this is fine.
-    std::string intermediate;
-    intermediate.reserve(inverse_current_dir_.size() + str.size());
-    intermediate.assign(inverse_current_dir_.c_str(),
-                        inverse_current_dir_.size());
-    intermediate.append(str.data(), str.size());
-
-    EscapeStringToStream(out,
-        base::StringPiece(intermediate.c_str(), intermediate.size()),
-        options_);
-  } else {
-    // Ninja (and none) escaping can avoid the intermediate string and
-    // reprocessing of the inverse_current_dir_.
-    out << inverse_current_dir_;
-    EscapeStringToStream(out, str, options_);
-  }
-}
-
-void PathOutput::WritePathStr(std::ostream& out,
-                              const base::StringPiece& str) const {
-  DCHECK(str.size() > 0 && str[0] == '/');
-
-  if (str.size() >= 2 && str[1] == '/') {
-    WriteSourceRelativeString(out, str.substr(2));
-  } else {
-    // Input begins with one slash, don't write the current directory since
-    // it's system-absolute.
-#if defined(OS_WIN)
-    // On Windows, trim the leading slash, since the input for absolute
-    // paths will look like "/C:/foo/bar.txt".
-    EscapeStringToStream(out, str.substr(1), options_);
-#else
-    EscapeStringToStream(out, str, options_);
-#endif
-  }
-}
diff --git a/tools/gn/path_output.h b/tools/gn/path_output.h
deleted file mode 100644
index 00bdbeece6e8..000000000000
--- a/tools/gn/path_output.h
+++ /dev/null
@@ -1,80 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_PATH_OUTPUT_H_
-#define TOOLS_GN_PATH_OUTPUT_H_
-
-#include <iosfwd>
-#include <string>
-
-#include "base/basictypes.h"
-#include "base/strings/string_piece.h"
-#include "tools/gn/escape.h"
-#include "tools/gn/source_dir.h"
-
-class OutputFile;
-class SourceFile;
-
-// Writes file names to streams assuming a certain input directory and
-// escaping rules. This gives us a central place for managing this state.
-class PathOutput {
- public:
-  // Controls whether writing directory names include the trailing slash.
-  // Often we don't want the trailing slash when writing out to a command line,
-  // especially on Windows where it's a backslash and might be interpreted as
-  // escaping the thing following it.
-  enum DirSlashEnding {
-    DIR_INCLUDE_LAST_SLASH,
-    DIR_NO_LAST_SLASH,
-  };
-
-  PathOutput(const SourceDir& current_dir,
-             EscapingMode escaping,
-             bool convert_slashes);
-  ~PathOutput();
-
-  // Read-only since inverse_current_dir_ is computed depending on this.
-  EscapingMode escaping_mode() const { return options_.mode; }
-
-  // When true, converts slashes to the system-type path separators (on
-  // Windows, this is a backslash, this is a NOP otherwise).
-  //
-  // Read-only since inverse_current_dir_ is computed depending on this.
-  bool convert_slashes_to_system() const { return options_.convert_slashes; }
-
-  // When the output escaping is ESCAPE_SHELL, the escaper will normally put
-  // quotes around suspect things. If this value is set to true, we'll disable
-  // the quoting feature. This means that in ESCAPE_SHELL mode, strings with
-  // spaces in them qon't be quoted. This mode is for when quoting is done at
-  // some higher-level. Defaults to false.
-  bool inhibit_quoting() const { return options_.inhibit_quoting; }
-  void set_inhibit_quoting(bool iq) { options_.inhibit_quoting = iq; }
-
-  void WriteFile(std::ostream& out, const SourceFile& file) const;
-  void WriteFile(std::ostream& out, const OutputFile& file) const;
-  void WriteDir(std::ostream& out,
-                const SourceDir& dir,
-                DirSlashEnding slash_ending) const;
-
-  // Backend for WriteFile and WriteDir. This appends the given file or
-  // directory string to the file.
-  void WritePathStr(std::ostream& out, const base::StringPiece& str) const;
-
- private:
-  // Takes the given string and writes it out, appending to the inverse
-  // current dir. This assumes leading slashes have been trimmed.
-  void WriteSourceRelativeString(std::ostream& out,
-                                 const base::StringPiece& str) const;
-
-  SourceDir current_dir_;
-
-  // Uses system slashes if convert_slashes_to_system_.
-  std::string inverse_current_dir_;
-
-  // Since the inverse_current_dir_ depends on some of these, we don't expose
-  // this directly to modification.
-  EscapeOptions options_;
-};
-
-#endif  // TOOLS_GN_PATH_OUTPUT_H_
diff --git a/tools/gn/path_output_unittest.cc b/tools/gn/path_output_unittest.cc
deleted file mode 100644
index 5133b793facf..000000000000
--- a/tools/gn/path_output_unittest.cc
+++ /dev/null
@@ -1,193 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include <sstream>
-
-#include "testing/gtest/include/gtest/gtest.h"
-#include "tools/gn/path_output.h"
-#include "tools/gn/source_dir.h"
-#include "tools/gn/source_file.h"
-
-TEST(PathOutput, Basic) {
-  SourceDir build_dir("//out/Debug/");
-  PathOutput writer(build_dir, ESCAPE_NONE, false);
-  {
-    // Normal source-root path.
-    std::ostringstream out;
-    writer.WriteFile(out, SourceFile("//foo/bar.cc"));
-    EXPECT_EQ("../../foo/bar.cc", out.str());
-  }
-  {
-    // File in the root dir.
-    std::ostringstream out;
-    writer.WriteFile(out, SourceFile("//foo.cc"));
-    EXPECT_EQ("../../foo.cc", out.str());
-  }
-#if defined(OS_WIN)
-  {
-    // System-absolute path.
-    std::ostringstream out;
-    writer.WriteFile(out, SourceFile("/C:/foo/bar.cc"));
-    EXPECT_EQ("C:/foo/bar.cc", out.str());
-  }
-#else
-  {
-    // System-absolute path.
-    std::ostringstream out;
-    writer.WriteFile(out, SourceFile("/foo/bar.cc"));
-    EXPECT_EQ("/foo/bar.cc", out.str());
-  }
-#endif
-}
-
-// Same as basic but the output dir is the root.
-TEST(PathOutput, BasicInRoot) {
-  SourceDir build_dir("//");
-  PathOutput writer(build_dir, ESCAPE_NONE, false);
-  {
-    // Normal source-root path.
-    std::ostringstream out;
-    writer.WriteFile(out, SourceFile("//foo/bar.cc"));
-    EXPECT_EQ("foo/bar.cc", out.str());
-  }
-  {
-    // File in the root dir.
-    std::ostringstream out;
-    writer.WriteFile(out, SourceFile("//foo.cc"));
-    EXPECT_EQ("foo.cc", out.str());
-  }
-}
-
-TEST(PathOutput, NinjaEscaping) {
-  SourceDir build_dir("//out/Debug/");
-  PathOutput writer(build_dir, ESCAPE_NINJA, false);
-  {
-    // Spaces and $ in filenames.
-    std::ostringstream out;
-    writer.WriteFile(out, SourceFile("//foo/foo bar$.cc"));
-    EXPECT_EQ("../../foo/foo$ bar$$.cc", out.str());
-  }
-  {
-    // Not other weird stuff
-    std::ostringstream out;
-    writer.WriteFile(out, SourceFile("//foo/\"foo\\bar\".cc"));
-    EXPECT_EQ("../../foo/\"foo\\bar\".cc", out.str());
-  }
-}
-
-TEST(PathOutput, ShellEscaping) {
-  SourceDir build_dir("//out/Debug/");
-  PathOutput writer(build_dir, ESCAPE_SHELL, false);
-  {
-    // Spaces in filenames should get quoted.
-    std::ostringstream out;
-    writer.WriteFile(out, SourceFile("//foo/foo bar.cc"));
-    EXPECT_EQ("\"../../foo/foo bar.cc\"", out.str());
-  }
-  {
-    // Quotes should get blackslash-escaped.
-    std::ostringstream out;
-    writer.WriteFile(out, SourceFile("//foo/\"foobar\".cc"));
-    EXPECT_EQ("../../foo/\\\"foobar\\\".cc", out.str());
-  }
-  {
-    // Backslashes should get escaped on non-Windows and preserved on Windows.
-    std::ostringstream out;
-    writer.WriteFile(out, SourceFile("//foo\\bar.cc"));
-#if defined(OS_WIN)
-    EXPECT_EQ("../../foo\\bar.cc", out.str());
-#else
-    EXPECT_EQ("../../foo\\\\bar.cc", out.str());
-#endif
-  }
-}
-
-TEST(PathOutput, SlashConversion) {
-  SourceDir build_dir("//out/Debug/");
-  PathOutput writer(build_dir, ESCAPE_NINJA, true);
-  {
-    std::ostringstream out;
-    writer.WriteFile(out, SourceFile("//foo/bar.cc"));
-#if defined(OS_WIN)
-    EXPECT_EQ("..\\..\\foo\\bar.cc", out.str());
-#else
-    EXPECT_EQ("../../foo/bar.cc", out.str());
-#endif
-  }
-}
-
-TEST(PathOutput, InhibitQuoting) {
-  SourceDir build_dir("//out/Debug/");
-  PathOutput writer(build_dir, ESCAPE_SHELL, false);
-  writer.set_inhibit_quoting(true);
-  {
-    // We should get unescaped spaces in the output with no quotes.
-    std::ostringstream out;
-    writer.WriteFile(out, SourceFile("//foo/foo bar.cc"));
-    EXPECT_EQ("../../foo/foo bar.cc", out.str());
-  }
-}
-
-TEST(PathOutput, WriteDir) {
-  {
-    SourceDir build_dir("//out/Debug/");
-    PathOutput writer(build_dir, ESCAPE_NINJA, false);
-    {
-      std::ostringstream out;
-      writer.WriteDir(out, SourceDir("//foo/bar/"),
-                      PathOutput::DIR_INCLUDE_LAST_SLASH);
-      EXPECT_EQ("../../foo/bar/", out.str());
-    }
-    {
-      std::ostringstream out;
-      writer.WriteDir(out, SourceDir("//foo/bar/"),
-                      PathOutput::DIR_NO_LAST_SLASH);
-      EXPECT_EQ("../../foo/bar", out.str());
-    }
-
-    // Output source root dir.
-    {
-      std::ostringstream out;
-      writer.WriteDir(out, SourceDir("//"),
-                      PathOutput::DIR_INCLUDE_LAST_SLASH);
-      EXPECT_EQ("../../", out.str());
-    }
-    {
-      std::ostringstream out;
-      writer.WriteDir(out, SourceDir("//"),
-                      PathOutput::DIR_NO_LAST_SLASH);
-      EXPECT_EQ("../..", out.str());
-    }
-
-    // Output system root dir.
-    {
-      std::ostringstream out;
-      writer.WriteDir(out, SourceDir("/"),
-                      PathOutput::DIR_INCLUDE_LAST_SLASH);
-      EXPECT_EQ("/", out.str());
-    }
-    {
-      std::ostringstream out;
-      writer.WriteDir(out, SourceDir("/"),
-                      PathOutput::DIR_NO_LAST_SLASH);
-      EXPECT_EQ("/", out.str());
-    }
-  }
-  {
-    // Empty build dir writer.
-    PathOutput root_writer(SourceDir("//"), ESCAPE_NINJA, false);
-    {
-      std::ostringstream out;
-      root_writer.WriteDir(out, SourceDir("//"),
-                           PathOutput::DIR_INCLUDE_LAST_SLASH);
-      EXPECT_EQ("./", out.str());
-    }
-    {
-      std::ostringstream out;
-      root_writer.WriteDir(out, SourceDir("//"),
-                           PathOutput::DIR_NO_LAST_SLASH);
-      EXPECT_EQ(".", out.str());
-    }
-  }
-}
diff --git a/tools/gn/pattern.cc b/tools/gn/pattern.cc
deleted file mode 100644
index cc08b2ce5678..000000000000
--- a/tools/gn/pattern.cc
+++ /dev/null
@@ -1,185 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/pattern.h"
-
-#include "tools/gn/value.h"
-
-namespace {
-
-void ParsePattern(const std::string& s, std::vector<Pattern::Subrange>* out) {
-  // Set when the last subrange is a literal so we can just append when we
-  // find another literal.
-  Pattern::Subrange* last_literal = NULL;
-
-  for (size_t i = 0; i < s.size(); i++) {
-    if (s[i] == '*') {
-      // Don't allow two **.
-      if (out->size() == 0 ||
-          (*out)[out->size() - 1].type != Pattern::Subrange::ANYTHING)
-        out->push_back(Pattern::Subrange(Pattern::Subrange::ANYTHING));
-      last_literal = NULL;
-    } else if (s[i] == '\\') {
-      if (i < s.size() - 1 && s[i + 1] == 'b') {
-        // "\b" means path boundary.
-        i++;
-        out->push_back(Pattern::Subrange(Pattern::Subrange::PATH_BOUNDARY));
-        last_literal = NULL;
-      } else {
-        // Backslash + anything else means that literal char.
-        if (!last_literal) {
-          out->push_back(Pattern::Subrange(Pattern::Subrange::LITERAL));
-          last_literal = &(*out)[out->size() - 1];
-        }
-        if (i < s.size() - 1) {
-          i++;
-          last_literal->literal.push_back(s[i]);
-        } else {
-          // Single backslash at end, use literal backslash.
-          last_literal->literal.push_back('\\');
-        }
-      }
-    } else {
-      if (!last_literal) {
-        out->push_back(Pattern::Subrange(Pattern::Subrange::LITERAL));
-        last_literal = &(*out)[out->size() - 1];
-      }
-      last_literal->literal.push_back(s[i]);
-    }
-  }
-}
-
-}  // namespace
-
-Pattern::Pattern(const std::string& s) {
-  ParsePattern(s, &subranges_);
-  is_suffix_ =
-      (subranges_.size() == 2 &&
-       subranges_[0].type == Subrange::ANYTHING &&
-       subranges_[1].type == Subrange::LITERAL);
-}
-
-Pattern::~Pattern() {
-}
-
-bool Pattern::MatchesString(const std::string& s) const {
-  // Empty pattern matches only empty string.
-  if (subranges_.empty())
-    return s.empty();
-
-  if (is_suffix_) {
-    const std::string& suffix = subranges_[1].literal;
-    if (suffix.size() > s.size())
-      return false;  // Too short.
-    return s.compare(s.size() - suffix.size(), suffix.size(), suffix) == 0;
-  }
-
-  return RecursiveMatch(s, 0, 0, true);
-}
-
-// We assume the number of ranges is small so recursive is always reasonable.
-// Could be optimized to only be recursive for *.
-bool Pattern::RecursiveMatch(const std::string& s,
-                             size_t begin_char,
-                             size_t subrange_index,
-                             bool allow_implicit_path_boundary) const {
-  if (subrange_index >= subranges_.size()) {
-    // Hit the end of our subranges, the text should also be at the end for a
-    // match.
-    return begin_char == s.size();
-  }
-
-  const Subrange& sr = subranges_[subrange_index];
-  switch (sr.type) {
-    case Subrange::LITERAL: {
-      if (s.size() - begin_char < sr.literal.size())
-        return false;  // Not enough room.
-      if (s.compare(begin_char, sr.literal.size(), sr.literal) != 0)
-        return false;  // Literal doesn't match.
-
-      // Recursively check the next one.
-      return RecursiveMatch(s, begin_char + sr.literal.size(),
-                            subrange_index + 1, true);
-    }
-
-    case Subrange::PATH_BOUNDARY: {
-      // When we can accept an implicit path boundary, we have to check both
-      // a match of the literal and the implicit one.
-      if (allow_implicit_path_boundary &&
-          (begin_char == 0 || begin_char == s.size())) {
-        // At implicit path boundary, see if the rest of the pattern matches.
-        if (RecursiveMatch(s, begin_char, subrange_index + 1, false))
-          return true;
-      }
-
-      // Check for a literal "/".
-      if (begin_char < s.size() && s[begin_char] == '/') {
-        // At explicit boundary, see if the rest of the pattern matches.
-        if (RecursiveMatch(s, begin_char + 1, subrange_index + 1, true))
-          return true;
-      }
-      return false;
-    }
-
-    case Subrange::ANYTHING: {
-      if (subrange_index == subranges_.size() - 1)
-        return true;  // * at the end, consider it matching.
-
-      size_t min_next_size = sr.MinSize();
-
-      // We don't care about exactly what matched as long as there was a match,
-      // so we can do this front-to-back. If we needed the match, we would
-      // normally want "*" to be greedy so would work backwards.
-      for (size_t i = begin_char; i < s.size() - min_next_size; i++) {
-        // Note: this could probably be faster by detecting the type of the
-        // next match in advance and checking for a match in this loop rather
-        // than doing a full recursive call for each character.
-        if (RecursiveMatch(s, i, subrange_index + 1, true))
-          return true;
-      }
-      return false;
-    }
-
-    default:
-      NOTREACHED();
-  }
-
-  return false;
-}
-
-PatternList::PatternList() {
-}
-
-PatternList::~PatternList() {
-}
-
-void PatternList::SetFromValue(const Value& v, Err* err) {
-  patterns_.clear();
-
-  if (v.type() != Value::LIST) {
-    *err = Err(v.origin(), "This value must be a list.");
-    return;
-  }
-
-  const std::vector<Value>& list = v.list_value();
-  for (size_t i = 0; i < list.size(); i++) {
-    if (!list[i].VerifyTypeIs(Value::STRING, err))
-      return;
-    patterns_.push_back(Pattern(list[i].string_value()));
-  }
-}
-
-bool PatternList::MatchesString(const std::string& s) const {
-  for (size_t i = 0; i < patterns_.size(); i++) {
-    if (patterns_[i].MatchesString(s))
-      return true;
-  }
-  return false;
-}
-
-bool PatternList::MatchesValue(const Value& v) const {
-  if (v.type() == Value::STRING)
-    return MatchesString(v.string_value());
-  return false;
-}
diff --git a/tools/gn/pattern.h b/tools/gn/pattern.h
deleted file mode 100644
index 582cfeab8aaf..000000000000
--- a/tools/gn/pattern.h
+++ /dev/null
@@ -1,86 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_PATTERN_H_
-#define TOOLS_GN_PATTERN_H_
-
-#include <string>
-#include <vector>
-
-#include "tools/gn/value.h"
-
-class Pattern {
- public:
-  struct Subrange {
-    enum Type {
-      LITERAL,  // Matches exactly the contents of the string.
-      ANYTHING,  // * (zero or more chars).
-      PATH_BOUNDARY  // '/' or beginning of string.
-    };
-
-    Subrange(Type t, const std::string& l = std::string())
-        : type(t),
-          literal(l) {
-    }
-
-    // Returns the minimum number of chars that this subrange requires.
-    size_t MinSize() const {
-      switch (type) {
-        case LITERAL:
-          return literal.size();
-        case ANYTHING:
-          return 0;
-        case PATH_BOUNDARY:
-          return 0;  // Can match beginning or end of string, which is 0 len.
-        default:
-          return 0;
-      }
-    }
-
-    Type type;
-
-    // When type == LITERAL this is the text to match.
-    std::string literal;
-  };
-
-  Pattern(const std::string& s);
-  ~Pattern();
-
-  // Returns true if the current pattern matches the given string.
-  bool MatchesString(const std::string& s) const;
-
- private:
-  // allow_implicit_path_boundary determines if a path boundary should accept
-  // matches at the beginning or end of the string.
-  bool RecursiveMatch(const std::string& s,
-                      size_t begin_char,
-                      size_t subrange_index,
-                      bool allow_implicit_path_boundary) const;
-
-  std::vector<Subrange> subranges_;
-
-  // Set to true when the subranges are "*foo" ("ANYTHING" followed by a
-  // literal). This covers most patterns so we optimize for this.
-  bool is_suffix_;
-};
-
-class PatternList {
- public:
-  PatternList();
-  ~PatternList();
-
-  bool is_empty() const { return patterns_.empty(); }
-
-  // Initializes the pattern list from a give list of pattern strings. Sets
-  // |*err| on failure.
-  void SetFromValue(const Value& v, Err* err);
-
-  bool MatchesString(const std::string& s) const;
-  bool MatchesValue(const Value& v) const;
-
- private:
-  std::vector<Pattern> patterns_;
-};
-
-#endif  // TOOLS_GN_PATTERN_H_
diff --git a/tools/gn/pattern_unittest.cc b/tools/gn/pattern_unittest.cc
deleted file mode 100644
index e9ffea6c35f5..000000000000
--- a/tools/gn/pattern_unittest.cc
+++ /dev/null
@@ -1,61 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "testing/gtest/include/gtest/gtest.h"
-#include "tools/gn/pattern.h"
-
-namespace {
-
-struct Case {
-  const char* pattern;
-  const char* candidate;
-  bool expected_match;
-};
-
-}  // namespace
-
-TEST(Pattern, Matches) {
-  Case pattern_cases[] = {
-    // Empty pattern matches only empty string.
-    { "", "", true },
-    { "", "foo", false },
-    // Exact matches.
-    { "foo", "foo", true },
-    { "foo", "bar", false },
-    // Path boundaries.
-    { "\\b", "", true },
-    { "\\b", "/", true },
-    { "\\b\\b", "/", true },
-    { "\\b\\b\\b", "", false },
-    { "\\b\\b\\b", "/", true },
-    { "\\b", "//", false },
-    { "\\bfoo\\b", "foo", true },
-    { "\\bfoo\\b", "/foo/", true },
-    { "\\b\\bfoo", "/foo", true },
-    // *
-    { "*", "", true },
-    { "*", "foo", true },
-    { "*foo", "foo", true },
-    { "*foo", "gagafoo", true },
-    { "*foo", "gagafoob", false },
-    { "foo*bar", "foobar", true },
-    { "foo*bar", "foo-bar", true },
-    { "foo*bar", "foolalalalabar", true },
-    { "foo*bar", "foolalalalabaz", false },
-    { "*a*b*c*d*", "abcd", true },
-    { "*a*b*c*d*", "1a2b3c4d5", true },
-    { "*a*b*c*d*", "1a2b3c45", false },
-    { "*\\bfoo\\b*", "foo", true },
-    { "*\\bfoo\\b*", "/foo/", true },
-    { "*\\bfoo\\b*", "foob", false },
-    { "*\\bfoo\\b*", "lala/foo/bar/baz", true },
-  };
-  for (size_t i = 0; i < arraysize(pattern_cases); i++) {
-    const Case& c = pattern_cases[i];
-    Pattern pattern(c.pattern);
-    bool result = pattern.MatchesString(c.candidate);
-    EXPECT_EQ(c.expected_match, result) << i << ": \"" << c.pattern
-        << "\", \"" << c.candidate << "\"";
-  }
-}
diff --git a/tools/gn/scheduler.cc b/tools/gn/scheduler.cc
deleted file mode 100644
index 33c8f1a44634..000000000000
--- a/tools/gn/scheduler.cc
+++ /dev/null
@@ -1,130 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/scheduler.h"
-
-#include "base/bind.h"
-#include "tools/gn/ninja_target_writer.h"
-#include "tools/gn/standard_out.h"
-
-Scheduler* g_scheduler = NULL;
-
-Scheduler::Scheduler()
-    : pool_(new base::SequencedWorkerPool(32, "worker_")),
-      input_file_manager_(new InputFileManager),
-      verbose_logging_(false),
-      work_count_(0),
-      is_failed_(false) {
-  g_scheduler = this;
-}
-
-Scheduler::~Scheduler() {
-  g_scheduler = NULL;
-}
-
-bool Scheduler::Run() {
-  runner_.Run();
-  pool_->Shutdown();
-  return !is_failed();
-}
-
-void Scheduler::Log(const std::string& verb, const std::string& msg) {
-  if (base::MessageLoop::current() == &main_loop_) {
-    LogOnMainThread(verb, msg);
-  } else {
-    // The run loop always joins on the sub threads, so the lifetime of this
-    // object outlives the invocations of this function, hence "unretained".
-    main_loop_.PostTask(FROM_HERE,
-                        base::Bind(&Scheduler::LogOnMainThread,
-                                   base::Unretained(this), verb, msg));
-  }
-}
-
-void Scheduler::FailWithError(const Err& err) {
-  DCHECK(err.has_error());
-  {
-    base::AutoLock lock(lock_);
-
-    if (is_failed_)
-      return;  // Ignore errors once we see one.
-    is_failed_ = true;
-  }
-
-  if (base::MessageLoop::current() == &main_loop_) {
-    FailWithErrorOnMainThread(err);
-  } else {
-    // The run loop always joins on the sub threads, so the lifetime of this
-    // object outlives the invocations of this function, hence "unretained".
-    main_loop_.PostTask(FROM_HERE,
-                        base::Bind(&Scheduler::FailWithErrorOnMainThread,
-                                   base::Unretained(this), err));
-  }
-}
-
-void Scheduler::ScheduleWork(const base::Closure& work) {
-  IncrementWorkCount();
-  pool_->PostWorkerTaskWithShutdownBehavior(
-      FROM_HERE, base::Bind(&Scheduler::DoWork,
-                            base::Unretained(this), work),
-      base::SequencedWorkerPool::BLOCK_SHUTDOWN);
-}
-
-void Scheduler::ScheduleTargetFileWrite(const Target* target) {
-  pool_->PostWorkerTaskWithShutdownBehavior(
-      FROM_HERE, base::Bind(&Scheduler::DoTargetFileWrite,
-                            base::Unretained(this), target),
-      base::SequencedWorkerPool::BLOCK_SHUTDOWN);
-}
-
-void Scheduler::AddGenDependency(const SourceFile& source_file) {
-  base::AutoLock lock(lock_);
-  gen_dependencies_.push_back(source_file);
-}
-
-std::vector<SourceFile> Scheduler::GetGenDependencies() const {
-  base::AutoLock lock(lock_);
-  return gen_dependencies_;
-}
-
-void Scheduler::IncrementWorkCount() {
-  base::AtomicRefCountInc(&work_count_);
-}
-
-void Scheduler::DecrementWorkCount() {
-  if (!base::AtomicRefCountDec(&work_count_)) {
-    if (base::MessageLoop::current() == &main_loop_) {
-      OnComplete();
-    } else {
-      main_loop_.PostTask(FROM_HERE,
-                          base::Bind(&Scheduler::OnComplete,
-                                     base::Unretained(this)));
-    }
-  }
-}
-
-void Scheduler::LogOnMainThread(const std::string& verb,
-                                const std::string& msg) {
-  OutputString(verb, DECORATION_YELLOW);
-  OutputString(" " + msg + "\n");
-}
-
-void Scheduler::FailWithErrorOnMainThread(const Err& err) {
-  err.PrintToStdout();
-  runner_.Quit();
-}
-
-void Scheduler::DoTargetFileWrite(const Target* target) {
-  NinjaTargetWriter::RunAndWriteFile(target);
-}
-
-void Scheduler::DoWork(const base::Closure& closure) {
-  closure.Run();
-  DecrementWorkCount();
-}
-
-void Scheduler::OnComplete() {
-  // Should be called on the main thread.
-  DCHECK(base::MessageLoop::current() == main_loop());
-  runner_.Quit();
-}
diff --git a/tools/gn/scheduler.h b/tools/gn/scheduler.h
deleted file mode 100644
index eab996da6960..000000000000
--- a/tools/gn/scheduler.h
+++ /dev/null
@@ -1,90 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_SCHEDULER_H_
-#define TOOLS_GN_SCHEDULER_H_
-
-#include "base/atomic_ref_count.h"
-#include "base/basictypes.h"
-#include "base/message_loop/message_loop.h"
-#include "base/run_loop.h"
-#include "base/synchronization/lock.h"
-#include "base/threading/sequenced_worker_pool.h"
-#include "tools/gn/input_file_manager.h"
-
-class Target;
-
-// Maintains the thread pool and error state.
-class Scheduler {
- public:
-  Scheduler();
-  ~Scheduler();
-
-  bool Run();
-
-  base::MessageLoop* main_loop() { return &main_loop_; }
-  base::SequencedWorkerPool* pool() { return pool_; }
-
-  InputFileManager* input_file_manager() { return input_file_manager_; }
-
-  bool verbose_logging() const { return verbose_logging_; }
-  void set_verbose_logging(bool v) { verbose_logging_ = v; }
-
-  // TODO(brettw) data race on this access (benign?).
-  bool is_failed() const { return is_failed_; }
-
-  void Log(const std::string& verb, const std::string& msg);
-  void FailWithError(const Err& err);
-
-  void ScheduleWork(const base::Closure& work);
-
-  void ScheduleTargetFileWrite(const Target* target);
-
-  // Declares that the given file was read and affected the build output.
-  //
-  // TODO(brettw) this is global rather than per-BuildSettings. If we
-  // start using >1 build settings, then we probably want this to take a
-  // BuildSettings object so we know the depdency on a per-build basis.
-  void AddGenDependency(const SourceFile& source_file);
-  std::vector<SourceFile> GetGenDependencies() const;
-
-  // We maintain a count of the things we need to do that works like a
-  // refcount. When this reaches 0, the program exits.
-  void IncrementWorkCount();
-  void DecrementWorkCount();
-
- private:
-  void LogOnMainThread(const std::string& verb, const std::string& msg);
-  void FailWithErrorOnMainThread(const Err& err);
-
-  void DoTargetFileWrite(const Target* target);
-
-  void DoWork(const base::Closure& closure);
-
-  void OnComplete();
-
-  base::MessageLoop main_loop_;
-  scoped_refptr<base::SequencedWorkerPool> pool_;
-
-  scoped_refptr<InputFileManager> input_file_manager_;
-
-  base::RunLoop runner_;
-
-  bool verbose_logging_;
-
-  base::AtomicRefCount work_count_;
-
-  mutable base::Lock lock_;
-  bool is_failed_;
-
-  // Additional input dependencies. Protected by the lock.
-  std::vector<SourceFile> gen_dependencies_;
-
-  DISALLOW_COPY_AND_ASSIGN(Scheduler);
-};
-
-extern Scheduler* g_scheduler;
-
-#endif  // TOOLS_GN_SCHEDULER_H_
-
diff --git a/tools/gn/scope.cc b/tools/gn/scope.cc
deleted file mode 100644
index 72664d7cc425..000000000000
--- a/tools/gn/scope.cc
+++ /dev/null
@@ -1,372 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/scope.h"
-
-#include "base/logging.h"
-#include "base/stl_util.h"
-#include "tools/gn/parse_tree.h"
-
-namespace {
-
-// FLags set in the mode_flags_ of a scope. If a bit is set, it applies
-// recursively to all dependent scopes.
-const unsigned kProcessingBuildConfigFlag = 1;
-const unsigned kProcessingDefaultBuildConfigFlag = 2;
-const unsigned kProcessingImportFlag = 4;
-
-}  // namespace
-
-Scope::Scope(const Settings* settings)
-    : const_containing_(NULL),
-      mutable_containing_(NULL),
-      settings_(settings),
-      mode_flags_(0) {
-}
-
-Scope::Scope(Scope* parent)
-    : const_containing_(NULL),
-      mutable_containing_(parent),
-      settings_(parent->settings()),
-      mode_flags_(0) {
-}
-
-Scope::Scope(const Scope* parent)
-    : const_containing_(parent),
-      mutable_containing_(NULL),
-      settings_(parent->settings()),
-      mode_flags_(0) {
-}
-
-Scope::~Scope() {
-  STLDeleteContainerPairSecondPointers(target_defaults_.begin(),
-                                       target_defaults_.end());
-}
-
-const Value* Scope::GetValue(const base::StringPiece& ident,
-                             bool counts_as_used) {
-  // First check for programatically-provided values.
-  for (ProviderSet::const_iterator i = programmatic_providers_.begin();
-       i != programmatic_providers_.end(); ++i) {
-    const Value* v = (*i)->GetProgrammaticValue(ident);
-    if (v)
-      return v;
-  }
-
-  RecordMap::iterator found = values_.find(ident);
-  if (found != values_.end()) {
-    if (counts_as_used)
-      found->second.used = true;
-    return &found->second.value;
-  }
-
-  // Search in the parent scope.
-  if (const_containing_)
-    return const_containing_->GetValue(ident);
-  if (mutable_containing_)
-    return mutable_containing_->GetValue(ident, counts_as_used);
-  return NULL;
-}
-
-Value* Scope::GetValueForcedToCurrentScope(const base::StringPiece& ident,
-                                           const ParseNode* set_node) {
-  RecordMap::iterator found = values_.find(ident);
-  if (found != values_.end())
-    return &found->second.value;  // Already have in the current scope.
-
-  // Search in the parent scope.
-  if (containing()) {
-    const Value* in_containing = containing()->GetValue(ident);
-    if (in_containing) {
-      // Promote to current scope.
-      return SetValue(ident, *in_containing, set_node);
-    }
-  }
-  return NULL;
-}
-
-const Value* Scope::GetValue(const base::StringPiece& ident) const {
-  RecordMap::const_iterator found = values_.find(ident);
-  if (found != values_.end())
-    return &found->second.value;
-  if (containing())
-    return containing()->GetValue(ident);
-  return NULL;
-}
-
-Value* Scope::SetValue(const base::StringPiece& ident,
-                       const Value& v,
-                       const ParseNode* set_node) {
-  Record& r = values_[ident];  // Clears any existing value.
-  r.value = v;
-  r.value.set_origin(set_node);
-  return &r.value;
-}
-
-bool Scope::AddTemplate(const std::string& name, const FunctionCallNode* decl) {
-  if (GetTemplate(name))
-    return false;
-  templates_[name] = decl;
-  return true;
-}
-
-const FunctionCallNode* Scope::GetTemplate(const std::string& name) const {
-  TemplateMap::const_iterator found = templates_.find(name);
-  if (found != templates_.end())
-    return found->second;
-  if (containing())
-    return containing()->GetTemplate(name);
-  return NULL;
-}
-
-void Scope::MarkUsed(const base::StringPiece& ident) {
-  RecordMap::iterator found = values_.find(ident);
-  if (found == values_.end()) {
-    NOTREACHED();
-    return;
-  }
-  found->second.used = true;
-}
-
-void Scope::MarkUnused(const base::StringPiece& ident) {
-  RecordMap::iterator found = values_.find(ident);
-  if (found == values_.end()) {
-    NOTREACHED();
-    return;
-  }
-  found->second.used = false;
-}
-
-bool Scope::IsSetButUnused(const base::StringPiece& ident) const {
-  RecordMap::const_iterator found = values_.find(ident);
-  if (found != values_.end()) {
-    if (!found->second.used) {
-      return true;
-    }
-  }
-  return false;
-}
-
-bool Scope::CheckForUnusedVars(Err* err) const {
-  for (RecordMap::const_iterator i = values_.begin();
-       i != values_.end(); ++i) {
-    if (!i->second.used) {
-      std::string help = "You set the variable \"" + i->first.as_string() +
-          "\" here and it was unused before it went\nout of scope.";
-
-      const BinaryOpNode* binary = i->second.value.origin()->AsBinaryOp();
-      if (binary) {
-        // Make a nicer error message for normal var sets.
-        *err = Err(binary->left()->GetRange(), "Assignment had no effect.",
-                   help);
-      } else {
-        // This will happen for internally-generated variables.
-        *err = Err(i->second.value.origin(), "Assignment had no effect.", help);
-      }
-      return false;
-    }
-  }
-  return true;
-}
-
-void Scope::GetCurrentScopeValues(KeyValueVector* output) const {
-  output->reserve(values_.size());
-  for (RecordMap::const_iterator i = values_.begin(); i != values_.end(); ++i) {
-    output->push_back(std::make_pair(i->first, i->second.value));
-  }
-}
-
-bool Scope::NonRecursiveMergeTo(Scope* dest,
-                                const ParseNode* node_for_err,
-                                const char* desc_for_err,
-                                Err* err) const {
-  // Values.
-  for (RecordMap::const_iterator i = values_.begin(); i != values_.end(); ++i) {
-    const Value* existing_value = dest->GetValue(i->first);
-    if (existing_value) {
-      // Value present in both the source and the dest.
-      std::string desc_string(desc_for_err);
-      *err = Err(node_for_err, "Value collision.",
-          "This " + desc_string + " contains \"" + i->first.as_string() + "\"");
-      err->AppendSubErr(Err(i->second.value, "defined here.",
-          "Which would clobber the one in your current scope"));
-      err->AppendSubErr(Err(*existing_value, "defined here.",
-          "Executing " + desc_string + " should not conflict with anything "
-          "in the current\nscope."));
-      return false;
-    }
-    dest->values_[i->first] = i->second;
-  }
-
-  // Target defaults are owning pointers.
-  for (NamedScopeMap::const_iterator i = target_defaults_.begin();
-       i != target_defaults_.end(); ++i) {
-    if (dest->GetTargetDefaults(i->first)) {
-      // TODO(brettw) it would be nice to know the origin of a
-      // set_target_defaults so we can give locations for the colliding target
-      // defaults.
-      std::string desc_string(desc_for_err);
-      *err = Err(node_for_err, "Target defaults collision.",
-          "This " + desc_string + " contains target defaults for\n"
-          "\"" + i->first + "\" which would clobber one for the\n"
-          "same target type in your current scope. It's unfortunate that I'm "
-          "too stupid\nto tell you the location of where the target defaults "
-          "were set. Usually\nthis happens in the BUILDCONFIG.gn file.");
-      return false;
-    }
-
-    Scope* s = new Scope(settings_);
-    i->second->NonRecursiveMergeTo(s, node_for_err, "<SHOULDN'T HAPPEN>", err);
-    dest->target_defaults_[i->first] = s;
-  }
-
-  // Sources assignment filter.
-  if (sources_assignment_filter_) {
-    if (dest->GetSourcesAssignmentFilter()) {
-      // Sources assignment filter present in both the source and the dest.
-      std::string desc_string(desc_for_err);
-      *err = Err(node_for_err, "Assignment filter collision.",
-          "The " + desc_string + " contains a sources_assignment_filter which\n"
-          "would clobber the one in your current scope.");
-      return false;
-    }
-    dest->sources_assignment_filter_.reset(
-        new PatternList(*sources_assignment_filter_));
-  }
-
-  // Templates.
-  for (TemplateMap::const_iterator i = templates_.begin();
-       i != templates_.end(); ++i) {
-    const FunctionCallNode* existing_template = dest->GetTemplate(i->first);
-    if (existing_template) {
-      // Rule present in both the source and the dest.
-      std::string desc_string(desc_for_err);
-      *err = Err(node_for_err, "Template collision.",
-          "This " + desc_string + " contains a template \"" + i->first + "\"");
-      err->AppendSubErr(Err(i->second->function(), "defined here.",
-          "Which would clobber the one in your current scope"));
-      err->AppendSubErr(Err(existing_template->function(), "defined here.",
-          "Executing " + desc_string + " should not conflict with anything "
-          "in the current\nscope."));
-      return false;
-    }
-    dest->templates_.insert(*i);
-  }
-
-  return true;
-}
-
-Scope* Scope::MakeTargetDefaults(const std::string& target_type) {
-  if (GetTargetDefaults(target_type))
-    return NULL;
-
-  Scope** dest = &target_defaults_[target_type];
-  if (*dest) {
-    NOTREACHED();  // Already set.
-    return *dest;
-  }
-  *dest = new Scope(settings_);
-  return *dest;
-}
-
-const Scope* Scope::GetTargetDefaults(const std::string& target_type) const {
-  NamedScopeMap::const_iterator found = target_defaults_.find(target_type);
-  if (found != target_defaults_.end())
-    return found->second;
-  if (containing())
-    return containing()->GetTargetDefaults(target_type);
-  return NULL;
-}
-
-const PatternList* Scope::GetSourcesAssignmentFilter() const {
-  if (sources_assignment_filter_)
-    return sources_assignment_filter_.get();
-  if (containing())
-    return containing()->GetSourcesAssignmentFilter();
-  return NULL;
-}
-
-void Scope::SetProcessingBuildConfig() {
-  DCHECK((mode_flags_ & kProcessingBuildConfigFlag) == 0);
-  mode_flags_ |= kProcessingBuildConfigFlag;
-}
-
-void Scope::ClearProcessingBuildConfig() {
-  DCHECK(mode_flags_ & kProcessingBuildConfigFlag);
-  mode_flags_ &= ~(kProcessingBuildConfigFlag);
-}
-
-bool Scope::IsProcessingBuildConfig() const {
-  if (mode_flags_ & kProcessingBuildConfigFlag)
-    return true;
-  if (containing())
-    return containing()->IsProcessingBuildConfig();
-  return false;
-}
-
-void Scope::SetProcessingDefaultBuildConfig() {
-  DCHECK((mode_flags_ & kProcessingDefaultBuildConfigFlag) == 0);
-  mode_flags_ |= kProcessingDefaultBuildConfigFlag;
-}
-
-void Scope::ClearProcessingDefaultBuildConfig() {
-  DCHECK(mode_flags_ & kProcessingDefaultBuildConfigFlag);
-  mode_flags_ &= ~(kProcessingDefaultBuildConfigFlag);
-}
-
-bool Scope::IsProcessingDefaultBuildConfig() const {
-  if (mode_flags_ & kProcessingDefaultBuildConfigFlag)
-    return true;
-  if (containing())
-    return containing()->IsProcessingDefaultBuildConfig();
-  return false;
-}
-
-void Scope::SetProcessingImport() {
-  DCHECK((mode_flags_ & kProcessingImportFlag) == 0);
-  mode_flags_ |= kProcessingImportFlag;
-}
-
-void Scope::ClearProcessingImport() {
-  DCHECK(mode_flags_ & kProcessingImportFlag);
-  mode_flags_ &= ~(kProcessingImportFlag);
-}
-
-bool Scope::IsProcessingImport() const {
-  if (mode_flags_ & kProcessingImportFlag)
-    return true;
-  if (containing())
-    return containing()->IsProcessingImport();
-  return false;
-}
-
-void Scope::SetProperty(const void* key, void* value) {
-  if (!value) {
-    DCHECK(properties_.find(key) != properties_.end());
-    properties_.erase(key);
-  } else {
-    properties_[key] = value;
-  }
-}
-
-void* Scope::GetProperty(const void* key, const Scope** found_on_scope) const {
-  PropertyMap::const_iterator found = properties_.find(key);
-  if (found != properties_.end()) {
-    if (found_on_scope)
-      *found_on_scope = this;
-    return found->second;
-  }
-  if (containing())
-    return containing()->GetProperty(key, found_on_scope);
-  return NULL;
-}
-
-void Scope::AddProvider(ProgrammaticProvider* p) {
-  programmatic_providers_.insert(p);
-}
-
-void Scope::RemoveProvider(ProgrammaticProvider* p) {
-  DCHECK(programmatic_providers_.find(p) != programmatic_providers_.end());
-  programmatic_providers_.erase(p);
-}
diff --git a/tools/gn/scope.h b/tools/gn/scope.h
deleted file mode 100644
index 7d0547ed4d49..000000000000
--- a/tools/gn/scope.h
+++ /dev/null
@@ -1,260 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_SCOPE_H_
-#define TOOLS_GN_SCOPE_H_
-
-#include <map>
-#include <set>
-
-#include "base/basictypes.h"
-#include "base/containers/hash_tables.h"
-#include "base/memory/scoped_ptr.h"
-#include "tools/gn/err.h"
-#include "tools/gn/pattern.h"
-#include "tools/gn/value.h"
-
-class FunctionCallNode;
-class ImportManager;
-class ParseNode;
-class Settings;
-class TargetManager;
-
-// Scope for the script execution.
-//
-// Scopes are nested. Writing goes into the toplevel scope, reading checks
-// values resursively down the stack until a match is found or there are no
-// more containing scopes.
-//
-// A containing scope can be const or non-const. The const containing scope is
-// used primarily to refer to the master build config which is shared across
-// many invocations. A const containing scope, however, prevents us from
-// marking variables "used" which prevents us from issuing errors on unused
-// variables. So you should use a non-const containing scope whenever possible.
-class Scope {
- public:
-  typedef std::vector<std::pair<base::StringPiece, Value> > KeyValueVector;
-
-  // Allows code to provide values for built-in variables. This class will
-  // automatically register itself on construction and deregister itself on
-  // destruction.
-  class ProgrammaticProvider {
-   public:
-    ProgrammaticProvider(Scope* scope) : scope_(scope) {
-      scope_->AddProvider(this);
-    }
-    ~ProgrammaticProvider() {
-      scope_->RemoveProvider(this);
-    }
-
-    // Returns a non-null value if the given value can be programmatically
-    // generated, or NULL if there is none.
-    virtual const Value* GetProgrammaticValue(
-        const base::StringPiece& ident) = 0;
-
-   protected:
-    Scope* scope_;
-  };
-
-  // Creates an empty toplevel scope.
-  Scope(const Settings* settings);
-
-  // Creates a dependent scope.
-  Scope(Scope* parent);
-  Scope(const Scope* parent);
-
-  ~Scope();
-
-  const Settings* settings() const { return settings_; }
-
-  // See the const_/mutable_containing_ var declaraions below. Yes, it's a
-  // bit weird that we can have a const pointer to the "mutable" one.
-  Scope* mutable_containing() { return mutable_containing_; }
-  const Scope* mutable_containing() const { return mutable_containing_; }
-  const Scope* const_containing() const { return const_containing_; }
-  const Scope* containing() const {
-    return mutable_containing_ ? mutable_containing_ : const_containing_;
-  }
-
-  // Returns NULL if there's no such value.
-  //
-  // counts_as_used should be set if the variable is being read in a way that
-  // should count for unused variable checking.
-  const Value* GetValue(const base::StringPiece& ident,
-                        bool counts_as_used);
-  const Value* GetValue(const base::StringPiece& ident) const;
-
-  // Same as GetValue, but if the value exists in a parent scope, we'll copy
-  // it to the current scope. If the return value is non-null, the value is
-  // guaranteed to be set in the current scope. Generatlly this will be used
-  // if the calling code is planning on modifying the value in-place.
-  //
-  // Since this is used when doing read-modifies, we never count this access
-  // as reading the variable, since we assume it will be written to.
-  Value* GetValueForcedToCurrentScope(const base::StringPiece& ident,
-                                      const ParseNode* set_node);
-
-  // The set_node indicates the statement that caused the set, for displaying
-  // errors later. Returns a pointer to the value in the current scope (a copy
-  // is made for storage).
-  Value* SetValue(const base::StringPiece& ident,
-                  const Value& v,
-                  const ParseNode* set_node);
-
-  // Templates associated with this scope. A template can only be set once, so
-  // AddTemplate will fail and return NULL if a rule with that name already
-  // exists. GetTemplate returns NULL if the rule doesn't exist, and it will
-  // check all containing scoped rescursively.
-  bool AddTemplate(const std::string& name, const FunctionCallNode* decl);
-  const FunctionCallNode* GetTemplate(const std::string& name) const;
-
-  // Marks the given identifier as (un)used in the current scope.
-  void MarkUsed(const base::StringPiece& ident);
-  void MarkUnused(const base::StringPiece& ident);
-
-  // Checks to see if the scope has a var set that hasn't been used. This is
-  // called before replacing the var with a different one. It does not check
-  // containing scopes.
-  //
-  // If the identifier is present but hasnn't been used, return true.
-  bool IsSetButUnused(const base::StringPiece& ident) const;
-
-  // Checks the scope to see if any values were set but not used, and fills in
-  // the error and returns false if they were.
-  bool CheckForUnusedVars(Err* err) const;
-
-  // Returns all values set in the current scope, without going to the parent
-  // scopes.
-  void GetCurrentScopeValues(KeyValueVector* output) const;
-
-  // Copies this scope's values into the destination. Values from the
-  // containing scope(s) (normally shadowed into the current one) will not be
-  // copied, neither will the reference to the containing scope (this is why
-  // it's "non-recursive").
-  //
-  // It is an error to merge a variable into a scope that already has something
-  // with that name in scope (meaning in that scope or in any of its containing
-  // scopes). If this happens, the error will be set and the function will
-  // return false.
-  //
-  // This is used in different contexts. When generating the error, the given
-  // parse node will be blamed, and the given desc will be used to describe
-  // the operation that doesn't support doing this. For example, desc_for_err
-  // would be "import" when doing an import, and the error string would say
-  // something like "The import contains...".
-  bool NonRecursiveMergeTo(Scope* dest,
-                           const ParseNode* node_for_err,
-                           const char* desc_for_err,
-                           Err* err) const;
-
-  // Makes an empty scope with the given name. Returns NULL if the name is
-  // already set.
-  Scope* MakeTargetDefaults(const std::string& target_type);
-
-  // Gets the scope associated with the given target name, or null if it hasn't
-  // been set.
-  const Scope* GetTargetDefaults(const std::string& target_type) const;
-
-  // Filter to apply when the sources variable is assigned. May return NULL.
-  const PatternList* GetSourcesAssignmentFilter() const;
-  void set_sources_assignment_filter(
-      scoped_ptr<PatternList> f) {
-    sources_assignment_filter_ = f.Pass();
-  }
-
-  // Indicates if we're currently processing the build configuration file.
-  // This is true when processing the config file for any toolchain. See also
-  // *ProcessingDefaultBuildConfig() below.
-  //
-  // To set or clear the flag, it must currently be in the opposite state in
-  // the current scope. Note that querying the state of the flag recursively
-  // checks all containing scopes until it reaches the top or finds the flag
-  // set.
-  void SetProcessingBuildConfig();
-  void ClearProcessingBuildConfig();
-  bool IsProcessingBuildConfig() const;
-
-  // Indicates we're currently processing the default toolchain's build
-  // configuration file.
-  void SetProcessingDefaultBuildConfig();
-  void ClearProcessingDefaultBuildConfig();
-  bool IsProcessingDefaultBuildConfig() const;
-
-  // Indicates if we're currently processing an import file.
-  //
-  // See SetProcessingBaseConfig for how flags work.
-  void SetProcessingImport();
-  void ClearProcessingImport();
-  bool IsProcessingImport() const;
-
-  // Properties are opaque pointers that code can use to set state on a Scope
-  // that it can retrieve later.
-  //
-  // The key should be a pointer to some use-case-specific object (to avoid
-  // collisions, otherwise it doesn't matter). Memory management is up to the
-  // setter. Setting the value to NULL will delete the property.
-  //
-  // Getting a property recursively searches all scopes, and the optional
-  // |found_on_scope| variable will be filled with the actual scope containing
-  // the key (if the pointer is non-NULL).
-  void SetProperty(const void* key, void* value);
-  void* GetProperty(const void* key, const Scope** found_on_scope) const;
-
- private:
-  friend class ProgrammaticProvider;
-
-  struct Record {
-    Record() : used(false) {}
-    Record(const Value& v) : used(false), value(v) {}
-
-    bool used;  // Set to true when the variable is used.
-    Value value;
-  };
-
-  void AddProvider(ProgrammaticProvider* p);
-  void RemoveProvider(ProgrammaticProvider* p);
-
-  // Scopes can have no containing scope (both null), a mutable containing
-  // scope, or a const containing scope. The reason is that when we're doing
-  // a new target, we want to refer to the base_config scope which will be read
-  // by multiple threads at the same time, so we REALLY want it to be const.
-  // When you jsut do a nested {}, however, we sometimes want to be able to
-  // change things (especially marking unused vars).
-  const Scope* const_containing_;
-  Scope* mutable_containing_;
-
-  const Settings* settings_;
-
-  // Bits set for different modes. See the flag definitions in the .cc file
-  // for more.
-  unsigned mode_flags_;
-
-  typedef base::hash_map<base::StringPiece, Record> RecordMap;
-  RecordMap values_;
-
-  // Owning pointers. Note that this can't use string pieces since the names
-  // are constructed from Values which might be deallocated before this goes
-  // out of scope.
-  typedef base::hash_map<std::string, Scope*> NamedScopeMap;
-  NamedScopeMap target_defaults_;
-
-  // Null indicates not set and that we should fallback to the containing
-  // scope's filter.
-  scoped_ptr<PatternList> sources_assignment_filter_;
-
-  // Non-owning pointers, the function calls are owned by the input file which
-  // should be kept around by the input file manager.
-  typedef std::map<std::string, const FunctionCallNode*> TemplateMap;
-  TemplateMap templates_;
-
-  typedef std::map<const void*, void*> PropertyMap;
-  PropertyMap properties_;
-
-  typedef std::set<ProgrammaticProvider*> ProviderSet;
-  ProviderSet programmatic_providers_;
-
-  DISALLOW_COPY_AND_ASSIGN(Scope);
-};
-
-#endif  // TOOLS_GN_SCOPE_H_
diff --git a/tools/gn/scope_per_file_provider.cc b/tools/gn/scope_per_file_provider.cc
deleted file mode 100644
index 1799d9e12b96..000000000000
--- a/tools/gn/scope_per_file_provider.cc
+++ /dev/null
@@ -1,186 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/scope_per_file_provider.h"
-
-#include "tools/gn/filesystem_utils.h"
-#include "tools/gn/settings.h"
-#include "tools/gn/source_file.h"
-#include "tools/gn/toolchain_manager.h"
-#include "tools/gn/value.h"
-
-const char* ScopePerFileProvider::kDefaultToolchain =
-    "default_toolchain";
-const char* ScopePerFileProvider::kPythonPath =
-    "python_path";
-const char* ScopePerFileProvider::kToolchain =
-    "toolchain";
-const char* ScopePerFileProvider::kRootOutputDirName =
-    "root_output_dir";
-const char* ScopePerFileProvider::kRootGenDirName =
-    "root_gen_dir";
-const char* ScopePerFileProvider::kTargetOutputDirName =
-    "target_output_dir";
-const char* ScopePerFileProvider::kTargetGenDirName =
-    "target_gen_dir";
-const char* ScopePerFileProvider::kRelativeRootOutputDirName =
-    "relative_root_output_dir";
-const char* ScopePerFileProvider::kRelativeRootGenDirName =
-    "relative_root_gen_dir";
-const char* ScopePerFileProvider::kRelativeTargetOutputDirName =
-    "relative_target_output_dir";
-const char* ScopePerFileProvider::kRelativeTargetGenDirName =
-    "relative_target_gen_dir";
-
-ScopePerFileProvider::ScopePerFileProvider(Scope* scope,
-                                           const SourceFile& source_file)
-    : ProgrammaticProvider(scope),
-      source_file_(source_file) {
-}
-
-ScopePerFileProvider::~ScopePerFileProvider() {
-}
-
-const Value* ScopePerFileProvider::GetProgrammaticValue(
-    const base::StringPiece& ident) {
-  if (ident == kDefaultToolchain)
-    return GetDefaultToolchain();
-  if (ident == kPythonPath)
-    return GetPythonPath();
-
-  if (ident == kTargetOutputDirName)
-    return GetTargetOutputDir();
-  if (ident == kTargetGenDirName)
-    return GetTargetGenDir();
-
-  if (ident == kRelativeRootOutputDirName)
-    return GetRelativeRootOutputDir();
-  if (ident == kRelativeRootGenDirName)
-    return GetRelativeRootGenDir();
-  if (ident == kRelativeTargetOutputDirName)
-    return GetRelativeTargetOutputDir();
-  if (ident == kRelativeTargetGenDirName)
-    return GetRelativeTargetGenDir();
-  return NULL;
-}
-
-// static
-Value ScopePerFileProvider::GetRootOutputDir(const Settings* settings) {
-  return Value(NULL, GetRootOutputDirWithNoLastSlash(settings));
-}
-
-// static
-Value ScopePerFileProvider::GetRootGenDir(const Settings* settings) {
-  return Value(NULL, GetRootGenDirWithNoLastSlash(settings));
-}
-
-const Value* ScopePerFileProvider::GetDefaultToolchain() {
-  if (!default_toolchain_) {
-    const ToolchainManager& toolchain_manager =
-        scope_->settings()->build_settings()->toolchain_manager();
-    default_toolchain_.reset(new Value(NULL,
-        toolchain_manager.GetDefaultToolchainUnlocked().GetUserVisibleName(
-            false)));
-  }
-  return default_toolchain_.get();
-}
-
-const Value* ScopePerFileProvider::GetPythonPath() {
-  if (!python_path_) {
-    python_path_.reset(new Value(NULL,
-        FilePathToUTF8(scope_->settings()->build_settings()->python_path())));
-  }
-  return python_path_.get();
-}
-
-const Value* ScopePerFileProvider::GetToolchain() {
-  if (!toolchain_) {
-    toolchain_.reset(new Value(NULL,
-        scope_->settings()->toolchain()->label().GetUserVisibleName(false)));
-  }
-  return toolchain_.get();
-}
-
-const Value* ScopePerFileProvider::GetTargetOutputDir() {
-  if (!target_output_dir_) {
-    target_output_dir_.reset(new Value(NULL,
-        GetRootOutputDirWithNoLastSlash(scope_->settings()) +
-        GetFileDirWithNoLastSlash()));
-  }
-  return target_output_dir_.get();
-}
-
-const Value* ScopePerFileProvider::GetTargetGenDir() {
-  if (!target_output_dir_) {
-    target_gen_dir_.reset(new Value(NULL,
-        GetRootGenDirWithNoLastSlash(scope_->settings()) +
-        GetFileDirWithNoLastSlash()));
-  }
-  return target_gen_dir_.get();
-}
-
-const Value* ScopePerFileProvider::GetRelativeRootOutputDir() {
-  if (!relative_root_output_dir_) {
-    relative_root_output_dir_.reset(new Value(NULL,
-        GetRelativeRootWithNoLastSlash() +
-        GetRootOutputDirWithNoLastSlash(scope_->settings())));
-  }
-  return relative_root_output_dir_.get();
-}
-
-const Value* ScopePerFileProvider::GetRelativeRootGenDir() {
-  if (!relative_root_gen_dir_) {
-    relative_root_gen_dir_.reset(new Value(NULL,
-        GetRelativeRootWithNoLastSlash() +
-        GetRootGenDirWithNoLastSlash(scope_->settings())));
-  }
-  return relative_root_gen_dir_.get();
-}
-
-const Value* ScopePerFileProvider::GetRelativeTargetOutputDir() {
-  if (!relative_target_output_dir_) {
-    relative_target_output_dir_.reset(new Value(NULL,
-        GetRelativeRootWithNoLastSlash() +
-        GetRootOutputDirWithNoLastSlash(scope_->settings()) + "obj/" +
-        GetFileDirWithNoLastSlash()));
-  }
-  return relative_target_output_dir_.get();
-}
-
-const Value* ScopePerFileProvider::GetRelativeTargetGenDir() {
-  if (!relative_target_gen_dir_) {
-    relative_target_gen_dir_.reset(new Value(NULL,
-        GetRelativeRootWithNoLastSlash() +
-        GetRootGenDirWithNoLastSlash(scope_->settings()) +
-        GetFileDirWithNoLastSlash()));
-  }
-  return relative_target_gen_dir_.get();
-}
-
-// static
-std::string ScopePerFileProvider::GetRootOutputDirWithNoLastSlash(
-    const Settings* settings) {
-  const std::string& output_dir =
-      settings->build_settings()->build_dir().value();
-  CHECK(!output_dir.empty());
-  return output_dir.substr(0, output_dir.size() - 1);
-}
-
-// static
-std::string ScopePerFileProvider::GetRootGenDirWithNoLastSlash(
-    const Settings* settings) {
-  return GetRootOutputDirWithNoLastSlash(settings) + "/gen";
-}
-
-std::string ScopePerFileProvider::GetFileDirWithNoLastSlash() const {
-  std::string dir_value = source_file_.GetDir().value();
-  return dir_value.substr(0, dir_value.size() - 1);
-}
-
-std::string ScopePerFileProvider::GetRelativeRootWithNoLastSlash() const {
-  std::string inverted = InvertDir(source_file_.GetDir());
-  if (inverted.empty())
-    return ".";
-  return inverted.substr(0, inverted.size() - 1);
-}
diff --git a/tools/gn/scope_per_file_provider.h b/tools/gn/scope_per_file_provider.h
deleted file mode 100644
index 1edb7690aae0..000000000000
--- a/tools/gn/scope_per_file_provider.h
+++ /dev/null
@@ -1,79 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_SCOPE_PER_FILE_PROVIDER_H_
-#define TOOLS_GN_SCOPE_PER_FILE_PROVIDER_H_
-
-#include "base/basictypes.h"
-#include "base/memory/scoped_ptr.h"
-#include "tools/gn/scope.h"
-#include "tools/gn/source_file.h"
-
-// ProgrammaticProvider for a scope to provide it with per-file built-in
-// variable support.
-class ScopePerFileProvider : public Scope::ProgrammaticProvider {
- public:
-  ScopePerFileProvider(Scope* scope, const SourceFile& source_file);
-  virtual ~ScopePerFileProvider();
-
-  // ProgrammaticProvider implementation.
-  virtual const Value* GetProgrammaticValue(
-      const base::StringPiece& ident) OVERRIDE;
-
-  // Returns the value to expose to script for the given thing. These values
-  // are acually set globally, but are put here so we can keep all logic
-  // for converting paths to built-in values in this one file.
-  static Value GetRootOutputDir(const Settings* settings);
-  static Value GetRootGenDir(const Settings* settings);
-
-  // Variable names. These two should be set globally independent of the file
-  // being processed.
-  static const char* kRootOutputDirName;
-  static const char* kRootGenDirName;
-
-  // Variable names. These are provided by this class as needed.
-  static const char* kDefaultToolchain;
-  static const char* kPythonPath;
-  static const char* kToolchain;
-  static const char* kTargetOutputDirName;
-  static const char* kTargetGenDirName;
-  static const char* kRelativeRootOutputDirName;
-  static const char* kRelativeRootGenDirName;
-  static const char* kRelativeTargetOutputDirName;
-  static const char* kRelativeTargetGenDirName;
-
- private:
-  const Value* GetDefaultToolchain();
-  const Value* GetPythonPath();
-  const Value* GetToolchain();
-  const Value* GetTargetOutputDir();
-  const Value* GetTargetGenDir();
-  const Value* GetRelativeRootOutputDir();
-  const Value* GetRelativeRootGenDir();
-  const Value* GetRelativeTargetOutputDir();
-  const Value* GetRelativeTargetGenDir();
-
-  static std::string GetRootOutputDirWithNoLastSlash(const Settings* settings);
-  static std::string GetRootGenDirWithNoLastSlash(const Settings* settings);
-
-  std::string GetFileDirWithNoLastSlash() const;
-  std::string GetRelativeRootWithNoLastSlash() const;
-
-  SourceFile source_file_;
-
-  // All values are lazily created.
-  scoped_ptr<Value> default_toolchain_;
-  scoped_ptr<Value> python_path_;
-  scoped_ptr<Value> toolchain_;
-  scoped_ptr<Value> target_output_dir_;
-  scoped_ptr<Value> target_gen_dir_;
-  scoped_ptr<Value> relative_root_output_dir_;
-  scoped_ptr<Value> relative_root_gen_dir_;
-  scoped_ptr<Value> relative_target_output_dir_;
-  scoped_ptr<Value> relative_target_gen_dir_;
-
-  DISALLOW_COPY_AND_ASSIGN(ScopePerFileProvider);
-};
-
-#endif  // TOOLS_GN_SCOPE_PER_FILE_PROVIDER_H_
diff --git a/tools/gn/secondary/base/BUILD.gn b/tools/gn/secondary/base/BUILD.gn
deleted file mode 100644
index 2286b19b7019..000000000000
--- a/tools/gn/secondary/base/BUILD.gn
+++ /dev/null
@@ -1,919 +0,0 @@
-# found in the LICENSE file.
-
-component("base") {
-  sources = [
-    "../build/build_config.h",
-    "third_party/dmg_fp/dmg_fp.h",
-    "third_party/dmg_fp/g_fmt.cc",
-    "third_party/dmg_fp/dtoa_wrapper.cc",
-    "third_party/icu/icu_utf.cc",
-    "third_party/icu/icu_utf.h",
-    "third_party/nspr/prcpucfg.h",
-    "third_party/nspr/prcpucfg_freebsd.h",
-    "third_party/nspr/prcpucfg_linux.h",
-    "third_party/nspr/prcpucfg_mac.h",
-    "third_party/nspr/prcpucfg_nacl.h",
-    "third_party/nspr/prcpucfg_openbsd.h",
-    "third_party/nspr/prcpucfg_solaris.h",
-    "third_party/nspr/prcpucfg_win.h",
-    "third_party/nspr/prtime.cc",
-    "third_party/nspr/prtime.h",
-    "third_party/nspr/prtypes.h",
-    "third_party/xdg_mime/xdgmime.h",
-    "allocator/allocator_extension.cc",
-    "allocator/allocator_extension.h",
-    "allocator/type_profiler_control.cc",
-    "allocator/type_profiler_control.h",
-    "android/activity_status.cc",
-    "android/activity_status.h",
-    "android/base_jni_registrar.cc",
-    "android/base_jni_registrar.h",
-    "android/build_info.cc",
-    "android/build_info.h",
-    "android/cpu_features.cc",
-    "android/fifo_utils.cc",
-    "android/fifo_utils.h",
-    "android/important_file_writer_android.cc",
-    "android/important_file_writer_android.h",
-    "android/scoped_java_ref.cc",
-    "android/scoped_java_ref.h",
-    "android/jni_android.cc",
-    "android/jni_android.h",
-    "android/jni_array.cc",
-    "android/jni_array.h",
-    "android/jni_helper.cc",
-    "android/jni_helper.h",
-    "android/jni_registrar.cc",
-    "android/jni_registrar.h",
-    "android/jni_string.cc",
-    "android/jni_string.h",
-    "android/memory_pressure_listener_android.cc",
-    "android/memory_pressure_listener_android.h",
-    "android/path_service_android.cc",
-    "android/path_service_android.h",
-    "android/path_utils.cc",
-    "android/path_utils.h",
-    "android/sys_utils.cc",
-    "android/sys_utils.h",
-    "android/thread_utils.h",
-    "at_exit.cc",
-    "at_exit.h",
-    "atomic_ref_count.h",
-    "atomic_sequence_num.h",
-    "atomicops.h",
-    "atomicops_internals_gcc.h",
-    "atomicops_internals_mac.h",
-    "atomicops_internals_tsan.h",
-    "atomicops_internals_x86_gcc.cc",
-    "atomicops_internals_x86_gcc.h",
-    "atomicops_internals_x86_msvc.h",
-    "base_export.h",
-    "base_paths.cc",
-    "base_paths.h",
-    "base_paths_android.cc",
-    "base_paths_android.h",
-    "base_paths_mac.h",
-    "base_paths_mac.mm",
-    "base_paths_posix.cc",
-    "base_paths_posix.h",
-    "base_paths_win.cc",
-    "base_paths_win.h",
-    "base_switches.h",
-    "base64.cc",
-    "base64.h",
-    "basictypes.h",
-    "bind.h",
-    "bind_helpers.cc",
-    "bind_helpers.h",
-    "bind_internal.h",
-    "bind_internal_win.h",
-    "bits.h",
-    "build_time.cc",
-    "build_time.h",
-    "callback.h",
-    "callback_helpers.h",
-    "callback_internal.cc",
-    "callback_internal.h",
-    "cancelable_callback.h",
-    "chromeos/chromeos_version.cc",
-    "chromeos/chromeos_version.h",
-    "command_line.cc",
-    "command_line.h",
-    "compiler_specific.h",
-    "containers/hash_tables.h",
-    "containers/linked_list.h",
-    "containers/mru_cache.h",
-    "containers/small_map.h",
-    "containers/stack_container.h",
-    "cpu.cc",
-    "cpu.h",
-    "critical_closure.h",
-    "critical_closure_ios.mm",
-    "debug/alias.cc",
-    "debug/alias.h",
-    "debug/crash_logging.cc",
-    "debug/crash_logging.h",
-    "debug/debug_on_start_win.cc",
-    "debug/debug_on_start_win.h",
-    "debug/debugger.cc",
-    "debug/debugger.h",
-    "debug/debugger_posix.cc",
-    "debug/debugger_win.cc",
-    # This file depends on files from the "allocator" target,
-    # but this target does not depend on "allocator" (see
-    # allocator.gyp for details).
-    "debug/leak_annotations.h",
-    "debug/leak_tracker.h",
-    "debug/proc_maps_linux.cc",
-    "debug/proc_maps_linux.h",
-    "debug/profiler.cc",
-    "debug/profiler.h",
-    "debug/stack_trace.cc",
-    "debug/stack_trace.h",
-    "debug/stack_trace_android.cc",
-    "debug/stack_trace_ios.mm",
-    "debug/stack_trace_posix.cc",
-    "debug/stack_trace_win.cc",
-    "debug/trace_event.h",
-    "debug/trace_event_android.cc",
-    "debug/trace_event_impl.cc",
-    "debug/trace_event_impl.h",
-    "debug/trace_event_impl_constants.cc",
-    "debug/trace_event_win.cc",
-    "deferred_sequenced_task_runner.cc",
-    "deferred_sequenced_task_runner.h",
-    "environment.cc",
-    "environment.h",
-    "file_descriptor_posix.h",
-    "file_util.cc",
-    "file_util.h",
-    "file_util_android.cc",
-    "file_util_linux.cc",
-    "file_util_mac.mm",
-    "file_util_posix.cc",
-    "file_util_win.cc",
-    "file_version_info.h",
-    "file_version_info_mac.h",
-    "file_version_info_mac.mm",
-    "file_version_info_win.cc",
-    "file_version_info_win.h",
-    "files/dir_reader_fallback.h",
-    "files/dir_reader_linux.h",
-    "files/dir_reader_posix.h",
-    "files/file_enumerator.cc",
-    "files/file_enumerator.h",
-    "files/file_enumerator_posix.cc",
-    "files/file_enumerator_win.cc",
-    "files/file_path.cc",
-    "files/file_path.h",
-    "files/file_path_constants.cc",
-    "files/file_path_watcher.cc",
-    "files/file_path_watcher.h",
-    "files/file_path_watcher_kqueue.cc",
-    "files/file_path_watcher_linux.cc",
-    "files/file_path_watcher_stub.cc",
-    "files/file_path_watcher_win.cc",
-    "files/file_util_proxy.cc",
-    "files/file_util_proxy.h",
-    "files/important_file_writer.h",
-    "files/important_file_writer.cc",
-    "files/memory_mapped_file.cc",
-    "files/memory_mapped_file.h",
-    "files/memory_mapped_file_posix.cc",
-    "files/memory_mapped_file_win.cc",
-    "files/scoped_temp_dir.cc",
-    "files/scoped_temp_dir.h",
-    "float_util.h",
-    "format_macros.h",
-    "gtest_prod_util.h",
-    "guid.cc",
-    "guid.h",
-    "guid_posix.cc",
-    "guid_win.cc",
-    "hash.cc",
-    "hash.h",
-    "id_map.h",
-    "ini_parser.cc",
-    "ini_parser.h",
-    "ios/device_util.h",
-    "ios/device_util.mm",
-    "ios/ios_util.h",
-    "ios/ios_util.mm",
-    "ios/scoped_critical_action.h",
-    "ios/scoped_critical_action.mm",
-    "json/json_file_value_serializer.cc",
-    "json/json_file_value_serializer.h",
-    "json/json_parser.cc",
-    "json/json_parser.h",
-    "json/json_reader.cc",
-    "json/json_reader.h",
-    "json/json_string_value_serializer.cc",
-    "json/json_string_value_serializer.h",
-    "json/json_value_converter.h",
-    "json/json_writer.cc",
-    "json/json_writer.h",
-    "json/string_escape.cc",
-    "json/string_escape.h",
-    "lazy_instance.cc",
-    "lazy_instance.h",
-    "location.cc",
-    "location.h",
-    "logging.cc",
-    "logging.h",
-    "logging_win.cc",
-    "logging_win.h",
-    "mac/authorization_util.h",
-    "mac/authorization_util.mm",
-    "mac/bind_objc_block.h",
-    "mac/bundle_locations.h",
-    "mac/bundle_locations.mm",
-    "mac/cocoa_protocols.h",
-    "mac/foundation_util.h",
-    "mac/foundation_util.mm",
-    "mac/launch_services_util.cc",
-    "mac/launch_services_util.h",
-    "mac/launchd.cc",
-    "mac/launchd.h",
-    "mac/libdispatch_task_runner.cc",
-    "mac/libdispatch_task_runner.h",
-    "mac/mac_logging.h",
-    "mac/mac_logging.cc",
-    "mac/mac_util.h",
-    "mac/mac_util.mm",
-    "mac/objc_property_releaser.h",
-    "mac/objc_property_releaser.mm",
-    "mac/os_crash_dumps.cc",
-    "mac/os_crash_dumps.h",
-    "mac/scoped_aedesc.h",
-    "mac/scoped_authorizationref.h",
-    "mac/scoped_block.h",
-    "mac/scoped_cftyperef.h",
-    "mac/scoped_ioobject.h",
-    "mac/scoped_ioplugininterface.h",
-    "mac/scoped_launch_data.h",
-    "mac/scoped_mach_port.cc",
-    "mac/scoped_mach_port.h",
-    "mac/scoped_nsautorelease_pool.h",
-    "mac/scoped_nsautorelease_pool.mm",
-    "mac/scoped_nsexception_enabler.h",
-    "mac/scoped_nsexception_enabler.mm",
-    "mac/scoped_nsobject.h",
-    "mac/scoped_sending_event.h",
-    "mac/scoped_sending_event.mm",
-    "mac/sdk_forward_declarations.h",
-    "memory/aligned_memory.cc",
-    "memory/aligned_memory.h",
-    "memory/discardable_memory.cc",
-    "memory/discardable_memory.h",
-    "memory/discardable_memory_android.cc",
-    "memory/discardable_memory_mac.cc",
-    "memory/linked_ptr.h",
-    "memory/manual_constructor.h",
-    "memory/memory_pressure_listener.cc",
-    "memory/memory_pressure_listener.h",
-    "memory/raw_scoped_refptr_mismatch_checker.h",
-    "memory/ref_counted.cc",
-    "memory/ref_counted.h",
-    "memory/ref_counted_delete_on_message_loop.h",
-    "memory/ref_counted_memory.cc",
-    "memory/ref_counted_memory.h",
-    "memory/scoped_handle.h",
-    "memory/scoped_open_process.h",
-    "memory/scoped_policy.h",
-    "memory/scoped_ptr.h",
-    "memory/scoped_vector.h",
-    "memory/shared_memory.h",
-    "memory/shared_memory_android.cc",
-    "memory/shared_memory_nacl.cc",
-    "memory/shared_memory_posix.cc",
-    "memory/shared_memory_win.cc",
-    "memory/singleton.cc",
-    "memory/singleton.h",
-    "memory/weak_ptr.cc",
-    "memory/weak_ptr.h",
-    "message_loop/message_loop.cc",
-    "message_loop/message_loop.h",
-    "message_loop/message_loop_proxy.cc",
-    "message_loop/message_loop_proxy.h",
-    "message_loop/message_loop_proxy_impl.cc",
-    "message_loop/message_loop_proxy_impl.h",
-    "message_loop/message_pump.cc",
-    "message_loop/message_pump.h",
-    "message_loop/message_pump_android.cc",
-    "message_loop/message_pump_android.h",
-    "message_loop/message_pump_default.cc",
-    "message_loop/message_pump_default.h",
-    "message_loop/message_pump_ozone.cc",
-    "message_loop/message_pump_ozone.h",
-    "message_loop/message_pump_win.cc",
-    "message_loop/message_pump_win.h",
-    "metrics/sample_map.cc",
-    "metrics/sample_map.h",
-    "metrics/sample_vector.cc",
-    "metrics/sample_vector.h",
-    "metrics/bucket_ranges.cc",
-    "metrics/bucket_ranges.h",
-    "metrics/histogram.cc",
-    "metrics/histogram.h",
-    "metrics/histogram_base.cc",
-    "metrics/histogram_base.h",
-    "metrics/histogram_flattener.h",
-    "metrics/histogram_samples.cc",
-    "metrics/histogram_samples.h",
-    "metrics/histogram_snapshot_manager.cc",
-    "metrics/histogram_snapshot_manager.h",
-    "metrics/sparse_histogram.cc",
-    "metrics/sparse_histogram.h",
-    "metrics/statistics_recorder.cc",
-    "metrics/statistics_recorder.h",
-    "metrics/stats_counters.cc",
-    "metrics/stats_counters.h",
-    "metrics/stats_table.cc",
-    "metrics/stats_table.h",
-    "move.h",
-    "native_library.h",
-    "native_library_mac.mm",
-    "native_library_posix.cc",
-    "native_library_win.cc",
-    "nix/mime_util_xdg.cc",
-    "nix/mime_util_xdg.h",
-    "nix/xdg_util.cc",
-    "nix/xdg_util.h",
-    "observer_list.h",
-    "observer_list_threadsafe.h",
-    "os_compat_android.cc",
-    "os_compat_android.h",
-    "os_compat_nacl.cc",
-    "os_compat_nacl.h",
-    "path_service.cc",
-    "path_service.h",
-    "pending_task.cc",
-    "pending_task.h",
-    "pickle.cc",
-    "pickle.h",
-    "platform_file.cc",
-    "platform_file.h",
-    "platform_file_posix.cc",
-    "platform_file_win.cc",
-    "port.h",
-    "posix/eintr_wrapper.h",
-    "posix/global_descriptors.cc",
-    "posix/global_descriptors.h",
-    "posix/unix_domain_socket_linux.cc",
-    "posix/unix_domain_socket_linux.h",
-    "power_monitor/power_monitor.cc",
-    "power_monitor/power_monitor.h",
-    "power_monitor/power_monitor_android.cc",
-    "power_monitor/power_monitor_android.h",
-    "power_monitor/power_monitor_ios.mm",
-    "power_monitor/power_monitor_mac.mm",
-    "power_monitor/power_monitor_posix.cc",
-    "power_monitor/power_monitor_win.cc",
-    "power_monitor/power_observer.h",
-    "process.h",
-    "process_info.h",
-    "process_info_mac.cc",
-    "process_info_win.cc",
-    "process_linux.cc",
-    "process_posix.cc",
-    "process_util.h",
-    "process_win.cc",
-    "process/internal_linux.cc",
-    "process/internal_linux.h",
-    "process/kill.cc",
-    "process/kill.h",
-    "process/kill_mac.cc",
-    "process/kill_posix.cc",
-    "process/kill_win.cc",
-    "process/launch.h",
-    "process/launch_ios.cc",
-    "process/launch_mac.cc",
-    "process/launch_posix.cc",
-    "process/launch_win.cc",
-    "process/memory.h",
-    "process/memory_linux.cc",
-    "process/memory_mac.mm",
-    "process/memory_win.cc",
-    "process/process_handle_freebsd.cc",
-    "process/process_handle_linux.cc",
-    "process/process_handle_mac.cc",
-    "process/process_handle_openbsd.cc",
-    "process/process_handle_posix.cc",
-    "process/process_handle_win.cc",
-    "process/process_iterator.cc",
-    "process/process_iterator.h",
-    "process/process_iterator_freebsd.cc",
-    "process/process_iterator_linux.cc",
-    "process/process_iterator_mac.cc",
-    "process/process_iterator_openbsd.cc",
-    "process/process_iterator_win.cc",
-    "process/process_metrics.h",
-    "process/process_metrics_freebsd.cc",
-    "process/process_metrics_ios.cc",
-    "process/process_metrics_linux.cc",
-    "process/process_metrics_mac.cc",
-    "process/process_metrics_openbsd.cc",
-    "process/process_metrics_posix.cc",
-    "process/process_metrics_win.cc",
-    "profiler/scoped_profile.cc",
-    "profiler/scoped_profile.h",
-    "profiler/alternate_timer.cc",
-    "profiler/alternate_timer.h",
-    "profiler/tracked_time.cc",
-    "profiler/tracked_time.h",
-    "rand_util.cc",
-    "rand_util.h",
-    "rand_util_nacl.cc",
-    "rand_util_posix.cc",
-    "rand_util_win.cc",
-    "run_loop.cc",
-    "run_loop.h",
-    "safe_numerics.h",
-    "safe_strerror_posix.cc",
-    "safe_strerror_posix.h",
-    "scoped_native_library.cc",
-    "scoped_native_library.h",
-    "sequence_checker.h",
-    "sequence_checker_impl.cc",
-    "sequence_checker_impl.h",
-    "sequenced_task_runner.cc",
-    "sequenced_task_runner.h",
-    "sequenced_task_runner_helpers.h",
-    "sha1.h",
-    "sha1_portable.cc",
-    "sha1_win.cc",
-    "single_thread_task_runner.h",
-    "stl_util.h",
-    "strings/latin1_string_conversions.cc",
-    "strings/latin1_string_conversions.h",
-    "strings/nullable_string16.cc",
-    "strings/nullable_string16.h",
-    "strings/string16.cc",
-    "strings/string16.h",
-    "strings/string_number_conversions.cc",
-    "strings/string_split.cc",
-    "strings/string_split.h",
-    "strings/string_number_conversions.h",
-    "strings/string_piece.cc",
-    "strings/string_piece.h",
-    "strings/string_tokenizer.h",
-    "strings/string_util.cc",
-    "strings/string_util.h",
-    "strings/string_util_constants.cc",
-    "strings/string_util_posix.h",
-    "strings/string_util_win.h",
-    "strings/stringize_macros.h",
-    "strings/stringprintf.cc",
-    "strings/stringprintf.h",
-    "strings/sys_string_conversions.h",
-    "strings/sys_string_conversions_mac.mm",
-    "strings/sys_string_conversions_posix.cc",
-    "strings/sys_string_conversions_win.cc",
-    "strings/utf_offset_string_conversions.cc",
-    "strings/utf_offset_string_conversions.h",
-    "strings/utf_string_conversion_utils.cc",
-    "strings/utf_string_conversion_utils.h",
-    "strings/utf_string_conversions.cc",
-    "strings/utf_string_conversions.h",
-    "supports_user_data.cc",
-    "supports_user_data.h",
-    "synchronization/cancellation_flag.cc",
-    "synchronization/cancellation_flag.h",
-    "synchronization/condition_variable.h",
-    "synchronization/condition_variable_posix.cc",
-    "synchronization/condition_variable_win.cc",
-    "synchronization/lock.cc",
-    "synchronization/lock.h",
-    "synchronization/lock_impl.h",
-    "synchronization/lock_impl_posix.cc",
-    "synchronization/lock_impl_win.cc",
-    "synchronization/spin_wait.h",
-    "synchronization/waitable_event.h",
-    "synchronization/waitable_event_posix.cc",
-    "synchronization/waitable_event_watcher.h",
-    "synchronization/waitable_event_watcher_posix.cc",
-    "synchronization/waitable_event_watcher_win.cc",
-    "synchronization/waitable_event_win.cc",
-    "system_monitor/system_monitor.cc",
-    "system_monitor/system_monitor.h",
-    "sys_byteorder.h",
-    "sys_info.cc",
-    "sys_info.h",
-    "sys_info_android.cc",
-    "sys_info_chromeos.cc",
-    "sys_info_freebsd.cc",
-    "sys_info_ios.mm",
-    "sys_info_linux.cc",
-    "sys_info_mac.cc",
-    "sys_info_openbsd.cc",
-    "sys_info_posix.cc",
-    "sys_info_win.cc",
-    "task_runner.cc",
-    "task_runner.h",
-    "task_runner_util.h",
-    "template_util.h",
-    "thread_task_runner_handle.cc",
-    "thread_task_runner_handle.h",
-    "threading/non_thread_safe.h",
-    "threading/non_thread_safe_impl.cc",
-    "threading/non_thread_safe_impl.h",
-    "threading/platform_thread.h",
-    "threading/platform_thread_android.cc",
-    "threading/platform_thread_linux.cc",
-    "threading/platform_thread_mac.mm",
-    "threading/platform_thread_posix.cc",
-    "threading/platform_thread_win.cc",
-    "threading/post_task_and_reply_impl.cc",
-    "threading/post_task_and_reply_impl.h",
-    "threading/sequenced_worker_pool.cc",
-    "threading/sequenced_worker_pool.h",
-    "threading/simple_thread.cc",
-    "threading/simple_thread.h",
-    "threading/thread.cc",
-    "threading/thread.h",
-    "threading/thread_checker.h",
-    "threading/thread_checker_impl.cc",
-    "threading/thread_checker_impl.h",
-    "threading/thread_collision_warner.cc",
-    "threading/thread_collision_warner.h",
-    "threading/thread_id_name_manager.cc",
-    "threading/thread_id_name_manager.h",
-    "threading/thread_local.h",
-    "threading/thread_local_posix.cc",
-    "threading/thread_local_storage.h",
-    "threading/thread_local_storage_posix.cc",
-    "threading/thread_local_storage_win.cc",
-    "threading/thread_local_win.cc",
-    "threading/thread_restrictions.h",
-    "threading/thread_restrictions.cc",
-    "threading/watchdog.cc",
-    "threading/watchdog.h",
-    "threading/worker_pool.h",
-    "threading/worker_pool.cc",
-    "threading/worker_pool_posix.cc",
-    "threading/worker_pool_posix.h",
-    "threading/worker_pool_win.cc",
-    "time/clock.cc",
-    "time/clock.h",
-    "time/default_clock.cc",
-    "time/default_clock.h",
-    "time/default_tick_clock.cc",
-    "time/default_tick_clock.h",
-    "time/tick_clock.cc",
-    "time/tick_clock.h",
-    "time/time.cc",
-    "time/time.h",
-    "time/time_mac.cc",
-    "time/time_posix.cc",
-    "time/time_win.cc",
-    "timer/hi_res_timer_manager_posix.cc",
-    "timer/hi_res_timer_manager_win.cc",
-    "timer/hi_res_timer_manager.h",
-    "timer/timer.cc",
-    "timer/timer.h",
-    "tracked_objects.cc",
-    "tracked_objects.h",
-    "tracking_info.cc",
-    "tracking_info.h",
-    "tuple.h",
-    "values.cc",
-    "values.h",
-    "value_conversions.cc",
-    "value_conversions.h",
-    "version.cc",
-    "version.h",
-    "vlog.cc",
-    "vlog.h",
-    "win/enum_variant.cc",
-    "win/enum_variant.h",
-    "win/event_trace_consumer.h",
-    "win/event_trace_controller.cc",
-    "win/event_trace_controller.h",
-    "win/event_trace_provider.cc",
-    "win/event_trace_provider.h",
-    "win/i18n.cc",
-    "win/i18n.h",
-    "win/iat_patch_function.cc",
-    "win/iat_patch_function.h",
-    "win/iunknown_impl.cc",
-    "win/iunknown_impl.h",
-    "win/message_window.cc",
-    "win/message_window.h",
-    "win/metro.cc",
-    "win/metro.h",
-    "win/object_watcher.cc",
-    "win/object_watcher.h",
-    "win/registry.cc",
-    "win/registry.h",
-    "win/resource_util.cc",
-    "win/resource_util.h",
-    "win/sampling_profiler.cc",
-    "win/sampling_profiler.h",
-    "win/scoped_bstr.cc",
-    "win/scoped_bstr.h",
-    "win/scoped_co_mem.h",
-    "win/scoped_com_initializer.h",
-    "win/scoped_comptr.h",
-    "win/scoped_gdi_object.h",
-    "win/scoped_handle.cc",
-    "win/scoped_handle.h",
-    "win/scoped_hdc.h",
-    "win/scoped_hglobal.h",
-    "win/scoped_process_information.cc",
-    "win/scoped_process_information.h",
-    "win/scoped_propvariant.h",
-    "win/scoped_select_object.h",
-    "win/scoped_variant.cc",
-    "win/scoped_variant.h",
-    "win/shortcut.cc",
-    "win/shortcut.h",
-    "win/startup_information.cc",
-    "win/startup_information.h",
-    "win/text_services_message_filter.cc",
-    "win/text_services_message_filter.h",
-    "win/win_util.cc",
-    "win/win_util.h",
-    "win/windows_version.cc",
-    "win/windows_version.h",
-    "win/wrapped_window_proc.cc",
-    "win/wrapped_window_proc.h",
-  ]
-
-  # TODO(brettw) I don't understand the conditions this file is used.
-  sources -= "files/file_path_watcher_stub.cc"
-
-  sources -= [
-    # TODO(brettw) ozone
-    "message_loop/message_pump_ozone.cc",
-    "message_loop/message_pump_ozone.h",
-
-    "process/process_handle_freebsd.cc",
-    "process/process_handle_openbsd.cc",
-    "process/process_iterator_freebsd.cc",
-    "process/process_iterator_openbsd.cc",
-    "process/process_metrics_freebsd.cc",
-    "process/process_metrics_openbsd.cc",
-    "sys_info_freebsd.cc",
-    "sys_info_openbsd.cc",
-  ]
-
-  if (!is_chromeos) {
-    sources -= [
-      "sys_info_chromeos.cc",
-    ]
-  }
-  if (!is_mac) {
-    sources -= "files/file_path_watcher_kqueue.cc"
-  }
-
-  # Remove nacl stuff.
-  if (!is_nacl) {
-    sources -= [
-      "os_compat_nacl.cc",
-      "os_compat_nacl.h",
-      "rand_util_nacl.cc",
-      "third_party/nspr/prcpucfg_nacl.h",
-      "memory/shared_memory_nacl.cc",
-    ]
-  }
-
-  # Windows stuff.
-  if (is_win && !is_nacl) {
-    sources -= [
-      "strings/string16.cc",
-      # Not using sha1_win.cc because it may have caused a
-      # regression to page cycler moz.
-      "sha1_win.cc",
-    ]
-
-    if (is_component_build) {
-      sources -= "debug/debug_on_start_win.cc"
-    }
-  }
-
-  # Remove non-Mac Unix stuff.
-  if (!is_posix || is_mac) {
-    sources -= [
-      "nix/mime_util_xdg.cc",
-      "nix/mime_util_xdg.h",
-      "nix/xdg_util.cc",
-      "nix/xdg_util.h",
-    ]
-  }
-
-  defines = [
-    "BASE_IMPLEMENTATION",
-  ]
-
-  deps = [
-    ":base_static",
-    "//base/allocator:allocator_extension_thunks",
-    "//third_party/modp_b64",
-    "//base/third_party/dynamic_annotations",
-  ]
-}
-
-# This is the subset of files from base that should not be used with a dynamic
-# library. Note that this library cannot depend on base because base depends on
-# base_static.
-static_library("base_static") {
-  sources = [
-    "base_switches.cc",
-    "base_switches.h",
-    "win/pe_image.cc",
-    "win/pe_image.h",
-  ]
-}
-
-component("base_i18n") {
-  sources = [
-    "i18n/base_i18n_export.h",
-    "i18n/bidi_line_iterator.cc",
-    "i18n/bidi_line_iterator.h",
-    "i18n/break_iterator.cc",
-    "i18n/break_iterator.h",
-    "i18n/char_iterator.cc",
-    "i18n/char_iterator.h",
-    "i18n/case_conversion.cc",
-    "i18n/case_conversion.h",
-    "i18n/file_util_icu.cc",
-    "i18n/file_util_icu.h",
-    "i18n/icu_encoding_detection.cc",
-    "i18n/icu_encoding_detection.h",
-    "i18n/icu_string_conversions.cc",
-    "i18n/icu_string_conversions.h",
-    "i18n/icu_util.cc",
-    "i18n/icu_util.h",
-    "i18n/number_formatting.cc",
-    "i18n/number_formatting.h",
-    "i18n/rtl.cc",
-    "i18n/rtl.h",
-    "i18n/string_compare.cc",
-    "i18n/string_compare.h",
-    "i18n/string_search.cc",
-    "i18n/string_search.h",
-    "i18n/time_formatting.cc",
-    "i18n/time_formatting.h",
-  ]
-  deps = [
-    ":base",
-    "//base/third_party/dynamic_annotations",
-    "//third_party/icu:icui18n",
-    "//third_party/icu:icuuc",
-  ]
-  defines = [
-    "BASE_I18N_IMPLEMENTATION",
-  ]
-  #'conditions': [
-  #  ['toolkit_uses_gtk==1', {
-  #    'deps': [
-  #      # i18n/rtl.cc uses gtk
-  #      '../build/linux/system.gyp:gtk',
-  #    ],
-  #  }],
-  #  ['OS == "win"', {
-  #    # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
-  #    'msvs_disabled_warnings': [
-  #      4267,
-  #    ],
-  #  }],
-  #],
-  #'export_dependent_settings': [
-  #  'base',
-  #],
-  #'variables': {
-  #  'enable_wexit_time_destructors': 1,
-  #  'optimize': 'max',
-  #},
-}
-
-static_library("test_support_base") {
-  sources = [
-    "perftimer.cc",
-    "test/expectations/expectation.cc",
-    "test/expectations/expectation.h",
-    "test/expectations/parser.cc",
-    "test/expectations/parser.h",
-    "test/mock_chrome_application_mac.h",
-    "test/mock_chrome_application_mac.mm",
-    "test/mock_devices_changed_observer.cc",
-    "test/mock_devices_changed_observer.h",
-    "test/mock_time_provider.cc",
-    "test/mock_time_provider.h",
-    "test/multiprocess_test.cc",
-    "test/multiprocess_test.h",
-    "test/multiprocess_test_android.cc",
-    "test/null_task_runner.cc",
-    "test/null_task_runner.h",
-    "test/perf_test_suite.cc",
-    "test/perf_test_suite.h",
-    "test/scoped_locale.cc",
-    "test/scoped_locale.h",
-    "test/scoped_path_override.cc",
-    "test/scoped_path_override.h",
-    "test/sequenced_task_runner_test_template.cc",
-    "test/sequenced_task_runner_test_template.h",
-    "test/sequenced_worker_pool_owner.cc",
-    "test/sequenced_worker_pool_owner.h",
-    "test/simple_test_clock.cc",
-    "test/simple_test_clock.h",
-    "test/simple_test_tick_clock.cc",
-    "test/simple_test_tick_clock.h",
-    "test/task_runner_test_template.cc",
-    "test/task_runner_test_template.h",
-    "test/test_file_util.h",
-    "test/test_file_util_linux.cc",
-    "test/test_file_util_mac.cc",
-    "test/test_file_util_posix.cc",
-    "test/test_file_util_win.cc",
-    "test/test_listener_ios.h",
-    "test/test_listener_ios.mm",
-    "test/test_pending_task.cc",
-    "test/test_pending_task.h",
-    "test/test_process_killer_win.cc",
-    "test/test_process_killer_win.h",
-    "test/test_reg_util_win.cc",
-    "test/test_reg_util_win.h",
-    "test/test_shortcut_win.cc",
-    "test/test_shortcut_win.h",
-    "test/test_simple_task_runner.cc",
-    "test/test_simple_task_runner.h",
-    "test/test_suite.cc",
-    "test/test_suite.h",
-    "test/test_support_android.cc",
-    "test/test_support_android.h",
-    "test/test_support_ios.h",
-    "test/test_support_ios.mm",
-    "test/test_switches.cc",
-    "test/test_switches.h",
-    "test/test_timeouts.cc",
-    "test/test_timeouts.h",
-    "test/thread_test_helper.cc",
-    "test/thread_test_helper.h",
-    "test/trace_event_analyzer.cc",
-    "test/trace_event_analyzer.h",
-    "test/values_test_util.cc",
-    "test/values_test_util.h",
-  ]
-  deps = [
-    ":base",
-    ":base_static",
-    ":base_i18n",
-    "//testing:gmock",
-    "//testing:gtest",
-  ]
-
-  if (!is_posix) {
-    sources -= [
-      "test/scoped_locale.cc",
-      "test/scoped_locale.h",
-    ]
-  }
-  if (is_ios) {
-    # Pull in specific Mac files for iOS (which have been filtered out
-    # by file name rules).
-    {  # Temporarily override the assignment filter in a new scope.
-      set_sources_assignment_filter([])
-      sources += "test/test_file_util_mac.cc"
-    }
-  }
-  #if (!is_bsd) {
-  #  sources -= "test/test_file_util_linux.cc"
-  #}
-  #if (use_gtk) {
-  #  deps += "/build/linux/system:gtk"
-  #}
-  #export_dependent_settings [
-  #  'base',
-  #]
-}
-
-config("perf_test_config") {
-  defines = [ "PERF_TEST" ]
-}
-
-static_library("test_support_perf") {
-  sources = [
-    "perftimer.cc",
-    "test/run_all_perftests.cc",
-  ]
-  deps = [
-    ":base",
-    "//testing:gtest",
-  ]
-
-  direct_dependent_configs = [ ":perf_test_config" ]
-
-  #if (toolkit_uses_gtk) {
-  #  deps += "/build/linux/system:gtk",
-  #}
-}
-
-static_library("run_all_unittests") {
-  sources = [
-    "test/run_all_unittests.cc",
-  ]
-  deps = [
-    ":test_support_base",
-  ]
-}
diff --git a/tools/gn/secondary/base/allocator/BUILD.gn b/tools/gn/secondary/base/allocator/BUILD.gn
deleted file mode 100644
index bbcfe655c648..000000000000
--- a/tools/gn/secondary/base/allocator/BUILD.gn
+++ /dev/null
@@ -1,6 +0,0 @@
-static_library("allocator_extension_thunks") {
-  sources = [
-    "allocator_extension_thunks.cc",
-    "allocator_extension_thunks.h",
-  ]
-}
diff --git a/tools/gn/secondary/base/third_party/dynamic_annotations/BUILD.gn b/tools/gn/secondary/base/third_party/dynamic_annotations/BUILD.gn
deleted file mode 100644
index e3939c355424..000000000000
--- a/tools/gn/secondary/base/third_party/dynamic_annotations/BUILD.gn
+++ /dev/null
@@ -1,7 +0,0 @@
-static_library("dynamic_annotations") {
-  sources = [
-    "dynamic_annotations.c",
-    "dynamic_annotations.h",
-    "../valgrind/valgrind.h",
-  ]
-}
diff --git a/tools/gn/secondary/build/config/BUILD.gn b/tools/gn/secondary/build/config/BUILD.gn
deleted file mode 100644
index 74c57af161c2..000000000000
--- a/tools/gn/secondary/build/config/BUILD.gn
+++ /dev/null
@@ -1,52 +0,0 @@
-config("my_msvs") {
-  includes = [ "../.." ]
-  cflags = [
-       "/Od", "/WX", "/Zi", "/Gy", "/GS", "/RTC1", "/EHsc",
-  ]
-  defines = [
-      "CHROMIUM_BUILD",
-      "TOOLKIT_VIEWS=1",
-      "USE_LIBJPEG_TURBO=1",
-      "ENABLE_ONE_CLICK_SIGNIN",
-      "ENABLE_REMOTING=1",
-      "ENABLE_WEBRTC=1",
-      "ENABLE_CONFIGURATION_POLICY",
-      "ENABLE_INPUT_SPEECH",
-      "ENABLE_NOTIFICATIONS",
-      "ENABLE_GPU=1",
-      "ENABLE_EGLIMAGE=1",
-      "ENABLE_TASK_MANAGER=1",
-      "ENABLE_EXTENSIONS=1",
-      "ENABLE_PLUGIN_INSTALLATION=1",
-      "ENABLE_PLUGINS=1",
-      "ENABLE_SESSION_SERVICE=1",
-      "ENABLE_THEMES=1",
-      "ENABLE_AUTOFILL_DIALOG=1",
-      "ENABLE_BACKGROUND=1",
-      "ENABLE_AUTOMATION=1",
-      "ENABLE_GOOGLE_NOW=1",
-      "ENABLE_LANGUAGE_DETECTION=1",
-      "ENABLE_PRINTING=1",
-      "ENABLE_CAPTIVE_PORTAL_DETECTION=1",
-      "ENABLE_APP_LIST=1",
-      "ENABLE_MESSAGE_CENTER=1",
-      "ENABLE_SETTINGS_APP=1",
-      "ENABLE_MANAGED_USERS=1",
-  ]
-}
-
-config("feature_flags") {
-  #defines = 
-}
-
-config("debug") {
-  defines = [
-    "_DEBUG",
-    "DYNAMIC_ANNOTATIONS_ENABLED=1",
-    "WTF_USE_DYNAMIC_ANNOTATIONS=1",
-  ]
-}
-
-config("release") {
-
-}
diff --git a/tools/gn/secondary/build/config/BUILDCONFIG.gn b/tools/gn/secondary/build/config/BUILDCONFIG.gn
deleted file mode 100644
index 0245597adc94..000000000000
--- a/tools/gn/secondary/build/config/BUILDCONFIG.gn
+++ /dev/null
@@ -1,187 +0,0 @@
-# =============================================================================
-# BUILD FLAGS
-# =============================================================================
-#
-# This block lists input arguments to the build, along with their default
-# values. GN requires listing them explicitly so it can validate input and have
-# a central place to manage the build flags.
-#
-# If a value is specified on the command line, it will overwrite the defaults
-# given here, otherwise the default will be injected into the root scope.
-#
-# KEEP IN ALPHABETICAL ORDER and write a good description for everything.
-# Use "is_*" names for intrinsic platform descriptions and build modes, and
-# "use_*" names for optional features libraries, and configurations.
-declare_args() {
-  is_component_build = 1
-  is_chromeos = 0
-  is_debug = 1
-  use_ash = 0
-  use_aura = 0
-  use_ozone = 0
-}
-
-# =============================================================================
-# SOURCES FILTERS
-# =============================================================================
-#
-# These patterns filter out platform-specific files when assigning to the
-# sources variable. The magic variable |sources_assignment_filter| is applied
-# to each assignment or appending to the sources variable and matches are
-# automatcally removed.
-#
-# We define lists of filters for each platform for all builds so they can
-# be used by individual targets if necessary (a target can always change
-# sources_assignment_filter on itself if it needs something more specific).
-#
-# Note that the patterns are NOT regular expressions. Only "*" and "\b" (path
-# boundary = end of string or slash) are supported, and the entire string
-# muct match the pattern (so you need "*.cc" to match all .cc files, for
-# example).
-
-windows_sources_filters = [
-  "*_win.cc",
-  "*_win.h",
-  "*_win_unittest.cc",
-  "*\bwin/*",
-]
-mac_sources_filters = [
-  "*_mac.h",
-  "*_mac.cc",
-  "*_mac.mm",
-  "*_mac_unittest.h",
-  "*_mac_unittest.cc",
-  "*_mac_unittest.mm",
-  "*\bmac/*",
-  "*_cocoa.h",
-  "*_cocoa.cc",
-  "*_cocoa.mm",
-  "*_cocoa_unittest.h",
-  "*_cocoa_unittest.cc",
-  "*_cocoa_unittest.mm",
-  "*\bcocoa/*",
-]
-ios_sources_filters = [
-  "*_ios.h",
-  "*_ios.cc",
-  "*_ios.mm",
-  "*_ios_unittest.h",
-  "*_ios_unittest.cc",
-  "*_ios_unittest.mm",
-  "*\bios/*",
-]
-objective_c_sources_filters = [
-  "*.mm",
-]
-linux_sources_filters = [
-  "*_linux.h",
-  "*_linux.cc",
-  "*_linux_unittest.h",
-  "*_linux_unittest.cc",
-  "*\blinux/*",
-]
-android_sources_filters = [
-  "*_android.h",
-  "*_android.cc",
-  "*_android_unittest.h",
-  "*_android_unittest.cc",
-  "*\bandroid/*",
-]
-posix_sources_filters = [
-  "*_posix.h",
-  "*_posix.cc",
-  "*_posix_unittest.h",
-  "*_posix_unittest.cc",
-  "*\bposix/*",
-]
-
-# Construct the full list of sources we're using for this platform.
-sources_assignment_filter = []
-if (is_win) {
-  sources_assignment_filter += posix_sources_filters
-} else {
-  sources_assignment_filter += windows_sources_filters
-}
-if (!is_mac) {
-  sources_assignment_filter += mac_sources_filters
-}
-if (!is_ios) {
-  sources_assignment_filter += ios_sources_filters
-}
-if (!is_mac && !is_ios) {
-  sources_assignment_filter += objective_c_sources_filters
-}
-if (!is_linux) {
-  sources_assignment_filter += linux_sources_filters
-}
-if (!is_android) {
-  sources_assignment_filter += android_sources_filters
-}
-
-# This is the actual set.
-set_sources_assignment_filter(sources_assignment_filter)
-
-# =============================================================================
-# SYSTEM CONFIG
-# =============================================================================
-
-is_nacl = 0
-
-# =============================================================================
-# BUILD OPTIONS
-# =============================================================================
-
-if (is_component_build) {
-  component_mode = "shared_library"
-} else {
-  component_mode = "static_library"
-}
-
-# =============================================================================
-# TARGET DEFAULTS
-# =============================================================================
-#
-# Set up the default configuration for every build target of the given type.
-# The values configured here will be automatically set on the scope of the
-# corresponding target. Target definitions can add or remove to the settings
-# here as needed.
-
-# Holds all configs used for making native executables and libraries, to avoid
-# duplication in each target below.
-native_compiler_configs = [
-  "//build/config:my_msvs",  # TODO(brettw) eraseme
-
-  "//build/config/compiler:chromium_code",
-  "//build/config/compiler:disable_annoying_warnings",
-  "//build/config/compiler:no_rtti",
-  "//build/config/compiler:runtime_library",
-]
-if (is_win) {
-  native_compiler_configs += "//build/config/win:sdk"
-}
-
-if (is_debug) {
-  native_compiler_configs += "//build/config:debug"
-} else {
-  native_compiler_configs += "//build/config::release"
-}
-
-set_defaults("executable") {
-  configs = native_compiler_configs
-}
-
-set_defaults("static_library") {
-  configs = native_compiler_configs
-}
-
-set_defaults("shared_library") {
-  configs = native_compiler_configs
-}
-
-# ==============================================================================
-# TOOLCHAIN SETUP
-# ==============================================================================
-
-if (is_win) {
-  set_default_toolchain("//build/config/win:32")
-}
diff --git a/tools/gn/secondary/build/config/compiler/BUILD.gn b/tools/gn/secondary/build/config/compiler/BUILD.gn
deleted file mode 100644
index 04878281ab15..000000000000
--- a/tools/gn/secondary/build/config/compiler/BUILD.gn
+++ /dev/null
@@ -1,134 +0,0 @@
-# Copyright (c) 2013 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-# runtime_library -------------------------------------------------------------
-#
-# Sets the runtime library and associated options.
-#
-# We don't bother making multiple versions that are toggle-able since there
-# is more than one axis of control (which makes it complicated) and there's
-# no practical reason for anybody to change this since the CRT must agree.
-
-config("runtime_library") {
-  if (is_component_build) {
-    # Component mode: dynamic CRT.
-    defines = [ "COMPONENT_BUILD" ]
-    if (is_win) {
-      # Since the library is shared, it requires exceptions or will give errors
-      # about things not matching, so keep exceptions on.
-      if (is_debug) {
-        cflags = [ "/MDd" ]
-      } else {
-        cflags = [ "/MD" ]
-      }
-    }
-  } else {
-    # Static CRT.
-    if (is_win) {
-      # We don't use exceptions, and when we link statically we can just get
-      # rid of them entirely.
-      defines = [ "_HAS_EXCEPTIONS=0" ]
-      if (is_debug) {
-        cflags = [ "/MTd" ]
-      } else {
-        cflags = [ "/MT" ]
-      }
-    }
-  }
-
-  if (is_win) {
-    defines += [
-      "__STD_C",
-      "__STDC_CONSTANT_MACROS",
-      "__STDC_FORMAT_MACROS",
-      "_CRT_RAND_S",
-      "_CRT_SECURE_NO_DEPRECATE",
-      "_SCL_SECURE_NO_DEPRECATE",
-      "_UNICODE",
-      "UNICODE", 
-    ]
-  }
-}
-
-# chromium_code ---------------------------------------------------------------
-#
-# Toggles between higher and lower warnings for code that is (or isn't)
-# part of Chromium.
-
-config("chromium_code") {
-  if (is_win) {
-    cflags = [
-      "/W4",  # Warning level 4.
-    ]
-  }
-}
-config("no_chromium_code") {
-  if (is_win) {
-    cflags = [
-      "/W3",  # Warning level 3.
-      "/wd4800",  # Disable warning when forcing value to bool.
-    ]
-    defines = [
-      "_CRT_NONSTDC_NO_WARNINGS",
-      "_CRT_NONSTDC_NO_DEPRECATE",
-    ]
-  }
-}
-
-# rtti ------------------------------------------------------------------------
-#
-# Allows turning Run-Time Type Identification on or off.
-
-config("rtti") {
-  if (is_win) {
-    cflags = [ "/GR" ]
-  }
-}
-config("no_rtti") {
-  if (is_win) {
-    cflags = [ "/GR-" ]
-  }
-}
-
-# Warnings ---------------------------------------------------------------------
-
-config("disable_annoying_warnings") {
-  if (is_win) {
-    # Please keep ordered and add names if you add more.
-    cflags = [
-      "/wd4018",  # Comparing signed and unsigned values.
-      "/wd4100",  # Unreferenced formal function parameter.
-      "/wd4121",  # Alignment of a member was sensitive to packing.
-      "/wd4125",  # Decimal digit terminates octal escape sequence.
-      "/wd4127",  # Conditional expression is constant.
-      "/wd4130",  # Logical operation on address of string constant.
-      # TODO(brettw) is this necessary? If so, it should probably be on whoever
-      # is silly enough to be doing this rather than globally.
-      #"/wd4131",  # Function uses old-style declarator.
-      "/wd4189",  # A variable was declared and initialized but never used.
-      "/wd4201",  # Nonstandard extension used: nameless struct/union.
-      "/wd4238",  # Nonstandard extension used: class rvalue used as lvalue.
-      "/wd4244",  # Conversion: possible loss of data.
-      "/wd4245",  # Conversion: signed/unsigned mismatch,
-      "/wd4251",  # Class needs to have dll-interface.
-      "/wd4310",  # Cast truncates constant value.
-      "/wd4351",  # Elements of array will be default initialized.
-      "/wd4355",  # 'this' used in base member initializer list.
-      "/wd4396",  # Inline friend template thing.
-      "/wd4428",  # Universal character name encountered in source.
-      "/wd4481",  # Nonstandard extension: override specifier.
-      "/wd4503",  # Decorated name length exceeded, name was truncated.
-      "/wd4505",  # Unreferenced local function has been removed.
-      "/wd4510",  # Default constructor could not be generated.
-      "/wd4512",  # Assignment operator could not be generated.
-      "/wd4530",  # Exception handler used, but unwind semantics not enabled.
-      "/wd4610",  # Class can never be instantiated, constructor required.
-      "/wd4611",  # C++ object destruction and 'catch'.
-      "/wd4701",  # Potentially uninitialized local variable name used.
-      "/wd4702",  # Unreachable code.
-      "/wd4706",  # Assignment within conditional expression.
-      "/wd4819",  # Character not in the current code page.
-    ]
-  }
-}
diff --git a/tools/gn/secondary/build/config/win/BUILD.gn b/tools/gn/secondary/build/config/win/BUILD.gn
deleted file mode 100644
index 955504a5ef39..000000000000
--- a/tools/gn/secondary/build/config/win/BUILD.gn
+++ /dev/null
@@ -1,184 +0,0 @@
-# Copyright (c) 2013 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-# Should only be running on Windows.
-assert(is_win)
-
-# Setup the Visual Studio state.
-#
-# Its argument is the location to write the environment files.
-# It will write "environment.x86" and "environment.x64" to this directory,
-# and return a list to us.
-#
-# The list contains the include path as its only element. (I'm expecting to
-# add more so it's currently a list inside a list.)
-msvc_config = [["foo"]]
-#exec_script("get_msvc_config.py",
-                     #     [relative_root_output_dir],
-                     #     "value")
-
-# 32-bit toolchain -------------------------------------------------------------
-
-toolchain("32") {
-  tool("cc") {
-    command = "ninja -t msvc -e \$arch -- cl.exe /nologo /showIncludes /FC @\$out.rsp /c \$in /Fo\$out /Fd\$pdbname"
-    description = "CC \$out"
-    rspfile = "\$out.rsp"
-    rspfile_content = "\$defines \$includes \$cflags \$cflags_c"
-    deps = "msvc"
-  }
-  tool("cxx") {
-    command = "ninja -t msvc -e \$arch -- cl.exe /nologo /showIncludes /FC @\$out.rsp /c \$in /Fo\$out /Fd\$pdbname"
-    description = "CXX \$out"
-    rspfile = "\$out.rsp"
-    rspfile_content = "\$defines \$includes \$cflags \$cflags_cc"
-    deps = "msvc"
-  }
-  #tool("idl") {
-  #  command = $python_path gyp-win-tool midl-wrapper \$arch \$outdir \$tlb \$h \$dlldata \$iid \$
-  #      \$proxy \$in \$idlflags
-  #  description = IDL \$in
-  #}
-  #tool("rc") {
-  #  command = $python_path gyp-win-tool rc-wrapper \$arch rc.exe \$defines \$includes \$rcflags \$
-  #      /fo\$out \$in
-  #  description = RC \$in
-  #}
-  #tool("asm") {
-  #  command = $python_path gyp-win-tool asm-wrapper \$arch ml.exe \$defines \$includes /c /Fo \$
-  #      \$out \$in
-  #  description = ASM \$in
-  #}
-  tool("alink") {
-    command = "$python_path gyp-win-tool link-wrapper \$arch lib.exe /nologo /ignore:4221 /OUT:\$out @\$out.rsp"
-    description = "LIB \$out"
-    rspfile = "\$out.rsp"
-    rspfile_content = "\$in_newline \$libflags"
-  }
-  #tool("solink_embed_inc") {
-  #  command = cmd /c $python_path gyp-win-tool link-wrapper \$arch link.exe /nologo \$implibflag \$
-  #      /DLL /OUT:\$dll /PDB:\$dll.pdb @\$dll.rsp && $python_path gyp-win-tool \$
-  #      manifest-wrapper \$arch cmd /c if exist \$dll.manifest del \$dll.manifest && \$
-  #      $python_path gyp-win-tool manifest-wrapper \$arch mt.exe -nologo -manifest \$manifests \$
-  #      -out:\$dll.manifest && $python_path gyp-win-tool manifest-to-rc \$arch \$dll.manifest \$
-  #      \$dll.manifest.rc 2 && $python_path gyp-win-tool rc-wrapper \$arch rc.exe \$
-  #      \$dll.manifest.rc && $python_path gyp-win-tool link-wrapper \$arch link.exe /nologo \$
-  #      \$implibflag /DLL /OUT:\$dll /PDB:\$dll.pdb @\$dll.rsp \$dll.manifest.res
-  #  description = LINK_EMBED_INC(DLL) \$dll
-  #  restat = 1
-  #  rspfile = \$dll.rsp
-  #  rspfile_content = \$libs \$in_newline \$ldflags
-  #}
-  #tool("solink_module_embed_inc") {
-  #  command = cmd /c $python_path gyp-win-tool link-wrapper \$arch link.exe /nologo \$implibflag \$
-  #      /DLL /OUT:\$dll /PDB:\$dll.pdb @\$dll.rsp && $python_path gyp-win-tool \$
-  #      manifest-wrapper \$arch cmd /c if exist \$dll.manifest del \$dll.manifest && \$
-  #      $python_path gyp-win-tool manifest-wrapper \$arch mt.exe -nologo -manifest \$manifests \$
-  #      -out:\$dll.manifest && $python_path gyp-win-tool manifest-to-rc \$arch \$dll.manifest \$
-  #      \$dll.manifest.rc 2 && $python_path gyp-win-tool rc-wrapper \$arch rc.exe \$
-  #      \$dll.manifest.rc && $python_path gyp-win-tool link-wrapper \$arch link.exe /nologo \$
-  #      \$implibflag /DLL /OUT:\$dll /PDB:\$dll.pdb @\$dll.rsp \$dll.manifest.res
-  #  description = LINK_EMBED_INC(DLL) \$dll
-  #  restat = 1
-  #  rspfile = \$dll.rsp
-  #  rspfile_content = \$libs \$in_newline \$ldflags
-  #}
-  #rule link_embed_inc
-  #  command = cmd /c $python_path gyp-win-tool link-wrapper \$arch link.exe /nologo /OUT:\$out \$
-  #      /PDB:\$out.pdb @\$out.rsp && $python_path gyp-win-tool manifest-wrapper \$arch cmd /c \$
-  #      if exist \$out.manifest del \$out.manifest && $python_path gyp-win-tool \$
-  #      manifest-wrapper \$arch mt.exe -nologo -manifest \$manifests -out:\$out.manifest && \$
-  #      $python_path gyp-win-tool manifest-to-rc \$arch \$out.manifest \$out.manifest.rc 1 && \$
-  #      $python_path gyp-win-tool rc-wrapper \$arch rc.exe \$out.manifest.rc && \$
-  #      $python_path gyp-win-tool link-wrapper \$arch link.exe /nologo /OUT:\$out /PDB:\$out.pdb \$
-  #      @\$out.rsp \$out.manifest.res
-  #  description = LINK_EMBED_INC \$out
-  #  rspfile = \$out.rsp
-  #  rspfile_content = \$in_newline \$libs \$ldflags
-  #rule solink_embed
-  #  command = cmd /c $python_path gyp-win-tool link-wrapper \$arch link.exe /nologo \$implibflag \$
-  #      /DLL /OUT:\$dll /PDB:\$dll.pdb @\$dll.rsp && $python_path gyp-win-tool \$
-  #      manifest-wrapper \$arch cmd /c if exist \$dll.manifest del \$dll.manifest && \$
-  #      $python_path gyp-win-tool manifest-wrapper \$arch mt.exe -nologo -manifest \$manifests \$
-  #      -outputresource:\$dll;2
-  #  description = LINK_EMBED(DLL) \$dll
-  #  restat = 1
-  #  rspfile = \$dll.rsp
-  #  rspfile_content = \$libs \$in_newline \$ldflags
-  #rule solink_module_embed
-  #  command = cmd /c $python_path gyp-win-tool link-wrapper \$arch link.exe /nologo \$implibflag \$
-  #      /DLL /OUT:\$dll /PDB:\$dll.pdb @\$dll.rsp && $python_path gyp-win-tool \$
-  #      manifest-wrapper \$arch cmd /c if exist \$dll.manifest del \$dll.manifest && \$
-  #      $python_path gyp-win-tool manifest-wrapper \$arch mt.exe -nologo -manifest \$manifests \$
-  #      -outputresource:\$dll;2
-  #  description = LINK_EMBED(DLL) \$dll
-  #  restat = 1
-  #  rspfile = \$dll.rsp
-  #  rspfile_content = \$libs \$in_newline \$ldflags
-  #rule link_embed
-  #  command = cmd /c $python_path gyp-win-tool link-wrapper \$arch link.exe /nologo /OUT:\$out \$
-  #      /PDB:\$out.pdb @\$out.rsp && $python_path gyp-win-tool manifest-wrapper \$arch cmd /c \$
-  #      if exist \$out.manifest del \$out.manifest && $python_path gyp-win-tool \$
-  #      manifest-wrapper \$arch mt.exe -nologo -manifest \$manifests -outputresource:\$out;1
-  #  description = LINK_EMBED \$out
-  #  rspfile = \$out.rsp
-  #  rspfile_content = \$in_newline \$libs \$ldflags
-  tool("solink") {
-    command = "cmd /c $python_path gyp-win-tool link-wrapper \$arch link.exe /nologo \$implibflag /DLL /OUT:\$dll /PDB:\$dll.pdb @\$dll.rsp && $python_path gyp-win-tool manifest-wrapper \$arch cmd /c if exist \$dll.manifest del \$dll.manifest && $python_path gyp-win-tool manifest-wrapper \$arch mt.exe -nologo -manifest \$manifests -out:\$dll.manifest"
-    description = "LINK(DLL) \$dll"
-    restat = "1"
-    rspfile = "\$dll.rsp"
-    rspfile_content = "\$libs \$in_newline \$ldflags"
-  }
-  tool("solink_module") {
-    command = "cmd /c $python_path gyp-win-tool link-wrapper \$arch link.exe /nologo \$implibflag /DLL /OUT:\$dll /PDB:\$dll.pdb @\$dll.rsp && $python_path gyp-win-tool manifest-wrapper \$arch cmd /c if exist \$dll.manifest del \$dll.manifest && $python_path gyp-win-tool manifest-wrapper \$arch mt.exe -nologo -manifest \$manifests -out:\$dll.manifet"
-    description = "LINK(DLL) \$dll"
-    restat = "1"
-    rspfile = "\$dll.rsp"
-    rspfile_content = "\$libs \$in_newline \$ldflags"
-  }
-  tool("link") {
-    command = "cmd /c $python_path gyp-win-tool link-wrapper \$arch link.exe /nologo /OUT:\$out /PDB:\$out.pdb @\$out.rsp && $python_path gyp-win-tool manifest-wrapper \$arch cmd /c if exist \$out.manifest del \$out.manifest && $python_path gyp-win-tool manifest-wrapper \$arch mt.exe -nologo -manifest \$manifests -out:\$out.manifest"
-    description = "LINK \$out"
-    rspfile = "\$out.rsp"
-    rspfile_content = "\$in_newline \$libs \$ldflags"
-  }
-  tool("stamp") {
-    command = "$python_path gyp-win-tool stamp \$out"
-    description = "STAMP \$out"
-  }
-  tool("copy") {
-    command = "$python_path gyp-win-tool recursive-mirror \$in \$out"
-    description = "COPY \$in \$out"
-  }
-}
-
-# 64-bit toolchain -------------------------------------------------------------
-
-toolchain("64") {
-}
-
-# SDK setup --------------------------------------------------------------------
-
-config("sdk") {
-  # The include path is the stuff returned by the script plus out own WTL
-  # checkout.
-  # TODO(brettw) should adding WTL be at this level or should it be more on
-  # a per-project basis?
-  includes = msvc_config[0] + "../../third_party/wtl/include"
-
-  defines = [
-    "_ATL_NO_OPENGL",
-    "_SECURE_ATL",
-    "_WIN32_WINNT=0x0602",
-    "_WINDOWS",
-    "CERT_CHAIN_PARA_HAS_EXTRA_FIELDS",
-    "NOMINMAX",
-    "NTDDI_VERSION=0x06020000",
-    "PSAPI_VERSION=1",
-    "WIN32",
-    "WIN32_LEAN_AND_MEAN",
-    "WINVER=0x0602",
-  ]
-}
diff --git a/tools/gn/secondary/build/config/win/get_msvc_config.py b/tools/gn/secondary/build/config/win/get_msvc_config.py
deleted file mode 100644
index 01380cd89546..000000000000
--- a/tools/gn/secondary/build/config/win/get_msvc_config.py
+++ /dev/null
@@ -1,77 +0,0 @@
-# Copyright (c) 2013 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-# This file returns the MSVC config used by the Windows build.
-# It's a bit hardcoded right now. I suspect we want to build this functionality
-# into GN itself in the future.
-
-import sys
-
-# This script expects one parameter: the path to the root output directory.
-
-# TODO(brettw): do escaping.
-def FormatStringForGN(x):
-  return '"' + x + '"'
-
-def PrintListOfStrings(x):
-  print '['
-  for i in x:
-    print FormatStringForGN(i) + ', '
-  print ']'
-
-# GN wants system-absolutepaths to begin in slashes.
-sdk_root = '/C:\\Program Files (x86)\\Windows Kits\\8.0\\'
-vs_root = '/C:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\'
-
-def GetIncludes():
-  return [
-    sdk_root + 'Include\\shared',
-    sdk_root + 'Include\\um',
-    sdk_root + 'Include\\winrt',
-    vs_root + 'VC\\atlmfc\\include'
-  ]
-
-def _FormatAsEnvironmentBlock(envvar_dict):
-  """Format as an 'environment block' directly suitable for CreateProcess.
-  Briefly this is a list of key=value\0, terminated by an additional \0. See
-  CreateProcess documentation for more details."""
-  block = ''
-  nul = '\0'
-  for key, value in envvar_dict.iteritems():
-    block += key + '=' + value + nul
-  block += nul
-  return block
-
-def WriteEnvFile(file_path, values):
-  f = open(file_path, "w")
-  f.write(_FormatAsEnvironmentBlock(values))
-
-includes = GetIncludes()
-
-# Write the environment files.
-WriteEnvFile(sys.argv[1] + '\\environment.x86',
-  { 'TMP': 'C:\\Users\\brettw\\AppData\\Local\\Temp',
-    'SYSTEMROOT': 'C:\\Windows',
-    'TEMP': 'C:\\Users\\brettw\\AppData\\Local\\Temp',
-    'LIB': 'c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\LIB;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\ATLMFC\\LIB;C:\\Program Files (x86)\\Microsoft SDKs\\Windows\\v7.0A\\lib;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\LIB;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\ATLMFC\\LIB;C:\\Program Files (x86)\\Microsoft SDKs\\Windows\\v7.0A\\lib;',
-    'LIBPATH': 'C:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319;C:\\Windows\\Microsoft.NET\\Framework\\v3.5;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\LIB;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\ATLMFC\\LIB;C:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319;C:\\Windows\\Microsoft.NET\\Framework\\v3.5;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\LIB;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\ATLMFC\\LIB;',
-    'PATH': 'C:\\apps\\depot_tools\\python_bin;c:\\Program Files (x86)\\Microsoft F#\\v4.0\\;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VSTSDB\\Deploy;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\Common7\\IDE\\;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\BIN;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\Common7\\Tools;C:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319;C:\\Windows\\Microsoft.NET\\Framework\\v3.5;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\VCPackages;C:\\Program Files (x86)\\HTML Help Workshop;C:\\Program Files (x86)\\HTML Help Workshop;C:\\Program Files (x86)\\Microsoft SDKs\\Windows\\v7.0A\\bin\\NETFX 4.0 Tools;C:\\Program Files (x86)\\Microsoft SDKs\\Windows\\v7.0A\\bin;C:\\apps\\depot_tools\\python_bin;C:\\apps\\depot_tools\\;C:\\apps\\depot_tools\\;C:\\apps\\depot_tools\\;c:\\Program Files (x86)\\Microsoft F#\\v4.0\\;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VSTSDB\\Deploy;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\Common7\\IDE\\;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\BIN;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\Common7\\Tools;C:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319;C:\\Windows\\Microsoft.NET\\Framework\\v3.5;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\VCPackages;C:\\Program Files (x86)\\HTML Help Workshop;C:\\Program Files (x86)\\Microsoft SDKs\\Windows\\v7.0A\\bin\\NETFX 4.0 Tools;C:\\Program Files (x86)\\Microsoft SDKs\\Windows\\v7.0A\\bin;C:\\Windows\\system32;C:\\Windows;C:\\Windows\\System32\\Wbem;C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\;C:\\windows\\corpam;C:\\python_26_amd64\\files;C:\\Windows\\ccmsetup;c:\\Program Files (x86)\\Microsoft SQL Server\\100\\Tools\\Binn\\;c:\\Program Files\\Microsoft SQL Server\\100\\Tools\\Binn\\;c:\\Program Files\\Microsoft SQL Server\\100\\DTS\\Binn\\;c:\\cygwin\\bin;C:\\apps\\;C:\\apps\\depot_tools;C:\\Program Files (x86)\\Windows Kits\\8.0\\Windows Performance Toolkit\\;C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\;C:\\Program Files (x86)\\Google\\Cert Installer;C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\;C:\\Program Files (x86)\\Google\\google_appengine\\',
-    'PATHEXT': '=.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC',
-    'INCLUDE': 'c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\INCLUDE;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\ATLMFC\\INCLUDE;C:\\Program Files (x86)\\Microsoft SDKs\\Windows\\v7.0A\\include;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\INCLUDE;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\ATLMFC\\INCLUDE;C:\\Program Files (x86)\\Microsoft SDKs\\Windows\\v7.0A\\include;'})
-
-WriteEnvFile(sys.argv[1] + '\\environment.x64',
-  { 'TMP': 'C:\\Users\\brettw\\AppData\\Local\\Temp',
-    'SYSTEMROOT': 'C:\\Windows',
-    'TEMP': 'C:\\Users\\brettw\\AppData\\Local\\Temp',
-    'LIB': 'c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\LIB\\amd64;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\ATLMFC\\LIB\\amd64;C:\\Program Files (x86)\\Microsoft SDKs\\Windows\\v7.0A\\lib\\x64;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\LIB;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\ATLMFC\\LIB;C:\\Program Files (x86)\\Microsoft SDKs\\Windows\\v7.0A\\lib;',
-    'LIBPATH': 'C:\\Windows\\Microsoft.NET\\Framework64\\v4.0.30319;C:\\Windows\\Microsoft.NET\\Framework64\\v3.5;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\LIB\\amd64;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\ATLMFC\\LIB\\amd64;C:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319;C:\\Windows\\Microsoft.NET\\Framework\\v3.5;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\LIB;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\ATLMFC\\LIB;',
-    'PATH': 'C:\\apps\\depot_tools\\python_bin;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\BIN\\amd64;C:\\Windows\\Microsoft.NET\\Framework64\\v4.0.30319;C:\\Windows\\Microsoft.NET\\Framework64\\v3.5;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\VCPackages;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\Common7\\IDE;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\Common7\\Tools;C:\\Program Files (x86)\\HTML Help Workshop;C:\\Program Files (x86)\\HTML Help Workshop;C:\\Program Files (x86)\\Microsoft SDKs\\Windows\\v7.0A\\bin\\NETFX 4.0 Tools\\x64;C:\\Program Files (x86)\\Microsoft SDKs\\Windows\\v7.0A\\bin\\x64;C:\\Program Files (x86)\\Microsoft SDKs\\Windows\\v7.0A\\bin;C:\\apps\\depot_tools\\python_bin;C:\\apps\\depot_tools\\;C:\\apps\\depot_tools\\;C:\\apps\\depot_tools\\;c:\\Program Files (x86)\\Microsoft F#\\v4.0\\;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VSTSDB\\Deploy;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\Common7\\IDE\\;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\BIN;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\Common7\\Tools;C:\\Windows\\Microsoft.NET\\Framework\\v4.0.30319;C:\\Windows\\Microsoft.NET\\Framework\\v3.5;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\VCPackages;C:\\Program Files (x86)\\HTML Help Workshop;C:\\Program Files (x86)\\Microsoft SDKs\\Windows\\v7.0A\\bin\\NETFX 4.0 Tools;C:\\Program Files (x86)\\Microsoft SDKs\\Windows\\v7.0A\\bin;C:\\Windows\\system32;C:\\Windows;C:\\Windows\\System32\\Wbem;C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\;C:\\windows\\corpam;C:\\python_26_amd64\\files;C:\\Windows\\ccmsetup;c:\\Program Files (x86)\\Microsoft SQL Server\\100\\Tools\\Binn\\;c:\\Program Files\\Microsoft SQL Server\\100\\Tools\\Binn\\;c:\\Program Files\\Microsoft SQL Server\\100\\DTS\\Binn\\;c:\\cygwin\\bin;C:\\apps\\;C:\\apps\\depot_tools;C:\\Program Files (x86)\\Windows Kits\\8.0\\Windows Performance Toolkit\\;C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\;C:\\Program Files (x86)\\Google\\Cert Installer;C:\\Windows\\System32\\WindowsPowerShell\\v1.0\\;C:\\Program Files (x86)\\Google\\google_appengine\\',
-    'PATHEXT': '.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC',
-    'INCLUDE': 'c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\INCLUDE;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\ATLMFC\\INCLUDE;C:\\Program Files (x86)\\Microsoft SDKs\\Windows\\v7.0A\\include;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\INCLUDE;c:\\Program Files (x86)\\Microsoft Visual Studio 10.0\\VC\\ATLMFC\\INCLUDE;C:\\Program Files (x86)\\Microsoft SDKs\\Windows\\v7.0A\\include;'})
-
-# Return the includes and such.
-print '['
-PrintListOfStrings(includes)
-print ']'
-
diff --git a/tools/gn/secondary/build/config/win/get_msvc_config_real.py b/tools/gn/secondary/build/config/win/get_msvc_config_real.py
deleted file mode 100644
index a209d7ff8a13..000000000000
--- a/tools/gn/secondary/build/config/win/get_msvc_config_real.py
+++ /dev/null
@@ -1,575 +0,0 @@
-# Copyright (c) 2013 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-# This file copies the logic from GYP to find the MSVC configuration. It's not
-# currently used because it is too slow. We will probably build this
-# functionality into the C++ code in the future.
-
-"""Handle version information related to Visual Stuio."""
-
-import errno
-import os
-import re
-import subprocess
-import sys
-
-class VisualStudioVersion(object):
-  """Information regarding a version of Visual Studio."""
-
-  def __init__(self, short_name, description,
-               solution_version, project_version, flat_sln, uses_vcxproj,
-               path, sdk_based, default_toolset=None):
-    self.short_name = short_name
-    self.description = description
-    self.solution_version = solution_version
-    self.project_version = project_version
-    self.flat_sln = flat_sln
-    self.uses_vcxproj = uses_vcxproj
-    self.path = path
-    self.sdk_based = sdk_based
-    self.default_toolset = default_toolset
-
-  def ShortName(self):
-    return self.short_name
-
-  def Description(self):
-    """Get the full description of the version."""
-    return self.description
-
-  def SolutionVersion(self):
-    """Get the version number of the sln files."""
-    return self.solution_version
-
-  def ProjectVersion(self):
-    """Get the version number of the vcproj or vcxproj files."""
-    return self.project_version
-
-  def FlatSolution(self):
-    return self.flat_sln
-
-  def UsesVcxproj(self):
-    """Returns true if this version uses a vcxproj file."""
-    return self.uses_vcxproj
-
-  def ProjectExtension(self):
-    """Returns the file extension for the project."""
-    return self.uses_vcxproj and '.vcxproj' or '.vcproj'
-
-  def Path(self):
-    """Returns the path to Visual Studio installation."""
-    return self.path
-
-  def ToolPath(self, tool):
-    """Returns the path to a given compiler tool. """
-    return os.path.normpath(os.path.join(self.path, "VC/bin", tool))
-
-  def DefaultToolset(self):
-    """Returns the msbuild toolset version that will be used in the absence
-    of a user override."""
-    return self.default_toolset
-
-  def SetupScript(self, target_arch):
-    """Returns a command (with arguments) to be used to set up the
-    environment."""
-    # Check if we are running in the SDK command line environment and use
-    # the setup script from the SDK if so. |target_arch| should be either
-    # 'x86' or 'x64'.
-    assert target_arch in ('x86', 'x64')
-    sdk_dir = os.environ.get('WindowsSDKDir')
-    if self.sdk_based and sdk_dir:
-      return [os.path.normpath(os.path.join(sdk_dir, 'Bin/SetEnv.Cmd')),
-              '/' + target_arch]
-    else:
-      # We don't use VC/vcvarsall.bat for x86 because vcvarsall calls
-      # vcvars32, which it can only find if VS??COMNTOOLS is set, which it
-      # isn't always.
-      if target_arch == 'x86':
-        return [os.path.normpath(
-          os.path.join(self.path, 'Common7/Tools/vsvars32.bat'))]
-      else:
-        assert target_arch == 'x64'
-        arg = 'x86_amd64'
-        if (os.environ.get('PROCESSOR_ARCHITECTURE') == 'AMD64' or
-            os.environ.get('PROCESSOR_ARCHITEW6432') == 'AMD64'):
-          # Use the 64-on-64 compiler if we can.
-          arg = 'amd64'
-        return [os.path.normpath(
-            os.path.join(self.path, 'VC/vcvarsall.bat')), arg]
-
-
-def _RegistryQueryBase(sysdir, key, value):
-  """Use reg.exe to read a particular key.
-
-  While ideally we might use the win32 module, we would like gyp to be
-  python neutral, so for instance cygwin python lacks this module.
-
-  Arguments:
-    sysdir: The system subdirectory to attempt to launch reg.exe from.
-    key: The registry key to read from.
-    value: The particular value to read.
-  Return:
-    stdout from reg.exe, or None for failure.
-  """
-  # Skip if not on Windows or Python Win32 setup issue
-  if sys.platform not in ('win32', 'cygwin'):
-    return None
-  # Setup params to pass to and attempt to launch reg.exe
-  cmd = [os.path.join(os.environ.get('WINDIR', ''), sysdir, 'reg.exe'),
-         'query', key]
-  if value:
-    cmd.extend(['/v', value])
-  p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
-  # Obtain the stdout from reg.exe, reading to the end so p.returncode is valid
-  # Note that the error text may be in [1] in some cases
-  text = p.communicate()[0]
-  # Check return code from reg.exe; officially 0==success and 1==error
-  if p.returncode:
-    return None
-  return text
-
-
-def _RegistryQuery(key, value=None):
-  """Use reg.exe to read a particular key through _RegistryQueryBase.
-
-  First tries to launch from %WinDir%\Sysnative to avoid WoW64 redirection. If
-  that fails, it falls back to System32.  Sysnative is available on Vista and
-  up and available on Windows Server 2003 and XP through KB patch 942589. Note
-  that Sysnative will always fail if using 64-bit python due to it being a
-  virtual directory and System32 will work correctly in the first place.
-
-  KB 942589 - http://support.microsoft.com/kb/942589/en-us.
-
-  Arguments:
-    key: The registry key.
-    value: The particular registry value to read (optional).
-  Return:
-    stdout from reg.exe, or None for failure.
-  """
-  text = None
-  try:
-    text = _RegistryQueryBase('Sysnative', key, value)
-  except OSError, e:
-    if e.errno == errno.ENOENT:
-      text = _RegistryQueryBase('System32', key, value)
-    else:
-      raise
-  return text
-
-
-def _RegistryGetValue(key, value):
-  """Use reg.exe to obtain the value of a registry key.
-
-  Args:
-    key: The registry key.
-    value: The particular registry value to read.
-  Return:
-    contents of the registry key's value, or None on failure.
-  """
-  text = _RegistryQuery(key, value)
-  if not text:
-    return None
-  # Extract value.
-  match = re.search(r'REG_\w+\s+([^\r]+)\r\n', text)
-  if not match:
-    return None
-  return match.group(1)
-
-
-def _RegistryKeyExists(key):
-  """Use reg.exe to see if a key exists.
-
-  Args:
-    key: The registry key to check.
-  Return:
-    True if the key exists
-  """
-  if not _RegistryQuery(key):
-    return False
-  return True
-
-
-def _CreateVersion(name, path, sdk_based=False):
-  """Sets up MSVS project generation.
-
-  Setup is based off the GYP_MSVS_VERSION environment variable or whatever is
-  autodetected if GYP_MSVS_VERSION is not explicitly specified. If a version is
-  passed in that doesn't match a value in versions python will throw a error.
-  """
-  if path:
-    path = os.path.normpath(path)
-  versions = {
-      '2013': VisualStudioVersion('2013',
-                                  'Visual Studio 2013',
-                                  solution_version='13.00',
-                                  project_version='4.0',
-                                  flat_sln=False,
-                                  uses_vcxproj=True,
-                                  path=path,
-                                  sdk_based=sdk_based,
-                                  default_toolset='v110'),
-      '2013e': VisualStudioVersion('2013e',
-                                   'Visual Studio 2013',
-                                   solution_version='13.00',
-                                   project_version='4.0',
-                                   flat_sln=True,
-                                   uses_vcxproj=True,
-                                   path=path,
-                                   sdk_based=sdk_based,
-                                   default_toolset='v110'),
-      '2012': VisualStudioVersion('2012',
-                                  'Visual Studio 2012',
-                                  solution_version='12.00',
-                                  project_version='4.0',
-                                  flat_sln=False,
-                                  uses_vcxproj=True,
-                                  path=path,
-                                  sdk_based=sdk_based,
-                                  default_toolset='v110'),
-      '2012e': VisualStudioVersion('2012e',
-                                   'Visual Studio 2012',
-                                   solution_version='12.00',
-                                   project_version='4.0',
-                                   flat_sln=True,
-                                   uses_vcxproj=True,
-                                   path=path,
-                                   sdk_based=sdk_based,
-                                   default_toolset='v110'),
-      '2010': VisualStudioVersion('2010',
-                                  'Visual Studio 2010',
-                                  solution_version='11.00',
-                                  project_version='4.0',
-                                  flat_sln=False,
-                                  uses_vcxproj=True,
-                                  path=path,
-                                  sdk_based=sdk_based),
-      '2010e': VisualStudioVersion('2010e',
-                                   'Visual Studio 2010',
-                                   solution_version='11.00',
-                                   project_version='4.0',
-                                   flat_sln=True,
-                                   uses_vcxproj=True,
-                                   path=path,
-                                   sdk_based=sdk_based),
-      '2008': VisualStudioVersion('2008',
-                                  'Visual Studio 2008',
-                                  solution_version='10.00',
-                                  project_version='9.00',
-                                  flat_sln=False,
-                                  uses_vcxproj=False,
-                                  path=path,
-                                  sdk_based=sdk_based),
-      '2008e': VisualStudioVersion('2008e',
-                                   'Visual Studio 2008',
-                                   solution_version='10.00',
-                                   project_version='9.00',
-                                   flat_sln=True,
-                                   uses_vcxproj=False,
-                                   path=path,
-                                   sdk_based=sdk_based),
-      '2005': VisualStudioVersion('2005',
-                                  'Visual Studio 2005',
-                                  solution_version='9.00',
-                                  project_version='8.00',
-                                  flat_sln=False,
-                                  uses_vcxproj=False,
-                                  path=path,
-                                  sdk_based=sdk_based),
-      '2005e': VisualStudioVersion('2005e',
-                                   'Visual Studio 2005',
-                                   solution_version='9.00',
-                                   project_version='8.00',
-                                   flat_sln=True,
-                                   uses_vcxproj=False,
-                                   path=path,
-                                   sdk_based=sdk_based),
-  }
-  return versions[str(name)]
-
-
-def _ConvertToCygpath(path):
-  """Convert to cygwin path if we are using cygwin."""
-  if sys.platform == 'cygwin':
-    p = subprocess.Popen(['cygpath', path], stdout=subprocess.PIPE)
-    path = p.communicate()[0].strip()
-  return path
-
-
-def _DetectVisualStudioVersions(versions_to_check, force_express):
-  """Collect the list of installed visual studio versions.
-
-  Returns:
-    A list of visual studio versions installed in descending order of
-    usage preference.
-    Base this on the registry and a quick check if devenv.exe exists.
-    Only versions 8-10 are considered.
-    Possibilities are:
-      2005(e) - Visual Studio 2005 (8)
-      2008(e) - Visual Studio 2008 (9)
-      2010(e) - Visual Studio 2010 (10)
-      2012(e) - Visual Studio 2012 (11)
-      2013(e) - Visual Studio 2013 (11)
-    Where (e) is e for express editions of MSVS and blank otherwise.
-  """
-  version_to_year = {
-      '8.0': '2005',
-      '9.0': '2008',
-      '10.0': '2010',
-      '11.0': '2012',
-      '12.0': '2013',
-  }
-  versions = []
-  for version in versions_to_check:
-    # Old method of searching for which VS version is installed
-    # We don't use the 2010-encouraged-way because we also want to get the
-    # path to the binaries, which it doesn't offer.
-    keys = [r'HKLM\Software\Microsoft\VisualStudio\%s' % version,
-            r'HKLM\Software\Wow6432Node\Microsoft\VisualStudio\%s' % version,
-            r'HKLM\Software\Microsoft\VCExpress\%s' % version,
-            r'HKLM\Software\Wow6432Node\Microsoft\VCExpress\%s' % version]
-    for index in range(len(keys)):
-      path = _RegistryGetValue(keys[index], 'InstallDir')
-      if not path:
-        continue
-      path = _ConvertToCygpath(path)
-      # Check for full.
-      full_path = os.path.join(path, 'devenv.exe')
-      express_path = os.path.join(path, 'vcexpress.exe')
-      if not force_express and os.path.exists(full_path):
-        # Add this one.
-        versions.append(_CreateVersion(version_to_year[version],
-            os.path.join(path, '..', '..')))
-      # Check for express.
-      elif os.path.exists(express_path):
-        # Add this one.
-        versions.append(_CreateVersion(version_to_year[version] + 'e',
-            os.path.join(path, '..', '..')))
-
-    # The old method above does not work when only SDK is installed.
-    keys = [r'HKLM\Software\Microsoft\VisualStudio\SxS\VC7',
-            r'HKLM\Software\Wow6432Node\Microsoft\VisualStudio\SxS\VC7']
-    for index in range(len(keys)):
-      path = _RegistryGetValue(keys[index], version)
-      if not path:
-        continue
-      path = _ConvertToCygpath(path)
-      versions.append(_CreateVersion(version_to_year[version] + 'e',
-          os.path.join(path, '..'), sdk_based=True))
-
-  return versions
-
-
-def SelectVisualStudioVersion(version='auto'):
-  """Select which version of Visual Studio projects to generate.
-
-  Arguments:
-    version: Hook to allow caller to force a particular version (vs auto).
-  Returns:
-    An object representing a visual studio project format version.
-  """
-  # In auto mode, check environment variable for override.
-  if version == 'auto':
-    version = os.environ.get('GYP_MSVS_VERSION', 'auto')
-  version_map = {
-    'auto': ('10.0', '9.0', '8.0', '11.0'),
-    '2005': ('8.0',),
-    '2005e': ('8.0',),
-    '2008': ('9.0',),
-    '2008e': ('9.0',),
-    '2010': ('10.0',),
-    '2010e': ('10.0',),
-    '2012': ('11.0',),
-    '2012e': ('11.0',),
-    '2013': ('12.0',),
-    '2013e': ('12.0',),
-  }
-  override_path = os.environ.get('GYP_MSVS_OVERRIDE_PATH')
-  if override_path:
-    msvs_version = os.environ.get('GYP_MSVS_VERSION')
-    if not msvs_version or 'e' not in msvs_version:
-      raise ValueError('GYP_MSVS_OVERRIDE_PATH requires GYP_MSVS_VERSION to be '
-                       'set to an "e" version (e.g. 2010e)')
-    return _CreateVersion(msvs_version, override_path, sdk_based=True)
-  version = str(version)
-  versions = _DetectVisualStudioVersions(version_map[version], 'e' in version)
-  if not versions:
-    if version == 'auto':
-      # Default to 2005 if we couldn't find anything
-      return _CreateVersion('2005', None)
-    else:
-      return _CreateVersion(version, None)
-  return versions[0]
-
-def GenerateEnvironmentFiles(toplevel_build_dir, generator_flags, open_out):
-  """It's not sufficient to have the absolute path to the compiler, linker,
-  etc. on Windows, as those tools rely on .dlls being in the PATH. We also
-  need to support both x86 and x64 compilers within the same build (to support
-  msvs_target_platform hackery). Different architectures require a different
-  compiler binary, and different supporting environment variables (INCLUDE,
-  LIB, LIBPATH). So, we extract the environment here, wrap all invocations
-  of compiler tools (cl, link, lib, rc, midl, etc.) via win_tool.py which
-  sets up the environment, and then we do not prefix the compiler with
-  an absolute path, instead preferring something like "cl.exe" in the rule
-  which will then run whichever the environment setup has put in the path.
-  When the following procedure to generate environment files does not
-  meet your requirement (e.g. for custom toolchains), you can pass
-  "-G ninja_use_custom_environment_files" to the gyp to suppress file
-  generation and use custom environment files prepared by yourself."""
-  archs = ('x86', 'x64')
-  if generator_flags.get('ninja_use_custom_environment_files', 0):
-    cl_paths = {}
-    for arch in archs:
-      cl_paths[arch] = 'cl.exe'
-    return cl_paths
-  vs = GetVSVersion(generator_flags)
-  cl_paths = {}
-  for arch in archs:
-    # Extract environment variables for subprocesses.
-    args = vs.SetupScript(arch)
-    args.extend(('&&', 'set'))
-    popen = subprocess.Popen(
-        args, shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
-    variables, _ = popen.communicate()
-    env = _ExtractImportantEnvironment(variables)
-    env_block = _FormatAsEnvironmentBlock(env)
-    f = open_out(os.path.join(toplevel_build_dir, 'environment.' + arch), 'wb')
-    f.write(env_block)
-    f.close()
-
-    # Find cl.exe location for this architecture.
-    args = vs.SetupScript(arch)
-    args.extend(('&&',
-      'for', '%i', 'in', '(cl.exe)', 'do', '@echo', 'LOC:%~$PATH:i'))
-    popen = subprocess.Popen(args, shell=True, stdout=subprocess.PIPE)
-    output, _ = popen.communicate()
-    cl_paths[arch] = _ExtractCLPath(output)
-  return cl_paths
-
-def OpenOutput(path, mode='w'):
-  """Open |path| for writing, creating directories if necessary."""
-  try:
-    os.makedirs(os.path.dirname(path))
-  except OSError:
-    pass
-  return open(path, mode)
-
-vs_version = None
-def GetVSVersion(generator_flags):
-  global vs_version
-  if not vs_version:
-    vs_version = SelectVisualStudioVersion(
-        generator_flags.get('msvs_version', 'auto'))
-  return vs_version
-
-def _ExtractImportantEnvironment(output_of_set):
-  """Extracts environment variables required for the toolchain to run from
-  a textual dump output by the cmd.exe 'set' command."""
-  envvars_to_save = (
-      'goma_.*', # TODO(scottmg): This is ugly, but needed for goma.
-      'include',
-      'lib',
-      'libpath',
-      'path',
-      'pathext',
-      'systemroot',
-      'temp',
-      'tmp',
-      )
-  env = {}
-  for line in output_of_set.splitlines():
-    for envvar in envvars_to_save:
-      if re.match(envvar + '=', line.lower()):
-        var, setting = line.split('=', 1)
-        if envvar == 'path':
-          # Our own rules (for running gyp-win-tool) and other actions in
-          # Chromium rely on python being in the path. Add the path to this
-          # python here so that if it's not in the path when ninja is run
-          # later, python will still be found.
-          setting = os.path.dirname(sys.executable) + os.pathsep + setting
-        env[var.upper()] = setting
-        break
-  for required in ('SYSTEMROOT', 'TEMP', 'TMP'):
-    if required not in env:
-      raise Exception('Environment variable "%s" '
-                      'required to be set to valid path' % required)
-  return env
-
-def _FormatAsEnvironmentBlock(envvar_dict):
-  """Format as an 'environment block' directly suitable for CreateProcess.
-  Briefly this is a list of key=value\0, terminated by an additional \0. See
-  CreateProcess documentation for more details."""
-  block = ''
-  nul = '\0'
-  for key, value in envvar_dict.iteritems():
-    block += key + '=' + value + nul
-  block += nul
-  return block
-
-
-def GenerateEnvironmentFiles(toplevel_build_dir, generator_flags):
-  """It's not sufficient to have the absolute path to the compiler, linker,
-  etc. on Windows, as those tools rely on .dlls being in the PATH. We also
-  need to support both x86 and x64 compilers within the same build (to support
-  msvs_target_platform hackery). Different architectures require a different
-  compiler binary, and different supporting environment variables (INCLUDE,
-  LIB, LIBPATH). So, we extract the environment here, wrap all invocations
-  of compiler tools (cl, link, lib, rc, midl, etc.) via win_tool.py which
-  sets up the environment, and then we do not prefix the compiler with
-  an absolute path, instead preferring something like "cl.exe" in the rule
-  which will then run whichever the environment setup has put in the path.
-  When the following procedure to generate environment files does not
-  meet your requirement (e.g. for custom toolchains), you can pass
-  "-G ninja_use_custom_environment_files" to the gyp to suppress file
-  generation and use custom environment files prepared by yourself."""
-  archs = ('x86', 'x64')
-  if generator_flags.get('ninja_use_custom_environment_files', 0):
-    cl_paths = {}
-    for arch in archs:
-      cl_paths[arch] = 'cl.exe'
-    return cl_paths
-  vs = GetVSVersion(generator_flags)
-  cl_paths = {}
-  for arch in archs:
-    # Extract environment variables for subprocesses.
-    args = vs.SetupScript(arch)
-    args.extend(('&&', 'set'))
-    popen = subprocess.Popen(
-        args, shell=True, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
-    variables, _ = popen.communicate()
-    env = _ExtractImportantEnvironment(variables)
-    env_block = _FormatAsEnvironmentBlock(env)
-    f = OpenOutput(os.path.join(toplevel_build_dir, 'environment.' + arch), 'wb')
-    f.write(env_block)
-    f.close()
-
-    # Find cl.exe location for this architecture.
-    args = vs.SetupScript(arch)
-    args.extend(('&&',
-      'for', '%i', 'in', '(cl.exe)', 'do', '@echo', 'LOC:%~$PATH:i'))
-    popen = subprocess.Popen(args, shell=True, stdout=subprocess.PIPE)
-    output, _ = popen.communicate()
-    cl_paths[arch] = _ExtractCLPath(output)
-  return cl_paths
-
-def _ExtractCLPath(output_of_where):
-  """Gets the path to cl.exe based on the output of calling the environment
-  setup batch file, followed by the equivalent of `where`."""
-  # Take the first line, as that's the first found in the PATH.
-  for line in output_of_where.strip().splitlines():
-    if line.startswith('LOC:'):
-      return line[len('LOC:'):].strip()
-
-#print SelectVisualStudioVersion().DefaultToolset()
-#GenerateEnvironmentFiles("D:\\src\\src1\\src\\out\\gn\\eraseme", {})
-#print '"', GetVSVersion({}).Path(), '"'
-print '"', GetVSVersion({}).sdk_based, '"'
-
-#-------------------------------------------------------------------------------
-
-version_info = {
-  '2010': {
-    'includes': [
-      'VC\\atlmfc\\include',
-    ],
-  },
-}
diff --git a/tools/gn/secondary/ipc/BUILD.gn b/tools/gn/secondary/ipc/BUILD.gn
deleted file mode 100644
index 5e55ee908353..000000000000
--- a/tools/gn/secondary/ipc/BUILD.gn
+++ /dev/null
@@ -1,168 +0,0 @@
-# Copyright (c) 2012 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-component("ipc") {
-  sources = [
-    "file_descriptor_set_posix.cc",
-    "file_descriptor_set_posix.h",
-    "ipc_channel.cc",
-    "ipc_channel.h",
-    "ipc_channel_factory.cc",
-    "ipc_channel_factory.h",
-    "ipc_channel_handle.h",
-    "ipc_channel_nacl.cc",
-    "ipc_channel_nacl.h",
-    "ipc_channel_posix.cc",
-    "ipc_channel_posix.h",
-    "ipc_channel_proxy.cc",
-    "ipc_channel_proxy.h",
-    "ipc_channel_reader.cc",
-    "ipc_channel_reader.h",
-    "ipc_channel_win.cc",
-    "ipc_channel_win.h",
-    "ipc_descriptors.h",
-    "ipc_export.h",
-    "ipc_forwarding_message_filter.cc",
-    "ipc_forwarding_message_filter.h",
-    "ipc_listener.h",
-    "ipc_logging.cc",
-    "ipc_logging.h",
-    "ipc_message.cc",
-    "ipc_message.h",
-    "ipc_message_macros.h",
-    "ipc_message_start.h",
-    "ipc_message_utils.cc",
-    "ipc_message_utils.h",
-    "ipc_param_traits.h",
-    "ipc_platform_file.cc",
-    "ipc_platform_file.h",
-    "ipc_sender.h",
-    "ipc_switches.cc",
-    "ipc_switches.h",
-    "ipc_sync_channel.cc",
-    "ipc_sync_channel.h",
-    "ipc_sync_message.cc",
-    "ipc_sync_message.h",
-    "ipc_sync_message_filter.cc",
-    "ipc_sync_message_filter.h",
-    "param_traits_log_macros.h",
-    "param_traits_macros.h",
-    "param_traits_read_macros.h",
-    "param_traits_write_macros.h",
-    "struct_constructor_macros.h",
-    "struct_destructor_macros.h",
-    "unix_domain_socket_util.cc",
-    "unix_domain_socket_util.h",
-  ]
-
-  #if (!is_untrusted_nacl) {
-    sources -= [
-      "ipc_channel_nacl.cc",
-      "ipc_channel_nacl.h",
-    ]
-
-  if (is_win || is_ios) {
-    sources -= [
-      "ipc_channel_factory.cc",
-      "unix_domain_socket_util.cc",
-    ]
-  }
-
-  defines = [ "IPC_IMPLEMENTATION" ]
-
-  deps = [
-    "//base",
-    # TODO(viettrungluu): Needed for base/lazy_instance.h, which is suspect.
-    "//base/third_party/dynamic_annotations",
-  ]
-}
-
-test("ipc_tests") {
-  sources = [
-    "file_descriptor_set_posix_unittest.cc",
-    "ipc_channel_posix_unittest.cc",
-    "ipc_channel_unittest.cc",
-    "ipc_fuzzing_tests.cc",
-    "ipc_message_unittest.cc",
-    "ipc_message_utils_unittest.cc",
-    "ipc_send_fds_test.cc",
-    "ipc_sync_channel_unittest.cc",
-    "ipc_sync_message_unittest.cc",
-    "ipc_sync_message_unittest.h",
-    "ipc_test_base.cc",
-    "ipc_test_base.h",
-    "sync_socket_unittest.cc",
-    "unix_domain_socket_util_unittest.cc",
-  ]
-
-  #if (toolkit_uses_gtk) {
-  #  deps += "/build/linux/system:gtk"
-  #}
-  if (is_win || is_ios) {
-    sources -= "unix_domain_socket_util_unittest.cc"
-  }
-  #if (is_android && gtest_target_type == "shared_library") {
-  #  deps += "/testing/android/native_test.gyp:native_testNative_code"
-  #}
-  #if (is_posix && !is_mac && !is_android) {
-  #  if (linux_use_tcmalloc) {
-  #    deps += "/base/allocator"
-  #  }
-  #}
-
-  deps = [
-    ":ipc",
-    ":test_support_ipc",
-    "//base",
-    "//base:base_i18n",
-    "//base:run_all_unittests",
-    "//base:test_support_base",
-    "//testing:gtest",
-  ]
-}
-
-test("ipc_perftests") {
-  sources = [
-    "ipc_perftests.cc",
-    "ipc_test_base.cc",
-    "ipc_test_base.h",
-  ]
-
-  #if (toolkit_uses_gtk) {
-  #  deps += "/build/linux/system:gtk"
-  #}
-  #if (is_android && gtest_target_type == "shared_library") {
-  #  deps += "/testing/android/native_test.gyp:native_testNative_code"
-  #}
-  #if (is_posix && !is_mac && !is_android) {
-  #  if (linux_use_tcmalloc) {
-  #    deps += "/base/allocator"
-  #  }
-  #}
-
-  deps = [
-    ":ipc",
-    ":test_support_ipc",
-    "//base",
-    "//base:base_i18n",
-    "//base:test_support_base",
-    "//base:test_support_perf",
-    "//testing:gtest",
-  ]
-}
-
-static_library("test_support_ipc") {
-  sources = [
-    "ipc_multiprocess_test.cc",
-    "ipc_multiprocess_test.h",
-    "ipc_test_sink.cc",
-    "ipc_test_sink.h",
-  ]
-  deps = [
-    ":ipc",
-    "//base",
-    "//testing:gtest",
-  ]
-}
-
diff --git a/tools/gn/secondary/testing/BUILD.gn b/tools/gn/secondary/testing/BUILD.gn
deleted file mode 100644
index b54cebabd25b..000000000000
--- a/tools/gn/secondary/testing/BUILD.gn
+++ /dev/null
@@ -1,44 +0,0 @@
-# Copyright (c) 2013 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-static_library("gtest") {
-  sources = [
-    "gtest/include/gtest/gtest-death-test.h",
-    "gtest/include/gtest/gtest-message.h",
-    "gtest/include/gtest/gtest-param-test.h",
-    "gtest/include/gtest/gtest-printers.h",
-    "gtest/include/gtest/gtest-spi.h",
-    "gtest/include/gtest/gtest-test-part.h",
-    "gtest/include/gtest/gtest-typed-test.h",
-    "gtest/include/gtest/gtest.h",
-    "gtest/include/gtest/gtest_pred_impl.h",
-    "gtest/include/gtest/internal/gtest-death-test-internal.h",
-    "gtest/include/gtest/internal/gtest-filepath.h",
-    "gtest/include/gtest/internal/gtest-internal.h",
-    "gtest/include/gtest/internal/gtest-linked_ptr.h",
-    "gtest/include/gtest/internal/gtest-param-util-generated.h",
-    "gtest/include/gtest/internal/gtest-param-util.h",
-    "gtest/include/gtest/internal/gtest-port.h",
-    "gtest/include/gtest/internal/gtest-string.h",
-    "gtest/include/gtest/internal/gtest-tuple.h",
-    "gtest/include/gtest/internal/gtest-type-util.h",
-    #"gtest/src/gtest-all.cc",  # Not needed by our build.
-    "gtest/src/gtest-death-test.cc",
-    "gtest/src/gtest-filepath.cc",
-    "gtest/src/gtest-internal-inl.h",
-    "gtest/src/gtest-port.cc",
-    "gtest/src/gtest-printers.cc",
-    "gtest/src/gtest-test-part.cc",
-    "gtest/src/gtest-typed-test.cc",
-    "gtest/src/gtest.cc",
-    "multiprocess_func_list.cc",
-    "multiprocess_func_list.h",
-    "platform_test.h",
-  ]
-
-}
-
-static_library("gmock") {
-
-}
diff --git a/tools/gn/secondary/third_party/modp_b64/BUILD.gn b/tools/gn/secondary/third_party/modp_b64/BUILD.gn
deleted file mode 100644
index 5598f12f1820..000000000000
--- a/tools/gn/secondary/third_party/modp_b64/BUILD.gn
+++ /dev/null
@@ -1,11 +0,0 @@
-# Copyright (c) 2013 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-
-static_library("modp_b64") {
-  sources = [
-    "modp_b64.cc",
-    "modp_b64.h",
-    "modp_b64_data.h",
-  ]
-}
diff --git a/tools/gn/settings.cc b/tools/gn/settings.cc
deleted file mode 100644
index 82014a7d779f..000000000000
--- a/tools/gn/settings.cc
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/settings.h"
-
-#include "base/logging.h"
-#include "tools/gn/filesystem_utils.h"
-
-Settings::Settings(const BuildSettings* build_settings,
-                   const Toolchain* toolchain,
-                   const std::string& output_subdir_name)
-    : build_settings_(build_settings),
-      toolchain_(toolchain),
-      target_os_(WIN),  // FIXME(brettw) set this properly.
-      import_manager_(),
-      base_config_(this) {
-  DCHECK(output_subdir_name.find('/') == std::string::npos);
-  if (output_subdir_name.empty()) {
-    toolchain_output_dir_ = build_settings->build_dir();
-  } else {
-    // We guarantee this ends in a slash.
-    toolchain_output_subdir_.value().append(output_subdir_name);
-    toolchain_output_subdir_.value().push_back('/');
-
-    toolchain_output_dir_ = SourceDir(build_settings->build_dir().value() +
-                                      toolchain_output_subdir_.value());
-  }
-  // The output dir will be null in some tests and when invoked to parsed
-  // one-off data without doing generation.
-  if (!toolchain_output_dir_.is_null())
-    toolchain_gen_dir_ = SourceDir(toolchain_output_dir_.value() + "gen/");
-}
-
-Settings::~Settings() {
-}
-
-
diff --git a/tools/gn/settings.h b/tools/gn/settings.h
deleted file mode 100644
index 93a1ae6b4129..000000000000
--- a/tools/gn/settings.h
+++ /dev/null
@@ -1,107 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_SETTINGS_H_
-#define TOOLS_GN_SETTINGS_H_
-
-#include "base/files/file_path.h"
-#include "tools/gn/build_settings.h"
-#include "tools/gn/import_manager.h"
-#include "tools/gn/output_file.h"
-#include "tools/gn/scope.h"
-#include "tools/gn/source_dir.h"
-#include "tools/gn/toolchain.h"
-
-// Holds the settings for one toolchain invocation. There will be one
-// Settings object for each toolchain type, each referring to the same
-// BuildSettings object for shared stuff.
-//
-// The Settings object is const once it is constructed, which allows us to
-// use it from multiple threads during target generation without locking (which
-// is important, because it gets used a lot).
-//
-// The Toolchain object holds the set of stuff that is set by the toolchain
-// declaration, which obviously needs to be set later when we actually parse
-// the file with the toolchain declaration in it.
-class Settings {
- public:
-  enum TargetOS {
-    UNKNOWN,
-    LINUX,
-    MAC,
-    WIN
-  };
-
-  // Constructs a toolchain settings. The output_subdir_name is the name we
-  // should use for the subdirectory in the build output directory for this
-  // toolchain's outputs. It should have no slashes in it. The default
-  // toolchain should use an empty string.
-  Settings(const BuildSettings* build_settings,
-           const Toolchain* toolchain,
-           const std::string& output_subdir_name);
-  ~Settings();
-
-  const BuildSettings* build_settings() const { return build_settings_; }
-
-  // Danger: this must only be used for getting the toolchain label until the
-  // toolchain has been resolved. Otherwise, it will be modified on an
-  // arbitrary thread when the toolchain invocation is found. Generally, you
-  // will only read this from the target generation where we know everything
-  // has been resolved and won't change.
-  const Toolchain* toolchain() const { return toolchain_; }
-
-  bool IsMac() const { return target_os_ == MAC; }
-  bool IsWin() const { return target_os_ == WIN; }
-
-  TargetOS target_os() const { return target_os_; }
-  void set_target_os(TargetOS t) { target_os_ = t; }
-
-  const OutputFile& toolchain_output_subdir() const {
-    return toolchain_output_subdir_;
-  }
-  const SourceDir& toolchain_output_dir() const {
-    return toolchain_output_dir_;
-  }
-
-  // Directory for generated files.
-  const SourceDir& toolchain_gen_dir() const {
-    return toolchain_gen_dir_;
-  }
-
-  // The import manager caches the result of executing imported files in the
-  // context of a given settings object.
-  //
-  // See the ItemTree getter in GlobalSettings for why this doesn't return a
-  // const pointer.
-  ImportManager& import_manager() const { return import_manager_; }
-
-  const Scope* base_config() const { return &base_config_; }
-  Scope* base_config() { return &base_config_; }
-
- private:
-  const BuildSettings* build_settings_;
-
-  const Toolchain* toolchain_;
-
-  TargetOS target_os_;
-
-  mutable ImportManager import_manager_;
-
-  // The subdirectory inside the build output for this toolchain. For the
-  // default toolchain, this will be empty (since the deafult toolchain's
-  // output directory is the same as the build directory). When nonempty, this
-  // is guaranteed to end in a slash.
-  OutputFile toolchain_output_subdir_;
-
-  // Full source file path to the toolchain output directory.
-  SourceDir toolchain_output_dir_;
-
-  SourceDir toolchain_gen_dir_;
-
-  Scope base_config_;
-
-  DISALLOW_COPY_AND_ASSIGN(Settings);
-};
-
-#endif  // TOOLS_GN_SETTINGS_H_
diff --git a/tools/gn/setup.cc b/tools/gn/setup.cc
deleted file mode 100644
index f93cd4d31a1c..000000000000
--- a/tools/gn/setup.cc
+++ /dev/null
@@ -1,195 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/setup.h"
-
-#include "base/command_line.h"
-#include "base/file_util.h"
-#include "base/files/file_path.h"
-#include "tools/gn/filesystem_utils.h"
-#include "tools/gn/input_file.h"
-#include "tools/gn/parse_tree.h"
-#include "tools/gn/parser.h"
-#include "tools/gn/source_dir.h"
-#include "tools/gn/source_file.h"
-#include "tools/gn/tokenizer.h"
-#include "tools/gn/value.h"
-
-namespace {
-
-// More logging.
-const char kSwitchVerbose[] = "v";
-
-const char kSwitchRoot[] = "root";
-const char kSecondarySource[] = "secondary";
-
-const base::FilePath::CharType kGnFile[] = FILE_PATH_LITERAL(".gn");
-
-base::FilePath FindDotFile(const base::FilePath& current_dir) {
-  base::FilePath try_this_file = current_dir.Append(kGnFile);
-  if (base::PathExists(try_this_file))
-    return try_this_file;
-
-  base::FilePath with_no_slash = current_dir.StripTrailingSeparators();
-  base::FilePath up_one_dir = with_no_slash.DirName();
-  if (up_one_dir == current_dir)
-    return base::FilePath();  // Got to the top.
-
-  return FindDotFile(up_one_dir);
-}
-
-}  // namespace
-
-Setup::Setup()
-    : dotfile_toolchain_(Label()),
-      dotfile_settings_(&dotfile_build_settings_, &dotfile_toolchain_,
-                        std::string()),
-      dotfile_scope_(&dotfile_settings_) {
-}
-
-Setup::~Setup() {
-}
-
-bool Setup::DoSetup() {
-  CommandLine* cmdline = CommandLine::ForCurrentProcess();
-
-  scheduler_.set_verbose_logging(cmdline->HasSwitch(kSwitchVerbose));
-
-  if (!FillSourceDir(*cmdline))
-    return false;
-  if (!RunConfigFile())
-    return false;
-  if (!FillOtherConfig(*cmdline))
-    return false;
-
-  // FIXME(brettw) get python path!
-/*#if defined(OS_WIN)
-  build_settings_.set_python_path(base::FilePath(
-      //L"P:\\depot_tools\\python_bin\\python.exe"));
-      L"C:\\apps\\depot_tools\\python_bin\\python.exe"));
-#else*/
-  build_settings_.set_python_path(base::FilePath("python"));
-//#endif
-
-  build_settings_.SetBuildDir(SourceDir("//out/gn/"));
-
-  return true;
-}
-
-bool Setup::Run() {
-  // Load the root build file and start runnung.
-  build_settings_.toolchain_manager().StartLoadingUnlocked(
-      SourceFile("//BUILD.gn"));
-  if (!scheduler_.Run())
-    return false;
-
-  Err err = build_settings_.item_tree().CheckForBadItems();
-  if (err.has_error()) {
-    err.PrintToStdout();
-    return false;
-  }
-  return true;
-}
-
-bool Setup::FillSourceDir(const CommandLine& cmdline) {
-  // Find the .gn file.
-  base::FilePath root_path;
-
-  // Prefer the command line args to the config file.
-  base::FilePath relative_root_path = cmdline.GetSwitchValuePath(kSwitchRoot);
-  if (!relative_root_path.empty()) {
-    root_path = base::MakeAbsoluteFilePath(relative_root_path);
-    dotfile_name_ = root_path.Append(kGnFile);
-  } else {
-    base::FilePath cur_dir;
-    file_util::GetCurrentDirectory(&cur_dir);
-    dotfile_name_ = FindDotFile(cur_dir);
-    if (dotfile_name_.empty()) {
-      Err(Location(), "Can't find source root.",
-          "I could not find a \".gn\" file in the current directory or any "
-          "parent,\nand the --root command-line argument was not specified.")
-          .PrintToStdout();
-      return false;
-    }
-    root_path = dotfile_name_.DirName();
-  }
-
-  if (scheduler_.verbose_logging())
-    scheduler_.Log("Using source root", FilePathToUTF8(root_path));
-  build_settings_.set_root_path(root_path);
-
-  return true;
-}
-
-bool Setup::RunConfigFile() {
-  if (scheduler_.verbose_logging())
-    scheduler_.Log("Got dotfile", FilePathToUTF8(dotfile_name_));
-
-  dotfile_input_file_.reset(new InputFile(SourceFile("//.gn")));
-  if (!dotfile_input_file_->Load(dotfile_name_)) {
-    Err(Location(), "Could not load dotfile.",
-        "The file \"" + FilePathToUTF8(dotfile_name_) + "\" cound't be loaded")
-        .PrintToStdout();
-    return false;
-  }
-
-  Err err;
-  dotfile_tokens_ = Tokenizer::Tokenize(dotfile_input_file_.get(), &err);
-  if (err.has_error()) {
-    err.PrintToStdout();
-    return false;
-  }
-
-  dotfile_root_ = Parser::Parse(dotfile_tokens_, &err);
-  if (err.has_error()) {
-    err.PrintToStdout();
-    return false;
-  }
-
-  dotfile_root_->AsBlock()->ExecuteBlockInScope(&dotfile_scope_, &err);
-  if (err.has_error()) {
-    err.PrintToStdout();
-    return false;
-  }
-
-  return true;
-}
-
-bool Setup::FillOtherConfig(const CommandLine& cmdline) {
-  Err err;
-
-  // Secondary source path.
-  SourceDir secondary_source;
-  if (cmdline.HasSwitch(kSecondarySource)) {
-    // Prefer the command line over the config file.
-    secondary_source =
-        SourceDir(cmdline.GetSwitchValueASCII(kSecondarySource));
-  } else {
-    // Read from the config file if present.
-    const Value* secondary_value =
-        dotfile_scope_.GetValue("secondary_source", true);
-    if (secondary_value) {
-      if (!secondary_value->VerifyTypeIs(Value::STRING, &err)) {
-        err.PrintToStdout();
-        return false;
-      }
-      build_settings_.SetSecondarySourcePath(
-          SourceDir(secondary_value->string_value()));
-    }
-  }
-
-  // Build config dir.
-  const Value* build_config_value =
-      dotfile_scope_.GetValue("buildconfig", true);
-  if (!build_config_value) {
-    Err(Location(), "No build config file.",
-        "Your .gn file (\"" + FilePathToUTF8(dotfile_name_) + "\")\n"
-        "didn't specify a \"buildconfig\" value.").PrintToStdout();
-    return false;
-  }
-  build_settings_.set_build_config_file(
-      SourceFile("//build/config/BUILDCONFIG.gn"));
-
-  return true;
-}
diff --git a/tools/gn/setup.h b/tools/gn/setup.h
deleted file mode 100644
index e698ac54f261..000000000000
--- a/tools/gn/setup.h
+++ /dev/null
@@ -1,69 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_SETUP_H_
-#define TOOLS_GN_SETUP_H_
-
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/files/file_path.h"
-#include "base/memory/scoped_ptr.h"
-#include "tools/gn/build_settings.h"
-#include "tools/gn/scheduler.h"
-#include "tools/gn/scope.h"
-#include "tools/gn/settings.h"
-#include "tools/gn/token.h"
-#include "tools/gn/toolchain.h"
-
-class CommandLine;
-class InputFile;
-class ParseNode;
-
-// Helper class to setup the build settings and environment for the various
-// commands to run.
-class Setup {
- public:
-  Setup();
-  ~Setup();
-
-  // Configures the build for the current command line. On success returns
-  // true. On failure, prints the error and returns false.
-  bool DoSetup();
-
-  // Runs the load, returning true on success. On failure, prints the error
-  // and returns false.
-  bool Run();
-
-  BuildSettings& build_settings() { return build_settings_; }
-  Scheduler& scheduler() { return scheduler_; }
-
- private:
-  // Fills the root directory into the settings. Returns true on success.
-  bool FillSourceDir(const CommandLine& cmdline);
-
-  // Run config file.
-  bool RunConfigFile();
-
-  bool FillOtherConfig(const CommandLine& cmdline);
-
-  BuildSettings build_settings_;
-  Scheduler scheduler_;
-
-  // State for invoking the dotfile.
-  // TODO(brettw) this seems a bit excessive, maybe we can get this down
-  // somehow?
-  base::FilePath dotfile_name_;
-  scoped_ptr<InputFile> dotfile_input_file_;
-  std::vector<Token> dotfile_tokens_;
-  scoped_ptr<ParseNode> dotfile_root_;
-  BuildSettings dotfile_build_settings_;
-  Toolchain dotfile_toolchain_;
-  Settings dotfile_settings_;
-  Scope dotfile_scope_;
-
-  DISALLOW_COPY_AND_ASSIGN(Setup);
-};
-
-#endif  // TOOLS_GN_SETUP_H_
diff --git a/tools/gn/source_dir.cc b/tools/gn/source_dir.cc
deleted file mode 100644
index 5739b527f562..000000000000
--- a/tools/gn/source_dir.cc
+++ /dev/null
@@ -1,98 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/source_dir.h"
-
-#include "base/logging.h"
-#include "tools/gn/filesystem_utils.h"
-#include "tools/gn/source_file.h"
-
-namespace {
-
-void AssertValueSourceDirString(const std::string& s) {
-  DCHECK(!s.empty());
-  DCHECK(s[0] == '/');
-  DCHECK(EndsWithSlash(s));
-}
-
-}  // namespace
-
-SourceDir::SourceDir() {
-}
-
-SourceDir::SourceDir(const base::StringPiece& p)
-    : value_(p.data(), p.size()) {
-  if (!EndsWithSlash(value_))
-    value_.push_back('/');
-  AssertValueSourceDirString(value_);
-}
-
-SourceDir::~SourceDir() {
-}
-
-SourceFile SourceDir::ResolveRelativeFile(const base::StringPiece& p) const {
-  SourceFile ret;
-
-  // It's an error to resolve an empty string or one that is a directory
-  // (indicated by a trailing slash) because this is the function that expects
-  // to return a file.
-  if (p.empty() || (p.size() > 0 && p[p.size() - 1] == '/'))
-    return SourceFile();
-  if (p[0] == '/') {
-    // Absolute path.
-    ret.value_.assign(p.data(), p.size());
-    return ret;
-  }
-
-  ret.value_.reserve(value_.size() + p.size());
-  ret.value_.assign(value_);
-  ret.value_.append(p.data(), p.size());
-
-  NormalizePath(&ret.value_);
-  return ret;
-}
-
-SourceDir SourceDir::ResolveRelativeDir(const base::StringPiece& p) const {
-  SourceDir ret;
-
-  if (p.empty())
-    return ret;
-  if (p[0] == '/') {
-    // Absolute path.
-    return SourceDir(p);
-  }
-
-  ret.value_.reserve(value_.size() + p.size());
-  ret.value_.assign(value_);
-  ret.value_.append(p.data(), p.size());
-
-  NormalizePath(&ret.value_);
-  if (!EndsWithSlash(ret.value_))
-    ret.value_.push_back('/');
-  AssertValueSourceDirString(ret.value_);
-
-  return ret;
-}
-
-base::FilePath SourceDir::Resolve(const base::FilePath& source_root) const {
-  if (is_null())
-    return base::FilePath();
-
-  std::string converted;
-  if (is_system_absolute()) {
-    converted = value_;
-    ConvertPathToSystem(&converted);
-    return base::FilePath(UTF8ToFilePath(converted));
-  }
-
-  // String the double-leading slash for source-relative paths.
-  converted.assign(&value_[2], value_.size() - 2);
-  ConvertPathToSystem(&converted);
-  return source_root.Append(UTF8ToFilePath(converted));
-}
-
-void SourceDir::SwapInValue(std::string* v) {
-  value_.swap(*v);
-  AssertValueSourceDirString(value_);
-}
diff --git a/tools/gn/source_dir.h b/tools/gn/source_dir.h
deleted file mode 100644
index 3b6caee6bcda..000000000000
--- a/tools/gn/source_dir.h
+++ /dev/null
@@ -1,104 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_SOURCE_DIR_H_
-#define TOOLS_GN_SOURCE_DIR_H_
-
-#include <string>
-
-#include "base/containers/hash_tables.h"
-#include "base/files/file_path.h"
-#include "base/logging.h"
-#include "base/strings/string_piece.h"
-
-class SourceFile;
-
-// Represents a directory within the source tree. Source dirs begin and end in
-// slashes.
-//
-// If there is one slash at the beginning, it will mean a system-absolute file
-// path. On Windows, absolute system paths will be of the form "/C:/foo/bar".
-//
-// Two slashes at the beginning indicate a path relative to the source root.
-class SourceDir {
- public:
-  SourceDir();
-  explicit SourceDir(const base::StringPiece& p);
-  ~SourceDir();
-
-  // Resolves a file or dir name relative to this source directory. Will return
-  // an empty SourceDir/File on error. Empty input is always an error (it's
-  // possible we should say ResolveRelativeDir vs. an empty string should be
-  // the source dir, but we require "." instead).
-  SourceFile ResolveRelativeFile(const base::StringPiece& p) const;
-  SourceDir ResolveRelativeDir(const base::StringPiece& p) const;
-
-  // Resolves this source file relative to some given source root. Returns
-  // an empty file path on error.
-  base::FilePath Resolve(const base::FilePath& source_root) const;
-
-  bool is_null() const { return value_.empty(); }
-  const std::string& value() const { return value_; }
-
-  // Returns true if this path starts with a "//" which indicates a path
-  // from the source root.
-  bool is_source_absolute() const {
-    return value_.size() >= 2 && value_[0] == '/' && value_[1] == '/';
-  }
-
-  // Returns true if this path starts with a single slash which indicates a
-  // system-absolute path.
-  bool is_system_absolute() const {
-    return !is_source_absolute();
-  }
-
-  // Returns a source-absolute path starting with only one slash at the
-  // beginning (normally source-absolute paths start with two slashes to mark
-  // them as such). This is normally used when concatenating directories
-  // together.
-  //
-  // This function asserts that the directory is actually source-absolute. The
-  // return value points into our buffer.
-  base::StringPiece SourceAbsoluteWithOneSlash() const {
-    CHECK(is_source_absolute());
-    return base::StringPiece(&value_[1], value_.size() - 1);
-  }
-
-  void SwapInValue(std::string* v);
-
-  bool operator==(const SourceDir& other) const {
-    return value_ == other.value_;
-  }
-  bool operator!=(const SourceDir& other) const {
-    return !operator==(other);
-  }
-  bool operator<(const SourceDir& other) const {
-    return value_ < other.value_;
-  }
-
- private:
-  friend class SourceFile;
-  std::string value_;
-
-  // Copy & assign supported.
-};
-
-namespace BASE_HASH_NAMESPACE {
-
-#if defined(COMPILER_GCC)
-template<> struct hash<SourceDir> {
-  std::size_t operator()(const SourceDir& v) const {
-    hash<std::string> h;
-    return h(v.value());
-  }
-};
-#elif defined(COMPILER_MSVC)
-inline size_t hash_value(const SourceDir& v) {
-  return hash_value(v.value());
-}
-#endif  // COMPILER...
-
-}  // namespace BASE_HASH_NAMESPACE
-
-#endif  // TOOLS_GN_SOURCE_DIR_H_
diff --git a/tools/gn/source_dir_unittest.cc b/tools/gn/source_dir_unittest.cc
deleted file mode 100644
index 745513db7599..000000000000
--- a/tools/gn/source_dir_unittest.cc
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "testing/gtest/include/gtest/gtest.h"
-#include "tools/gn/source_dir.h"
-#include "tools/gn/source_file.h"
-
-TEST(SourceDir, ResolveRelativeFile) {
-  SourceDir base("//base/");
-
-  // Empty input is an error.
-  EXPECT_TRUE(base.ResolveRelativeFile("") == SourceFile());
-
-  // These things are directories, so should be an error.
-  EXPECT_TRUE(base.ResolveRelativeFile("//foo/bar/") == SourceFile());
-  EXPECT_TRUE(base.ResolveRelativeFile("bar/") == SourceFile());
-
-  // Absolute paths should be passed unchanged.
-  EXPECT_TRUE(base.ResolveRelativeFile("//foo") == SourceFile("//foo"));
-  EXPECT_TRUE(base.ResolveRelativeFile("/foo") == SourceFile("/foo"));
-
-  // Basic relative stuff.
-  EXPECT_TRUE(base.ResolveRelativeFile("foo") == SourceFile("//base/foo"));
-  EXPECT_TRUE(base.ResolveRelativeFile("./foo") == SourceFile("//base/foo"));
-  EXPECT_TRUE(base.ResolveRelativeFile("../foo") == SourceFile("//foo"));
-  EXPECT_TRUE(base.ResolveRelativeFile("../../foo") == SourceFile("//foo"));
-}
-
-TEST(SourceDir, ResolveRelativeDir) {
-  SourceDir base("//base/");
-
-  // Empty input is an error.
-  EXPECT_TRUE(base.ResolveRelativeDir("") == SourceDir());
-
-  // Absolute paths should be passed unchanged.
-  EXPECT_TRUE(base.ResolveRelativeDir("//foo") == SourceDir("//foo/"));
-  EXPECT_TRUE(base.ResolveRelativeDir("/foo") == SourceDir("/foo/"));
-
-  // Basic relative stuff.
-  EXPECT_TRUE(base.ResolveRelativeDir("foo") == SourceDir("//base/foo/"));
-  EXPECT_TRUE(base.ResolveRelativeDir("./foo") == SourceDir("//base/foo/"));
-  EXPECT_TRUE(base.ResolveRelativeDir("../foo") == SourceDir("//foo/"));
-  EXPECT_TRUE(base.ResolveRelativeDir("../../foo/") == SourceDir("//foo/"));
-}
diff --git a/tools/gn/source_file.cc b/tools/gn/source_file.cc
deleted file mode 100644
index de07de1171b0..000000000000
--- a/tools/gn/source_file.cc
+++ /dev/null
@@ -1,67 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/source_file.h"
-
-#include "base/logging.h"
-#include "build/build_config.h"
-#include "tools/gn/filesystem_utils.h"
-#include "tools/gn/source_dir.h"
-
-SourceFile::SourceFile() {
-}
-
-SourceFile::SourceFile(const base::StringPiece& p)
-    : value_(p.data(), p.size()) {
-  DCHECK(!value_.empty());
-  DCHECK(value_[0] == '/');
-  DCHECK(!EndsWithSlash(value_));
-}
-
-SourceFile::~SourceFile() {
-}
-
-std::string SourceFile::GetName() const {
-  if (is_null())
-    return std::string();
-
-  DCHECK(value_.find('/') != std::string::npos);
-  size_t last_slash = value_.rfind('/');
-  return std::string(&value_[last_slash + 1],
-                     value_.size() - last_slash - 1);
-}
-
-SourceDir SourceFile::GetDir() const {
-  if (is_null())
-    return SourceDir();
-
-  DCHECK(value_.find('/') != std::string::npos);
-  size_t last_slash = value_.rfind('/');
-  return SourceDir(base::StringPiece(&value_[0], last_slash + 1));
-}
-
-base::FilePath SourceFile::Resolve(const base::FilePath& source_root) const {
-  if (is_null())
-    return base::FilePath();
-
-  std::string converted;
-#if defined(OS_WIN)
-  if (is_system_absolute()) {
-    converted.assign(&value_[1], value_.size() - 1);
-    DCHECK(converted.size() > 2 && converted[1] == ':')
-        << "Expecting Windows absolute file path with a drive letter: "
-        << value_;
-    return base::FilePath(UTF8ToFilePath(converted));
-  }
-
-  converted.assign(&value_[2], value_.size() - 2);
-  ConvertPathToSystem(&converted);
-  return root_path_.Append(UTF8ToFilePath(converted));
-#else
-  if (is_system_absolute())
-    return base::FilePath(value_);
-  converted.assign(&value_[2], value_.size() - 2);
-  return source_root.Append(converted);
-#endif
-}
diff --git a/tools/gn/source_file.h b/tools/gn/source_file.h
deleted file mode 100644
index d883bc061f61..000000000000
--- a/tools/gn/source_file.h
+++ /dev/null
@@ -1,97 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_SOURCE_FILE_H_
-#define TOOLS_GN_SOURCE_FILE_H_
-
-#include <string>
-
-#include "base/containers/hash_tables.h"
-#include "base/files/file_path.h"
-#include "base/logging.h"
-#include "base/strings/string_piece.h"
-
-class SourceDir;
-
-// Represents a file within the source tree. Always begins in a slash, never
-// ends in one.
-class SourceFile {
- public:
-  SourceFile();
-
-  // Takes a known absolute source file. Always begins in a slash.
-  explicit SourceFile(const base::StringPiece& p);
-
-  ~SourceFile();
-
-  bool is_null() const { return value_.empty(); }
-  const std::string& value() const { return value_; }
-
-  // Returns everythign after the last slash.
-  std::string GetName() const;
-  SourceDir GetDir() const;
-
-  // Resolves this source file relative to some given source root. Returns
-  // an empty file path on error.
-  base::FilePath Resolve(const base::FilePath& source_root) const;
-
-  // Returns true if this file starts with a "//" which indicates a path
-  // from the source root.
-  bool is_source_absolute() const {
-    return value_.size() >= 2 && value_[0] == '/' && value_[1] == '/';
-  }
-
-  // Returns true if this file starts with a single slash which indicates a
-  // system-absolute path.
-  bool is_system_absolute() const {
-    return !is_source_absolute();
-  }
-
-  // Returns a source-absolute path starting with only one slash at the
-  // beginning (normally source-absolute paths start with two slashes to mark
-  // them as such). This is normally used when concatenating names together.
-  //
-  // This function asserts that the file is actually source-absolute. The
-  // return value points into our buffer.
-  base::StringPiece SourceAbsoluteWithOneSlash() const {
-    CHECK(is_source_absolute());
-    return base::StringPiece(&value_[1], value_.size() - 1);
-  }
-
-  bool operator==(const SourceFile& other) const {
-    return value_ == other.value_;
-  }
-  bool operator!=(const SourceFile& other) const {
-    return !operator==(other);
-  }
-  bool operator<(const SourceFile& other) const {
-    return value_ < other.value_;
-  }
-
- private:
-  friend class SourceDir;
-
-  std::string value_;
-
-  // Copy & assign supported.
-};
-
-namespace BASE_HASH_NAMESPACE {
-
-#if defined(COMPILER_GCC)
-template<> struct hash<SourceFile> {
-  std::size_t operator()(const SourceFile& v) const {
-    hash<std::string> h;
-    return h(v.value());
-  }
-};
-#elif defined(COMPILER_MSVC)
-inline size_t hash_value(const SourceFile& v) {
-  return hash_value(v.value());
-}
-#endif  // COMPILER...
-
-}  // namespace BASE_HASH_NAMESPACE
-
-#endif  // TOOLS_GN_SOURCE_FILE_H_
diff --git a/tools/gn/standard_out.cc b/tools/gn/standard_out.cc
deleted file mode 100644
index f6a20318e41f..000000000000
--- a/tools/gn/standard_out.cc
+++ /dev/null
@@ -1,84 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/standard_out.h"
-
-#include "build/build_config.h"
-
-#if defined(OS_WIN)
-#include <windows.h>
-#else
-#include <stdio.h>
-#endif
-
-namespace {
-
-bool initialized = false;
-
-#if defined(OS_WIN)
-HANDLE hstdout;
-WORD default_attributes;
-
-bool is_console = false;
-#endif
-
-void EnsureInitialized() {
-  if (initialized)
-    return;
-  initialized = true;
-
-#if defined(OS_WIN)
-  hstdout = ::GetStdHandle(STD_OUTPUT_HANDLE);
-  CONSOLE_SCREEN_BUFFER_INFO info;
-  is_console = !!::GetConsoleScreenBufferInfo(hstdout, &info);
-  default_attributes = info.wAttributes;
-#endif
-}
-
-}  // namespace
-
-#if defined(OS_WIN)
-
-void OutputString(const std::string& output, TextDecoration dec) {
-  EnsureInitialized();
-  if (is_console) {
-    switch (dec) {
-      case DECORATION_NONE:
-        break;
-      case DECORATION_BOLD:
-        ::SetConsoleTextAttribute(hstdout, FOREGROUND_INTENSITY);
-        break;
-      case DECORATION_RED:
-        ::SetConsoleTextAttribute(hstdout,
-                                  FOREGROUND_RED | FOREGROUND_INTENSITY);
-        break;
-      case DECORATION_GREEN:
-        // Keep green non-bold.
-        ::SetConsoleTextAttribute(hstdout, FOREGROUND_GREEN);
-        break;
-      case DECORATION_BLUE:
-        ::SetConsoleTextAttribute(hstdout,
-                                  FOREGROUND_BLUE | FOREGROUND_INTENSITY);
-        break;
-      case DECORATION_YELLOW:
-        ::SetConsoleTextAttribute(hstdout,
-                                  FOREGROUND_RED | FOREGROUND_GREEN);
-        break;
-    }
-  }
-
-  DWORD written = 0;
-  ::WriteFile(hstdout, output.c_str(), output.size(), &written, NULL);
-
-  if (is_console)
-    ::SetConsoleTextAttribute(hstdout, default_attributes);
-}
-
-#else
-
-void OutputString(const std::string& output, TextDecoration dec) {
-  printf("%s", output.c_str());
-}
-
-#endif
diff --git a/tools/gn/standard_out.h b/tools/gn/standard_out.h
deleted file mode 100644
index 2eb525bd4697..000000000000
--- a/tools/gn/standard_out.h
+++ /dev/null
@@ -1,22 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_STANDARD_OUT_H_
-#define TOOLS_GN_STANDARD_OUT_H_
-
-#include <string>
-
-enum TextDecoration {
-  DECORATION_NONE = 0,
-  DECORATION_BOLD,
-  DECORATION_RED,
-  DECORATION_GREEN,
-  DECORATION_BLUE,
-  DECORATION_YELLOW
-};
-
-void OutputString(const std::string& output,
-                  TextDecoration dec = DECORATION_NONE);
-
-#endif  // TOOLS_GN_STANDARD_OUT_H_
diff --git a/tools/gn/string_utils.cc b/tools/gn/string_utils.cc
deleted file mode 100644
index 14d296a51e2b..000000000000
--- a/tools/gn/string_utils.cc
+++ /dev/null
@@ -1,168 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/string_utils.h"
-
-#include "tools/gn/err.h"
-#include "tools/gn/scope.h"
-#include "tools/gn/token.h"
-#include "tools/gn/tokenizer.h"
-#include "tools/gn/value.h"
-
-namespace {
-
-// Constructs an Err indicating a range inside a string. We assume that the
-// token has quotes around it that are not counted by the offset.
-Err ErrInsideStringToken(const Token& token, size_t offset, size_t size,
-                         const std::string& msg,
-                         const std::string& help = std::string()) {
-  // The "+1" is skipping over the " at the beginning of the token.
-  Location begin_loc(token.location().file(),
-                     token.location().line_number(),
-                     token.location().char_offset() + offset + 1);
-  Location end_loc(token.location().file(),
-                   token.location().line_number(),
-                   token.location().char_offset() + offset + 1 + size);
-  return Err(LocationRange(begin_loc, end_loc), msg, help);
-}
-
-// Given the character input[i] indicating the $ in a string, locates the
-// identifier and places its range in |*identifier|, and updates |*i| to
-// point to the last character consumed.
-//
-// On error returns false and sets the error.
-bool LocateInlineIdenfitier(const Token& token,
-                            const char* input, size_t size,
-                            size_t* i,
-                            base::StringPiece* identifier,
-                            Err* err) {
-  size_t dollars_index = *i;
-  (*i)++;
-  if (*i == size) {
-    *err = ErrInsideStringToken(token, dollars_index, 1, "$ at end of string.",
-        "I was expecting an identifier after the $.");
-    return false;
-  }
-
-  bool has_brackets;
-  if (input[*i] == '{') {
-    (*i)++;
-    if (*i == size) {
-      *err = ErrInsideStringToken(token, dollars_index, 2,
-          "${ at end of string.",
-          "I was expecting an identifier inside the ${...}.");
-      return false;
-    }
-    has_brackets = true;
-  } else {
-    has_brackets = false;
-  }
-
-  // First char is special.
-  if (!Tokenizer::IsIdentifierFirstChar(input[*i])) {
-    *err = ErrInsideStringToken(
-        token, dollars_index, *i - dollars_index + 1,
-        "$ not followed by an identifier char.",
-        "It you want a literal $ use \"\\$\".");
-    return false;
-  }
-  size_t begin_offset = *i;
-  (*i)++;
-
-  // Find the first non-identifier char following the string.
-  while (*i < size && Tokenizer::IsIdentifierContinuingChar(input[*i]))
-    (*i)++;
-  size_t end_offset = *i;
-
-  // If we started with a bracket, validate that there's an ending one. Leave
-  // *i pointing to the last char we consumed (backing up one).
-  if (has_brackets) {
-    if (*i == size) {
-      *err = ErrInsideStringToken(token, dollars_index, *i - dollars_index,
-                                  "Unterminated ${...");
-      return false;
-    } else if (input[*i] != '}') {
-      *err = ErrInsideStringToken(token, *i, 1, "Not an identifier in string expansion.",
-          "The contents of ${...} should be an identifier. "
-          "This character is out of sorts.");
-      return false;
-    }
-    // We want to consume the bracket but also back up one, so *i is unchanged.
-  } else {
-    (*i)--;
-  }
-
-  *identifier = base::StringPiece(&input[begin_offset],
-                                  end_offset - begin_offset);
-  return true;
-}
-
-bool AppendIdentifierValue(Scope* scope,
-                           const Token& token,
-                           const base::StringPiece& identifier,
-                           std::string* output,
-                           Err* err) {
-  const Value* value = scope->GetValue(identifier, true);
-  if (!value) {
-    // We assume the identifier points inside the token.
-    *err = ErrInsideStringToken(
-        token, identifier.data() - token.value().data() - 1, identifier.size(),
-        "Undefined identifier in string expansion.",
-        std::string("\"") + identifier + "\" is not currently in scope.");
-    return false;
-  }
-
-  output->append(value->ToString());
-  return true;
-}
-
-}  // namespace
-
-bool ExpandStringLiteral(Scope* scope,
-                         const Token& literal,
-                         Value* result,
-                         Err* err) {
-  DCHECK(literal.type() == Token::STRING);
-  DCHECK(literal.value().size() > 1);  // Should include quotes.
-  DCHECK(result->type() == Value::STRING);  // Should be already set.
-
-  // The token includes the surrounding quotes, so strip those off.
-  const char* input = &literal.value().data()[1];
-  size_t size = literal.value().size() - 2;
-
-  std::string& output = result->string_value();
-  output.reserve(size);
-  for (size_t i = 0; i < size; i++) {
-    if (input[i] == '\\') {
-      if (i < size - 1) {
-        switch (input[i + 1]) {
-          case '\\':
-          case '"':
-          case '$':
-            output.push_back(input[i + 1]);
-            i++;
-            continue;
-          default:  // Everything else has no meaning: pass the literal.
-            break;
-        }
-      }
-      output.push_back(input[i]);
-    } else if (input[i] == '$') {
-      base::StringPiece identifier;
-      if (!LocateInlineIdenfitier(literal, input, size, &i, &identifier, err))
-        return false;
-      if (!AppendIdentifierValue(scope, literal, identifier, &output, err))
-        return false;
-    } else {
-      output.push_back(input[i]);
-    }
-  }
-  return true;
-}
-
-std::string RemovePrefix(const std::string& str, const std::string& prefix) {
-  CHECK(str.size() >= prefix.size() &&
-        str.compare(0, prefix.size(), prefix) == 0);
-  return str.substr(prefix.size());
-}
diff --git a/tools/gn/string_utils.h b/tools/gn/string_utils.h
deleted file mode 100644
index 7fff1d856028..000000000000
--- a/tools/gn/string_utils.h
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_STRING_UTILS_H_
-#define TOOLS_GN_STRING_UTILS_H_
-
-#include "base/strings/string_piece.h"
-
-class Err;
-class Scope;
-class Token;
-class Value;
-
-inline std::string operator+(const std::string& a, const base::StringPiece& b) {
-  std::string ret;
-  ret.reserve(a.size() + b.size());
-  ret.assign(a);
-  ret.append(b.data(), b.size());
-  return ret;
-}
-
-inline std::string operator+(const base::StringPiece& a, const std::string& b) {
-  std::string ret;
-  ret.reserve(a.size() + b.size());
-  ret.assign(a.data(), a.size());
-  ret.append(b);
-  return ret;
-}
-
-// Unescapes and expands variables in the given literal, writing the result
-// to the given value. On error, sets |err| and returns false.
-bool ExpandStringLiteral(Scope* scope,
-                         const Token& literal,
-                         Value* result,
-                         Err* err);
-
-// Removes the given prefix from the string. Asserts if the string does
-// not have the given prefix.
-//
-// Note: could potentially return a StringPiece into the str.
-std::string RemovePrefix(const std::string& str, const std::string& prefix);
-
-// Appends the given string piece to the given string. This avoids an
-// intermediate copy.
-inline void AppendStringPiece(std::string* dest,
-                              const base::StringPiece& piece) {
-  dest->append(piece.data(), piece.size());
-}
-
-#endif  // TOOLS_GN_STRING_UTILS_H_
diff --git a/tools/gn/string_utils_unittest.cc b/tools/gn/string_utils_unittest.cc
deleted file mode 100644
index 81181d27e676..000000000000
--- a/tools/gn/string_utils_unittest.cc
+++ /dev/null
@@ -1,71 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "testing/gtest/include/gtest/gtest.h"
-#include "tools/gn/err.h"
-#include "tools/gn/scope.h"
-#include "tools/gn/settings.h"
-#include "tools/gn/string_utils.h"
-#include "tools/gn/token.h"
-#include "tools/gn/value.h"
-
-namespace {
-
-bool CheckExpansionCase(const char* input, const char* expected, bool success) {
-  Scope scope(static_cast<const Settings*>(NULL));
-  scope.SetValue("one", Value(NULL, 1), NULL);
-  scope.SetValue("onestring", Value(NULL, "one"), NULL);
-
-  // Construct the string token, which includes the quotes.
-  std::string literal_string;
-  literal_string.push_back('"');
-  literal_string.append(input);
-  literal_string.push_back('"');
-  Token literal(Location(), Token::STRING, literal_string);
-
-  Value result(NULL, Value::STRING);
-  Err err;
-  bool ret = ExpandStringLiteral(&scope, literal, &result, &err);
-
-  // Err and return value should agree.
-  EXPECT_NE(ret, err.has_error());
-
-  if (ret != success)
-    return false;
-
-  if (!success)
-    return true;  // Don't check result on failure.
-  return result.string_value() == expected;
-}
-
-}  // namespace
-
-TEST(StringUtils, ExpandStringLiteral) {
-  EXPECT_TRUE(CheckExpansionCase("", "", true));
-  EXPECT_TRUE(CheckExpansionCase("hello", "hello", true));
-  EXPECT_TRUE(CheckExpansionCase("hello #$one", "hello #1", true));
-  EXPECT_TRUE(CheckExpansionCase("hello #$one/two", "hello #1/two", true));
-  EXPECT_TRUE(CheckExpansionCase("hello #${one}", "hello #1", true));
-  EXPECT_TRUE(CheckExpansionCase("hello #${one}one", "hello #1one", true));
-  EXPECT_TRUE(CheckExpansionCase("hello #${one}$one", "hello #11", true));
-  EXPECT_TRUE(CheckExpansionCase("$onestring${one}$one", "one11", true));
-
-  // Errors
-  EXPECT_TRUE(CheckExpansionCase("hello #$", NULL, false));
-  EXPECT_TRUE(CheckExpansionCase("hello #$%", NULL, false));
-  EXPECT_TRUE(CheckExpansionCase("hello #${", NULL, false));
-  EXPECT_TRUE(CheckExpansionCase("hello #${}", NULL, false));
-  EXPECT_TRUE(CheckExpansionCase("hello #$nonexistant", NULL, false));
-  EXPECT_TRUE(CheckExpansionCase("hello #${unterminated", NULL, false));
-
-  // Unknown backslash values aren't special.
-  EXPECT_TRUE(CheckExpansionCase("\\", "\\", true));
-  EXPECT_TRUE(CheckExpansionCase("\\b", "\\b", true));
-
-  // Backslashes escape some special things. \"\$\\ -> "$\  Note that gtest
-  // doesn't like this escape sequence so we have to put it out-of-line.
-  const char* in = "\\\"\\$\\\\";
-  const char* out = "\"$\\";
-  EXPECT_TRUE(CheckExpansionCase(in, out, true));
-}
diff --git a/tools/gn/target.cc b/tools/gn/target.cc
deleted file mode 100644
index 0936f22ba3ae..000000000000
--- a/tools/gn/target.cc
+++ /dev/null
@@ -1,94 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/target.h"
-
-#include "base/bind.h"
-#include "tools/gn/scheduler.h"
-
-namespace {
-
-void TargetResolvedThunk(const base::Callback<void(const Target*)>& cb,
-                         const Target* t) {
-  cb.Run(t);
-}
-
-}  // namespace
-
-Target::Target(const Settings* settings, const Label& label)
-    : Item(label),
-      settings_(settings),
-      output_type_(NONE),
-      generated_(false),
-      generator_function_(NULL) {
-}
-
-Target::~Target() {
-}
-
-Target* Target::AsTarget() {
-  return this;
-}
-
-const Target* Target::AsTarget() const {
-  return this;
-}
-
-void Target::OnResolved() {
-  // Gather info from our dependents we need.
-  for (size_t dep = 0; dep < deps_.size(); dep++) {
-    // All dependent configs get pulled to us, and to our dependents.
-    const std::vector<const Config*>& all =
-        deps_[dep]->all_dependent_configs();
-    for (size_t i = 0; i < all.size(); i++) {
-      configs_.push_back(all[i]);
-      all_dependent_configs_.push_back(all[i]);
-    }
-
-    // Direct dependent configs get pulled only to us.
-    const std::vector<const Config*>& direct =
-        deps_[dep]->direct_dependent_configs();
-    for (size_t i = 0; i < direct.size(); i++)
-      configs_.push_back(direct[i]);
-
-    // Direct dependent libraries.
-    if (deps_[dep]->output_type() == STATIC_LIBRARY ||
-        deps_[dep]->output_type() == SHARED_LIBRARY ||
-        deps_[dep]->output_type() == LOADABLE_MODULE)
-      inherited_libraries_.insert(deps_[dep]);
-
-    // Inherited libraries. DOn't pull transitive libraries from shared
-    // libraries, since obviously those shouldn't be linked directly into
-    // later deps unless explicitly specified.
-    if (deps_[dep]->output_type() != SHARED_LIBRARY &&
-        deps_[dep]->output_type() != LOADABLE_MODULE &&
-        deps_[dep]->output_type() != EXECUTABLE) {
-      const std::set<const Target*> inherited =
-          deps_[dep]->inherited_libraries();
-      for (std::set<const Target*>::const_iterator i = inherited.begin();
-           i != inherited.end(); ++i)
-        inherited_libraries_.insert(*i);
-    }
-  }
-
-  if (!settings_->build_settings()->target_resolved_callback().is_null()) {
-    g_scheduler->ScheduleWork(base::Bind(&TargetResolvedThunk,
-        settings_->build_settings()->target_resolved_callback(),
-        this));
-  }
-}
-
-bool Target::HasBeenGenerated() const {
-  return generated_;
-}
-
-void Target::SetGenerated(const Token* token) {
-  DCHECK(!generated_);
-  generated_ = true;
-  generator_function_ = token;
-}
-
-bool Target::IsLinkable() const {
-  return output_type_ == STATIC_LIBRARY || output_type_ == SHARED_LIBRARY;
-}
diff --git a/tools/gn/target.h b/tools/gn/target.h
deleted file mode 100644
index 63d62ae27174..000000000000
--- a/tools/gn/target.h
+++ /dev/null
@@ -1,145 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_TARGET_H_
-#define TOOLS_GN_TARGET_H_
-
-#include <set>
-#include <string>
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/compiler_specific.h"
-#include "base/logging.h"
-#include "base/strings/string_piece.h"
-#include "base/synchronization/lock.h"
-#include "tools/gn/config_values.h"
-#include "tools/gn/item.h"
-#include "tools/gn/source_file.h"
-
-class InputFile;
-class Settings;
-class Token;
-
-class Target : public Item {
- public:
-  enum OutputType {
-    NONE,
-    EXECUTABLE,
-    SHARED_LIBRARY,
-    STATIC_LIBRARY,
-    LOADABLE_MODULE,
-    COPY_FILES,
-    CUSTOM,
-  };
-  typedef std::vector<SourceFile> FileList;
-  typedef std::vector<std::string> StringVector;
-
-  Target(const Settings* settings, const Label& label);
-  virtual ~Target();
-
-  // Item overrides.
-  virtual Target* AsTarget() OVERRIDE;
-  virtual const Target* AsTarget() const OVERRIDE;
-  virtual void OnResolved() OVERRIDE;
-
-  // This flag indicates if we've run the TargetGenerator for this target to
-  // fill out the rest of the values. Once we've done this, we save the
-  // location of the function that started the generating so that we can detect
-  // duplicate declarations.
-  bool HasBeenGenerated() const;
-  void SetGenerated(const Token* token);
-
-  const Settings* settings() const { return settings_; }
-
-  OutputType output_type() const { return output_type_; }
-  void set_output_type(OutputType t) { output_type_ = t; }
-
-  bool IsLinkable() const;
-
-  const FileList& sources() const { return sources_; }
-  void swap_in_sources(FileList* s) { sources_.swap(*s); }
-
-  const FileList& data() const { return data_; }
-  void swap_in_data(FileList* d) { data_.swap(*d); }
-
-  const std::vector<const Target*>& deps() const { return deps_; }
-  void swap_in_deps(std::vector<const Target*>* d) { deps_.swap(*d); }
-
-  // List of configs that this class inherits settings from.
-  const std::vector<const Config*>& configs() const { return configs_; }
-  void swap_in_configs(std::vector<const Config*>* c) { configs_.swap(*c); }
-
-  // List of configs that all dependencies (direct and indirect) of this
-  // target get. These configs are not added to this target.
-  const std::vector<const Config*>& all_dependent_configs() const {
-    return all_dependent_configs_;
-  }
-  void swap_in_all_dependent_configs(std::vector<const Config*>* c) {
-    all_dependent_configs_.swap(*c);
-  }
-
-  // List of configs that targets depending directly on this one get. These
-  // configs are not added to this target.
-  const std::vector<const Config*>& direct_dependent_configs() const {
-    return direct_dependent_configs_;
-  }
-  void swap_in_direct_dependent_configs(std::vector<const Config*>* c) {
-    direct_dependent_configs_.swap(*c);
-  }
-
-  const std::set<const Target*>& inherited_libraries() const {
-    return inherited_libraries_;
-  }
-
-  // This config represents the configuration set directly on this target.
-  ConfigValues& config_values() { return config_values_; }
-  const ConfigValues& config_values() const { return config_values_; }
-
-  const SourceDir& destdir() const { return destdir_; }
-  void set_destdir(const SourceDir& d) { destdir_ = d; }
-
-  const SourceFile& script() const { return script_; }
-  void set_script(const SourceFile& s) { script_ = s; }
-
-  const std::vector<std::string>& script_args() const { return script_args_; }
-  void swap_in_script_args(std::vector<std::string>* sa) {
-    script_args_.swap(*sa);
-  }
-
-  const FileList& outputs() const { return outputs_; }
-  void swap_in_outputs(FileList* s) { outputs_.swap(*s); }
-
- private:
-  const Settings* settings_;
-  OutputType output_type_;
-
-  FileList sources_;
-  FileList data_;
-  std::vector<const Target*> deps_;
-  std::vector<const Config*> configs_;
-  std::vector<const Config*> all_dependent_configs_;
-  std::vector<const Config*> direct_dependent_configs_;
-
-  // Libraries from transitive deps. Libraries need to be linked only
-  // with the end target (executable, shared library). These do not get
-  // pushed beyond shared library boundaries.
-  std::set<const Target*> inherited_libraries_;
-
-  ConfigValues config_values_;
-
-  SourceDir destdir_;
-
-  // Script target stuff.
-  SourceFile script_;
-  std::vector<std::string> script_args_;
-  FileList outputs_;
-
-  bool generated_;
-  const Token* generator_function_;  // Who generated this: for error messages.
-
-  DISALLOW_COPY_AND_ASSIGN(Target);
-};
-
-#endif  // TOOLS_GN_TARGET_H_
diff --git a/tools/gn/target_generator.cc b/tools/gn/target_generator.cc
deleted file mode 100644
index 90c8fe65e33c..000000000000
--- a/tools/gn/target_generator.cc
+++ /dev/null
@@ -1,334 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/target_generator.h"
-
-#include "base/files/file_path.h"
-#include "base/logging.h"
-#include "tools/gn/build_settings.h"
-#include "tools/gn/config.h"
-#include "tools/gn/config_values_generator.h"
-#include "tools/gn/err.h"
-#include "tools/gn/filesystem_utils.h"
-#include "tools/gn/functions.h"
-#include "tools/gn/input_file.h"
-#include "tools/gn/item_node.h"
-#include "tools/gn/ninja_target_writer.h"
-#include "tools/gn/parse_tree.h"
-#include "tools/gn/scheduler.h"
-#include "tools/gn/scope.h"
-#include "tools/gn/target_manager.h"
-#include "tools/gn/token.h"
-#include "tools/gn/value.h"
-#include "tools/gn/value_extractors.h"
-
-namespace {
-
-bool TypeHasConfigs(Target::OutputType type) {
-  return type == Target::EXECUTABLE ||
-         type == Target::SHARED_LIBRARY ||
-         type == Target::STATIC_LIBRARY ||
-         type == Target::LOADABLE_MODULE;
-}
-
-bool TypeHasConfigValues(Target::OutputType type) {
-  return type == Target::EXECUTABLE ||
-         type == Target::SHARED_LIBRARY ||
-         type == Target::STATIC_LIBRARY ||
-         type == Target::LOADABLE_MODULE;
-}
-
-bool TypeHasSources(Target::OutputType type) {
-  return type != Target::NONE;
-}
-
-bool TypeHasData(Target::OutputType type) {
-  return type != Target::NONE;
-}
-
-bool TypeHasDestDir(Target::OutputType type) {
-  return type == Target::COPY_FILES;
-}
-
-bool TypeHasOutputs(Target::OutputType type) {
-  return type == Target::CUSTOM;
-}
-
-}  // namespace
-
-TargetGenerator::TargetGenerator(Target* target,
-                                 Scope* scope,
-                                 const Token& function_token,
-                                 const std::vector<Value>& args,
-                                 const std::string& output_type,
-                                 Err* err)
-    : target_(target),
-      scope_(scope),
-      function_token_(function_token),
-      args_(args),
-      output_type_(output_type),
-      err_(err),
-      input_directory_(function_token.location().file()->dir()) {
-}
-
-TargetGenerator::~TargetGenerator() {
-}
-
-void TargetGenerator::Run() {
-  // Output type.
-  Target::OutputType output_type = GetOutputType();
-  target_->set_output_type(output_type);
-  if (err_->has_error())
-    return;
-
-  if (TypeHasConfigs(output_type)) {
-    FillConfigs();
-    FillAllDependentConfigs();
-    FillDirectDependentConfigs();
-  }
-  if (TypeHasSources(output_type))
-    FillSources();
-  if (TypeHasData(output_type))
-    FillData();
-  if (output_type == Target::CUSTOM) {
-    FillScript();
-    FillScriptArgs();
-  }
-  if (TypeHasOutputs(output_type))
-    FillOutputs();
-  FillDependencies();  // All types have dependencies.
-
-  if (TypeHasConfigValues(output_type)) {
-    ConfigValuesGenerator gen(&target_->config_values(), scope_,
-                              function_token_, input_directory_, err_);
-    gen.Run();
-    if (err_->has_error())
-      return;
-  }
-
-  if (TypeHasDestDir(output_type))
-    FillDestDir();
-
-  // Set the toolchain as a dependency of the target.
-  // TODO(brettw) currently we lock separately for each config, dep, and
-  // toolchain we add which is bad! Do this in one lock.
-  {
-    ItemTree* tree = &GetBuildSettings()->item_tree();
-    base::AutoLock lock(tree->lock());
-    ItemNode* tc_node =
-        tree->GetExistingNodeLocked(ToolchainLabelForScope(scope_));
-    tree->GetExistingNodeLocked(target_->label())->AddDependency(tc_node);
-  }
-
-  target_->SetGenerated(&function_token_);
-  GetBuildSettings()->target_manager().TargetGenerationComplete(
-      target_->label());
-}
-
-// static
-void TargetGenerator::GenerateTarget(Scope* scope,
-                                     const Token& function_token,
-                                     const std::vector<Value>& args,
-                                     const std::string& output_type,
-                                     Err* err) {
-  // Name is the argument to the function.
-  if (args.size() != 1u || args[0].type() != Value::STRING) {
-    *err = Err(function_token,
-        "Target generator requires one string argument.",
-        "Otherwise I'm not sure what to call this target.");
-    return;
-  }
-
-  // The location of the target is the directory name with no slash at the end.
-  // FIXME(brettw) validate name.
-  const Label& toolchain_label = ToolchainLabelForScope(scope);
-  Label label(function_token.location().file()->dir(),
-              args[0].string_value(),
-              toolchain_label.dir(), toolchain_label.name());
-
-  if (g_scheduler->verbose_logging())
-    g_scheduler->Log("Generating target", label.GetUserVisibleName(true));
-
-  Target* t = scope->settings()->build_settings()->target_manager().GetTarget(
-      label, function_token.range(), NULL, err);
-  if (err->has_error())
-    return;
-
-  TargetGenerator gen(t, scope, function_token, args, output_type, err);
-  gen.Run();
-}
-
-Target::OutputType TargetGenerator::GetOutputType() const {
-  if (output_type_ == functions::kGroup)
-    return Target::NONE;
-  if (output_type_ == functions::kExecutable)
-    return Target::EXECUTABLE;
-  if (output_type_ == functions::kSharedLibrary)
-    return Target::SHARED_LIBRARY;
-  if (output_type_ == functions::kStaticLibrary)
-    return Target::STATIC_LIBRARY;
-  // TODO(brettw) what does loadable module mean?
-  //if (output_type_ == ???)
-  //  return Target::LOADABLE_MODULE;
-  if (output_type_ == functions::kCopy)
-    return Target::COPY_FILES;
-  if (output_type_ == functions::kCustom)
-    return Target::CUSTOM;
-
-  *err_ = Err(function_token_, "Not a known output type",
-              "I am very confused.");
-  return Target::NONE;
-}
-
-void TargetGenerator::FillGenericConfigs(
-    const char* var_name,
-    void (Target::*setter)(std::vector<const Config*>*)) {
-  const Value* value = scope_->GetValue(var_name, true);
-  if (!value)
-    return;
-
-  std::vector<Label> labels;
-  if (!ExtractListOfLabels(*value, input_directory_,
-                           ToolchainLabelForScope(scope_), &labels, err_))
-    return;
-
-  std::vector<const Config*> dest_configs;
-  dest_configs.resize(labels.size());
-  for (size_t i = 0; i < labels.size(); i++) {
-    dest_configs[i] = Config::GetConfig(
-        scope_->settings(),
-        value->list_value()[i].origin()->GetRange(),
-        labels[i], target_, err_);
-    if (err_->has_error())
-      return;
-  }
-  (target_->*setter)(&dest_configs);
-}
-
-void TargetGenerator::FillConfigs() {
-  FillGenericConfigs("configs", &Target::swap_in_configs);
-}
-
-void TargetGenerator::FillAllDependentConfigs() {
-  FillGenericConfigs("all_dependent_configs",
-                     &Target::swap_in_all_dependent_configs);
-}
-
-void TargetGenerator::FillDirectDependentConfigs() {
-  FillGenericConfigs("direct_dependent_configs",
-                     &Target::swap_in_direct_dependent_configs);
-}
-
-void TargetGenerator::FillSources() {
-  const Value* value = scope_->GetValue("sources", true);
-  if (!value)
-    return;
-
-  Target::FileList dest_sources;
-  if (!ExtractListOfRelativeFiles(*value, input_directory_, &dest_sources,
-                                  err_))
-    return;
-  target_->swap_in_sources(&dest_sources);
-}
-
-void TargetGenerator::FillData() {
-  const Value* value = scope_->GetValue("data", true);
-  if (!value)
-    return;
-
-  Target::FileList dest_data;
-  if (!ExtractListOfRelativeFiles(*value, input_directory_, &dest_data,
-                                  err_))
-    return;
-  target_->swap_in_data(&dest_data);
-}
-
-void TargetGenerator::FillDependencies() {
-  const Value* value = scope_->GetValue("deps", true);
-  if (!value)
-    return;
-
-  std::vector<Label> labels;
-  if (!ExtractListOfLabels(*value, input_directory_,
-                           ToolchainLabelForScope(scope_), &labels, err_))
-    return;
-
-  std::vector<const Target*> dest_deps;
-  dest_deps.resize(labels.size());
-  for (size_t i = 0; i < labels.size(); i++) {
-    dest_deps[i] = GetBuildSettings()->target_manager().GetTarget(
-        labels[i], value->list_value()[i].origin()->GetRange(), target_, err_);
-    if (err_->has_error())
-      return;
-  }
-
-  target_->swap_in_deps(&dest_deps);
-}
-
-void TargetGenerator::FillDestDir() {
-  // Destdir is required for all targets that use it.
-  const Value* value = scope_->GetValue("destdir", true);
-  if (!value) {
-    *err_ = Err(function_token_, "This target type requires a \"destdir\".");
-    return;
-  }
-  if (!value->VerifyTypeIs(Value::STRING, err_))
-    return;
-
-  if (!EnsureStringIsInOutputDir(
-          GetBuildSettings()->build_dir(),
-          value->string_value(), *value, err_))
-    return;
-  target_->set_destdir(SourceDir(value->string_value()));
-}
-
-void TargetGenerator::FillScript() {
-  // If this gets called, the target type requires a script, so error out
-  // if it doesn't have one.
-  const Value* value = scope_->GetValue("script", true);
-  if (!value) {
-    *err_ = Err(function_token_, "This target type requires a \"script\".");
-    return;
-  }
-  if (!value->VerifyTypeIs(Value::STRING, err_))
-    return;
-
-  target_->set_script(
-      input_directory_.ResolveRelativeFile(value->string_value()));
-}
-
-void TargetGenerator::FillScriptArgs() {
-  const Value* value = scope_->GetValue("args", true);
-  if (!value)
-    return;
-
-  std::vector<std::string> args;
-  if (!ExtractListOfStringValues(*value, &args, err_))
-    return;
-  target_->swap_in_script_args(&args);
-}
-
-void TargetGenerator::FillOutputs() {
-  const Value* value = scope_->GetValue("outputs", true);
-  if (!value)
-    return;
-
-  Target::FileList outputs;
-  if (!ExtractListOfRelativeFiles(*value, input_directory_, &outputs, err_))
-    return;
-
-  // Validate that outputs are in the output dir.
-  CHECK(outputs.size() == value->list_value().size());
-  for (size_t i = 0; i < outputs.size(); i++) {
-    if (!EnsureStringIsInOutputDir(
-            GetBuildSettings()->build_dir(),
-            outputs[i].value(), value->list_value()[i], err_))
-      return;
-  }
-  target_->swap_in_outputs(&outputs);
-}
-
-const BuildSettings* TargetGenerator::GetBuildSettings() const {
-  return scope_->settings()->build_settings();
-}
diff --git a/tools/gn/target_generator.h b/tools/gn/target_generator.h
deleted file mode 100644
index 11e920ceadbc..000000000000
--- a/tools/gn/target_generator.h
+++ /dev/null
@@ -1,83 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_TARGET_GENERATOR_H_
-#define TOOLS_GN_TARGET_GENERATOR_H_
-
-#include <string>
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/gtest_prod_util.h"
-#include "base/memory/scoped_ptr.h"
-#include "tools/gn/source_dir.h"
-#include "tools/gn/target.h"
-
-class BuildSettings;
-class Err;
-class Location;
-class Scope;
-class Token;
-class Value;
-
-// Creates Target objects from a Scope (the result of a script execution).
-class TargetGenerator {
- public:
-  TargetGenerator(Target* target,
-                  Scope* scope,
-                  const Token& function_token,
-                  const std::vector<Value>& args,
-                  const std::string& output_type,
-                  Err* err);
-  ~TargetGenerator();
-
-  void Run();
-
-  // The function token is the token of the function name of the generator for
-  // this target. err() will be set on failure.
-  static void GenerateTarget(Scope* scope,
-                             const Token& function_token,
-                             const std::vector<Value>& args,
-                             const std::string& output_type,
-                             Err* err);
-
- private:
-  // Sets err_ on failure.
-  Target::OutputType GetOutputType() const;
-
-  // Reads configs from the given var name, and uses the given setting on the
-  // target to save them
-  void FillGenericConfigs(const char* var_name,
-                          void (Target::*setter)(std::vector<const Config*>*));
-
-  void FillConfigs();
-  void FillAllDependentConfigs();
-  void FillDirectDependentConfigs();
-  void FillSources();
-  void FillData();
-  void FillDependencies();
-  void FillDestDir();
-  void FillScript();
-  void FillScriptArgs();
-  void FillOutputs();
-
-  const BuildSettings* GetBuildSettings() const;
-
-  Target* target_;
-  Scope* scope_;
-  const Token& function_token_;
-  std::vector<Value> args_;
-  std::string output_type_;
-  Err* err_;
-
-  // Sources are relative to this. This comes from the input file which doesn't
-  // get freed so we don't acautlly have to make a copy.
-  const SourceDir& input_directory_;
-
-  FRIEND_TEST_ALL_PREFIXES(TargetGenerator, ResolveInputPath);
-
-  DISALLOW_COPY_AND_ASSIGN(TargetGenerator);
-};
-
-#endif  // TOOLS_GN_TARGET_GENERATOR_H_
diff --git a/tools/gn/target_generator_unittest.cc b/tools/gn/target_generator_unittest.cc
deleted file mode 100644
index feef6a96912e..000000000000
--- a/tools/gn/target_generator_unittest.cc
+++ /dev/null
@@ -1,8 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "testing/gtest/include/gtest/gtest.h"
-#include "tools/gn/filesystem_utils.h"
-#include "tools/gn/target_generator.h"
-
diff --git a/tools/gn/target_manager.cc b/tools/gn/target_manager.cc
deleted file mode 100644
index ece9f08583c6..000000000000
--- a/tools/gn/target_manager.cc
+++ /dev/null
@@ -1,134 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/target_manager.h"
-
-#include <deque>
-
-#include "base/bind.h"
-#include "base/strings/string_piece.h"
-#include "tools/gn/build_settings.h"
-#include "tools/gn/err.h"
-#include "tools/gn/filesystem_utils.h"
-#include "tools/gn/item_node.h"
-#include "tools/gn/scheduler.h"
-#include "tools/gn/toolchain_manager.h"
-#include "tools/gn/value.h"
-
-TargetManager::TargetManager(const BuildSettings* build_settings)
-    : build_settings_(build_settings) {
-}
-
-TargetManager::~TargetManager() {
-}
-
-Target* TargetManager::GetTarget(const Label& label,
-                                 const LocationRange& specified_from_here,
-                                 Target* dep_from,
-                                 Err* err) {
-  DCHECK(!label.is_null());
-  DCHECK(!label.toolchain_dir().value().empty());
-  DCHECK(!label.toolchain_name().empty());
-
-  base::AutoLock lock(build_settings_->item_tree().lock());
-
-  ItemNode* target_node =
-      build_settings_->item_tree().GetExistingNodeLocked(label);
-  Target* target = NULL;
-  if (!target_node) {
-    // First time we've seen this, may need to load the file.
-
-    // Compute the settings. The common case is that we have a dep_from and
-    // the toolchains match, so we can use the settings from there rather than
-    // querying the toolchain manager (which requires locking, etc.).
-    const Settings* settings;
-    if (dep_from && dep_from->label().ToolchainsEqual(label)) {
-      settings = dep_from->settings();
-    } else {
-      settings =
-          build_settings_->toolchain_manager().GetSettingsForToolchainLocked(
-              specified_from_here, label.GetToolchainLabel(), err);
-      if (!settings)
-        return NULL;
-    }
-
-    target = new Target(settings, label);
-    target_node = new ItemNode(target);
-    target_node->set_originally_referenced_from_here(specified_from_here);
-    build_settings_->item_tree().AddNodeLocked(target_node);
-
-    // We're generating a node when there is no referencing one.
-    if (!dep_from)
-      target_node->set_generated_from_here(specified_from_here);
-
-    // Only schedule loading the given target if somebody is depending on it
-    // (and we optimize by not re-asking it to run the current file).
-    // Otherwise, we're probably generating it right now.
-    if (dep_from && dep_from->label().dir() != label.dir()) {
-      if (!ScheduleInvocationLocked(specified_from_here, label, err))
-        return NULL;
-    }
-  } else if ((target = target_node->item()->AsTarget())) {
-    // Previously saw this item as a target.
-
-    // If we have no dep_from, we're generating it.
-    if (!dep_from) {
-      // In this case, it had better not already be generated.
-      if (target_node->state() != ItemNode::REFERENCED) {
-        *err = Err(specified_from_here,
-                   "Duplicate target.",
-                   "\"" + label.GetUserVisibleName(true) +
-                   "\" being defined here.");
-        err->AppendSubErr(Err(target_node->generated_from_here(),
-                              "Originally defined here."));
-        return NULL;
-      } else {
-        target_node->set_generated_from_here(specified_from_here);
-      }
-    }
-  } else {
-    // Error, we previously saw this thing as a non-target.
-    *err = Err(specified_from_here, "Not previously a target.",
-        "The target being declared here was previously seen referenced as a\n"
-        "non-target (like a config)");
-    err->AppendSubErr(Err(target_node->originally_referenced_from_here(),
-                          "Originally referenced from here."));
-    return NULL;
-  }
-
-  // Keep a record of the guy asking us for this dependency. We know if
-  // somebody is adding a dependency, that guy it himself not resolved.
-  if (dep_from && target_node->state() != ItemNode::RESOLVED) {
-    build_settings_->item_tree().GetExistingNodeLocked(
-        dep_from->label())->AddDependency(target_node);
-  }
-
-  return target;
-}
-
-void TargetManager::TargetGenerationComplete(const Label& label) {
-  base::AutoLock lock(build_settings_->item_tree().lock());
-  build_settings_->item_tree().MarkItemGeneratedLocked(label);
-}
-
-void TargetManager::GetAllTargets(
-    std::vector<const Target*>* all_targets) const {
-  base::AutoLock lock(build_settings_->item_tree().lock());
-
-  std::vector<const Item*> all_items;
-  build_settings_->item_tree().GetAllItemsLocked(&all_items);
-  for (size_t i = 0; i < all_items.size(); i++) {
-    const Target* t = all_items[i]->AsTarget();
-    if (t)
-      all_targets->push_back(t);
-  }
-}
-
-bool TargetManager::ScheduleInvocationLocked(
-    const LocationRange& specified_from_here,
-    const Label& label,
-    Err* err) {
-  return build_settings_->toolchain_manager().ScheduleInvocationLocked(
-        specified_from_here, label.GetToolchainLabel(), label.dir(), err);
-}
diff --git a/tools/gn/target_manager.h b/tools/gn/target_manager.h
deleted file mode 100644
index 2dd2aed7bee1..000000000000
--- a/tools/gn/target_manager.h
+++ /dev/null
@@ -1,73 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_TARGET_MANAGER_H_
-#define TOOLS_GN_TARGET_MANAGER_H_
-
-#include <set>
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/containers/hash_tables.h"
-#include "base/synchronization/lock.h"
-#include "tools/gn/target.h"
-
-class BuildSettings;
-class Err;
-class ItemTree;
-class LocationRange;
-class ToolchainManager;
-class Value;
-
-// Manages all the targets in the system. This integrates with the ItemTree
-// to manage the target-specific rules and creation.
-//
-// This class is threadsafe.
-class TargetManager {
- public:
-  explicit TargetManager(const BuildSettings* settings);
-  ~TargetManager();
-
-  // Gets a reference to a named target. The given target name is created if
-  // it doesn't exist.
-  //
-  // The label should be fully specified in that it should include an
-  // explicit toolchain.
-  //
-  // |specified_from_here| should indicate the dependency or the target
-  // generator causing this access for error message generation.
-  //
-  // |dep_from| should be set when a target is getting a dep that it depends
-  // on. |dep_from| indicates the target that specified the dependency. It
-  // will be used to track outstanding dependencies so we can know when the
-  // target and all of its dependencies are complete. It should be null when
-  // getting a target for other reasons.
-  //
-  // On failure, |err| will be set.
-  //
-  // The returned pointer must not be dereferenced until it's generated, since
-  // it could be being generated on another thread.
-  Target* GetTarget(const Label& label,
-                    const LocationRange& specified_from_here,
-                    Target* dep_from,
-                    Err* err);
-
-  // Called by a target when it has been loaded from the .gin file. Its
-  // dependencies may or may not be resolved yet.
-  void TargetGenerationComplete(const Label& label);
-
-  // Returns a list of all targets.
-  void GetAllTargets(std::vector<const Target*>* all_targets) const;
-
- private:
-  bool ScheduleInvocationLocked(const LocationRange& specified_from_here,
-                                const Label& label,
-                                Err* err);
-
-  const BuildSettings* build_settings_;
-
-  DISALLOW_COPY_AND_ASSIGN(TargetManager);
-};
-
-#endif  // TOOLS_GN_TARGET_MANAGER_H
diff --git a/tools/gn/target_manager_unittest.cc b/tools/gn/target_manager_unittest.cc
deleted file mode 100644
index a1a3ad219b86..000000000000
--- a/tools/gn/target_manager_unittest.cc
+++ /dev/null
@@ -1,95 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "testing/gtest/include/gtest/gtest.h"
-#include "tools/gn/err.h"
-#include "tools/gn/settings.h"
-#include "tools/gn/target_manager.h"
-#include "tools/gn/value.h"
-
-/* TODO(brettw) make this compile again
-namespace {
-
-class TestTargetManagerDelegate : public TargetManager::Delegate {
- public:
-  TestTargetManagerDelegate() {}
-
-  virtual bool ScheduleInvocation(ToolchainManager* toolchain_manager,
-                                  const LocationRange& origin,
-                                  const Label& toolchain_name,
-                                  const SourceDir& dir,
-                                  Err* err) OVERRIDE {
-    invokes.push_back(dir.value());
-    return true;
-  }
-  virtual void ScheduleTargetFileWrite(const Target* target) {
-    writes.push_back(target);
-  }
-
-  std::vector<std::string> invokes;
-  std::vector<const Target*> writes;
-};
-
-}  // namespace
-
-TEST(TargetManager, ResolveDeps) {
-  TestTargetManagerDelegate ttmd;
-  BuildSettings build_settings(&ttmd);
-
-  TargetManager& target_manager = build_settings.target_manager();
-
-  SourceDir tc_dir("/chrome/");
-  std::string tc_name("toolchain");
-
-  // Get a root target. This should not invoke anything.
-  Err err;
-  Label chromelabel(SourceDir("/chrome/"), "chrome", tc_dir, tc_name);
-  Target* chrome = target_manager.GetTarget(
-      chromelabel, LocationRange(), NULL, &err);
-  EXPECT_EQ(0u, ttmd.invokes.size());
-
-  // Declare it has a dependency on content1 and 2. We should get one
-  // invocation of the content build file.
-  Label content1label(SourceDir("/content/"), "content1", tc_dir, tc_name);
-  Target* content1 = target_manager.GetTarget(
-      content1label, LocationRange(), chrome, &err);
-  EXPECT_EQ(1u, ttmd.invokes.size());
-
-  Label content2label(SourceDir("/content/"), "content2", tc_dir, tc_name);
-  Target* content2 = target_manager.GetTarget(
-      content2label, LocationRange(), chrome, &err);
-  EXPECT_EQ(2u, ttmd.invokes.size());
-
-  // Declare chrome has a depdency on base, this should load it.
-  Label baselabel(SourceDir("/base/"), "base", tc_dir, tc_name);
-  Target* base1 = target_manager.GetTarget(
-      baselabel, LocationRange(), chrome, &err);
-  EXPECT_EQ(3u, ttmd.invokes.size());
-
-  // Declare content1 has a dependency on base.
-  Target* base2 = target_manager.GetTarget(
-      baselabel, LocationRange(), content1, &err);
-  EXPECT_EQ(3u, ttmd.invokes.size());
-  EXPECT_EQ(base1, base2);
-
-  // Mark content1 and chrome as done. They have unresolved depdendencies so
-  // shouldn't be written out yet.
-  target_manager.TargetGenerationComplete(content1label);
-  target_manager.TargetGenerationComplete(chromelabel);
-  EXPECT_EQ(0u, ttmd.writes.size());
-
-  // Mark content2 as done. It has no dependencies so should be written.
-  target_manager.TargetGenerationComplete(content2label);
-  ASSERT_EQ(1u, ttmd.writes.size());
-  EXPECT_EQ(content2label, ttmd.writes[0]->label());
-
-  // Mark base as complete. It should have caused itself, content1 and then
-  // chrome to be written.
-  target_manager.TargetGenerationComplete(baselabel);
-  ASSERT_EQ(4u, ttmd.writes.size());
-  EXPECT_EQ(baselabel, ttmd.writes[1]->label());
-  EXPECT_EQ(content1label, ttmd.writes[2]->label());
-  EXPECT_EQ(chromelabel, ttmd.writes[3]->label());
-}
-*/
diff --git a/tools/gn/token.cc b/tools/gn/token.cc
deleted file mode 100644
index cbce5e75d070..000000000000
--- a/tools/gn/token.cc
+++ /dev/null
@@ -1,60 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/token.h"
-
-#include "base/logging.h"
-
-namespace {
-
-std::string UnescapeString(const base::StringPiece& input) {
-  std::string result;
-  result.reserve(input.size());
-
-  for (size_t i = 0; i < input.size(); i++) {
-    if (input[i] == '\\') {
-      DCHECK(i < input.size() - 1);  // Last char shouldn't be a backslash or
-                                     // it would have escaped the terminator.
-      i++;  // Skip backslash, next char is a literal.
-    }
-    result.push_back(input[i]);
-  }
-  return result;
-}
-
-}  // namespace
-
-Token::Token() : type_(INVALID), value_() {
-}
-
-Token::Token(const Location& location,
-             Type t,
-             const base::StringPiece& v)
-    : type_(t),
-      value_(v),
-      location_(location) {
-}
-
-bool Token::IsIdentifierEqualTo(const char* v) const {
-  return type_ == IDENTIFIER && value_ == v;
-}
-
-bool Token::IsOperatorEqualTo(const char* v) const {
-  return type_ == OPERATOR && value_ == v;
-}
-
-bool Token::IsScoperEqualTo(const char* v) const {
-  return type_ == SCOPER && value_ == v;
-}
-
-bool Token::IsStringEqualTo(const char* v) const {
-  return type_ == STRING && value_ == v;
-}
-
-std::string Token::StringValue() const {
-  DCHECK(type() == STRING);
-
-  // Trim off the string terminators at the end.
-  return UnescapeString(value_.substr(1, value_.size() - 2));
-}
diff --git a/tools/gn/token.h b/tools/gn/token.h
deleted file mode 100644
index 64b06ea13e0f..000000000000
--- a/tools/gn/token.h
+++ /dev/null
@@ -1,52 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_TOKEN_H_
-#define TOOLS_GN_TOKEN_H_
-
-#include "base/strings/string_piece.h"
-#include "tools/gn/location.h"
-
-class Token {
- public:
-  enum Type {
-    INVALID,
-    INTEGER,    // 123
-    STRING,     // "blah"
-    OPERATOR,   // =, +=, -=, +, -, ==, !=, <=, >=, <, >
-    IDENTIFIER, // foo
-    SCOPER,     // (, ), [, ], {, }
-    SEPARATOR,  // ,
-    COMMENT     // #...\n
-  };
-
-  Token();
-  Token(const Location& location, Type t, const base::StringPiece& v);
-
-  Type type() const { return type_; }
-  const base::StringPiece& value() const { return value_; }
-  const Location& location() const { return location_; }
-  LocationRange range() const {
-    return LocationRange(location_,
-                         Location(location_.file(), location_.line_number(),
-                                  location_.char_offset() + value_.size()));
-  }
-
-  // Helper functions for comparing this token to something.
-  bool IsIdentifierEqualTo(const char* v) const;
-  bool IsOperatorEqualTo(const char* v) const;
-  bool IsScoperEqualTo(const char* v) const;
-  bool IsStringEqualTo(const char* v) const;
-
-  // For STRING tokens, returns the string value (no quotes at end, does
-  // unescaping).
-  std::string StringValue() const;
-
- private:
-  Type type_;
-  base::StringPiece value_;
-  Location location_;
-};
-
-#endif  // TOOLS_GN_TOKEN_H_
diff --git a/tools/gn/tokenizer.cc b/tools/gn/tokenizer.cc
deleted file mode 100644
index 971f56b820a7..000000000000
--- a/tools/gn/tokenizer.cc
+++ /dev/null
@@ -1,309 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/tokenizer.h"
-
-#include "base/logging.h"
-#include "tools/gn/input_file.h"
-
-namespace {
-
-bool IsNumberChar(char c) {
-  return c == '-' || (c >= '0' && c <= '9');
-}
-
-bool CouldBeTwoCharOperatorBegin(char c) {
-  return c == '<' || c == '>' || c == '!' || c == '=' || c == '-' ||
-         c == '+' || c == '|' || c == '&';
-}
-
-bool CouldBeTwoCharOperatorEnd(char c) {
-  return c == '=' || c == '|' || c == '&';
-}
-
-bool CouldBeOneCharOperator(char c) {
-  return c == '=' || c == '<' || c == '>' || c == '+' || c == '!' ||
-         c == ':' || c == '|' || c == '&' || c == '-';
-}
-
-bool CouldBeOperator(char c) {
-  return CouldBeOneCharOperator(c) || CouldBeTwoCharOperatorBegin(c);
-}
-
-bool IsSeparatorChar(char c) {
-  return c == ',';
-}
-
-bool IsScoperChar(char c) {
-  return c == '(' || c == ')' || c == '[' || c == ']' || c == '{' || c == '}';
-}
-
-}  // namespace
-
-Tokenizer::Tokenizer(const InputFile* input_file, Err* err)
-    : input_file_(input_file),
-      input_(input_file->contents()),
-      err_(err),
-      cur_(0),
-      line_number_(1),
-      char_in_line_(1) {
-}
-
-Tokenizer::~Tokenizer() {
-}
-
-// static
-std::vector<Token> Tokenizer::Tokenize(const InputFile* input_file, Err* err) {
-  Tokenizer t(input_file, err);
-  return t.Run();
-}
-
-std::vector<Token> Tokenizer::Run() {
-  std::vector<Token> tokens;
-  while (!done()) {
-    AdvanceToNextToken();
-    if (done())
-      break;
-    Location location = GetCurrentLocation();
-
-    Token::Type type = ClassifyCurrent();
-    if (type == Token::INVALID) {
-      *err_ = GetErrorForInvalidToken(location);
-      break;
-    }
-    size_t token_begin = cur_;
-    AdvanceToEndOfToken(location, type);
-    if (has_error())
-      break;
-    size_t token_end = cur_;
-
-    // TODO(brettw) This just strips comments from the token stream. This
-    // is probably wrong, they should be removed at a later stage so we can
-    // do things like rewrite the file. But this makes the parser simpler and
-    // is OK for now.
-    if (type != Token::COMMENT) {
-      tokens.push_back(Token(
-          location,
-          type,
-          base::StringPiece(&input_.data()[token_begin],
-                            token_end - token_begin)));
-    }
-  }
-  if (err_->has_error())
-    tokens.clear();
-  return tokens;
-}
-
-// static
-size_t Tokenizer::ByteOffsetOfNthLine(const base::StringPiece& buf, int n) {
-  int cur_line = 1;
-  size_t cur_byte = 0;
-
-  DCHECK(n > 0);
-
-  if (n == 1)
-    return 0;
-
-  while (cur_byte < buf.size()) {
-    if (IsNewline(buf, cur_byte)) {
-      cur_line++;
-      if (cur_line == n)
-        return cur_byte + 1;
-    }
-    cur_byte++;
-  }
-  return -1;
-}
-
-// static
-bool Tokenizer::IsNewline(const base::StringPiece& buffer, size_t offset) {
-  DCHECK(offset < buffer.size());
-  // We may need more logic here to handle different line ending styles.
-  return buffer[offset] == '\n';
-}
-
-
-void Tokenizer::AdvanceToNextToken() {
-  while (!at_end() && IsCurrentWhitespace())
-    Advance();
-}
-
-Token::Type Tokenizer::ClassifyCurrent() const {
-  DCHECK(!at_end());
-  char next_char = cur_char();
-  if (next_char >= '0' && next_char <= '9')
-    return Token::INTEGER;
-  if (next_char == '"')
-    return Token::STRING;
-
-  // Note: '-' handled specially below.
-  if (next_char != '-' && CouldBeOperator(next_char))
-    return Token::OPERATOR;
-
-  if (IsIdentifierFirstChar(next_char))
-    return Token::IDENTIFIER;
-
-  if (IsScoperChar(next_char))
-    return Token::SCOPER;
-
-  if (IsSeparatorChar(next_char))
-    return Token::SEPARATOR;
-
-  if (next_char == '#')
-    return Token::COMMENT;
-
-  // For the case of '-' differentiate between a negative number and anything
-  // else.
-  if (next_char == '-') {
-    if (!CanIncrement())
-      return Token::OPERATOR;  // Just the minus before end of file.
-    char following_char = input_[cur_ + 1];
-    if (following_char >= '0' && following_char <= '9')
-      return Token::INTEGER;
-    return Token::OPERATOR;
-  }
-
-  return Token::INVALID;
-}
-
-void Tokenizer::AdvanceToEndOfToken(const Location& location,
-                                    Token::Type type) {
-  switch (type) {
-    case Token::INTEGER:
-      do {
-        Advance();
-      } while (!at_end() && IsNumberChar(cur_char()));
-      if (!at_end()) {
-        // Require the char after a number to be some kind of space, scope,
-        // or operator.
-        char c = cur_char();
-        if (!IsCurrentWhitespace() && !CouldBeOperator(c) &&
-            !IsScoperChar(c) && !IsSeparatorChar(c)) {
-          *err_ = Err(GetCurrentLocation(),
-              "This is not a valid number.",
-              "Learn to count.");
-          // Highlight the number.
-          err_->AppendRange(LocationRange(location, GetCurrentLocation()));
-        }
-      }
-      break;
-
-    case Token::STRING: {
-      char initial = cur_char();
-      Advance();  // Advance past initial "
-      for (;;) {
-        if (at_end()) {
-          *err_ = Err(LocationRange(location,
-                          Location(input_file_, line_number_, char_in_line_)),
-                     "Unterminated string literal.",
-                     "Don't leave me hanging like this!");
-          break;
-        }
-        if (IsCurrentStringTerminator(initial)) {
-          Advance();  // Skip past last "
-          break;
-        } else if (cur_char() == '\n') {
-          *err_ = Err(LocationRange(location,
-                                   GetCurrentLocation()),
-                     "Newline in string constant.");
-        }
-        Advance();
-      }
-      break;
-    }
-
-    case Token::OPERATOR:
-      // Some operators are two characters, some are one.
-      if (CouldBeTwoCharOperatorBegin(cur_char())) {
-        if (CanIncrement() && CouldBeTwoCharOperatorEnd(input_[cur_ + 1]))
-          Advance();
-      }
-      Advance();
-      break;
-
-    case Token::IDENTIFIER:
-      while (!at_end() && IsIdentifierContinuingChar(cur_char()))
-        Advance();
-      break;
-
-    case Token::SCOPER:
-    case Token::SEPARATOR:
-      Advance();  // All are one char.
-      break;
-
-    case Token::COMMENT:
-      // Eat to EOL.
-      while (!at_end() && !IsCurrentNewline())
-        Advance();
-      break;
-
-    case Token::INVALID:
-      *err_ = Err(location, "Everything is all messed up",
-                  "Please insert system disk in drive A: and press any key.");
-      NOTREACHED();
-      return;
-  }
-}
-
-bool Tokenizer::IsCurrentWhitespace() const {
-  DCHECK(!at_end());
-  char c = input_[cur_];
-  // Note that tab (0x09) is illegal.
-  return c == 0x0A || c == 0x0B || c == 0x0C || c == 0x0D || c == 0x20;
-}
-
-bool Tokenizer::IsCurrentStringTerminator(char quote_char) const {
-  DCHECK(!at_end());
-  if (cur_char() != quote_char)
-    return false;
-
-  // Check for escaping. \" is not a string terminator, but \\" is. Count
-  // the number of preceeding backslashes.
-  int num_backslashes = 0;
-  for (int i = static_cast<int>(cur_) - 1; i >= 0 && input_[i] == '\\'; i--)
-    num_backslashes++;
-
-  // Even backslashes mean that they were escaping each other and don't count
-  // as escaping this quote.
-  return (num_backslashes % 2) == 0;
-}
-
-bool Tokenizer::IsCurrentNewline() const {
-  return IsNewline(input_, cur_);
-}
-
-void Tokenizer::Advance() {
-  DCHECK(cur_ < input_.size());
-  if (IsCurrentNewline()) {
-    line_number_++;
-    char_in_line_ = 1;
-  } else {
-    char_in_line_++;
-  }
-  cur_++;
-}
-
-Location Tokenizer::GetCurrentLocation() const {
-  return Location(input_file_, line_number_, char_in_line_);
-}
-
-Err Tokenizer::GetErrorForInvalidToken(const Location& location) const {
-  std::string help;
-  if (cur_char() == ';') {
-    // Semicolon.
-    help = "Semicolons are not needed, delete this one.";
-  } else if (cur_char() == '\t') {
-    // Tab.
-    help = "You got a tab character in here. Tabs are evil. "
-           "Convert to spaces.";
-  } else if (cur_char() == '/' && cur_ + 1 < input_.size() &&
-      (input_[cur_ + 1] == '/' || input_[cur_ + 1] == '*')) {
-    // Different types of comments.
-    help = "Comments should start with # instead";
-  } else {
-    help = "I have no idea what this is.";
-  }
-
-  return Err(location, "Invalid token.", help);
-}
diff --git a/tools/gn/tokenizer.h b/tools/gn/tokenizer.h
deleted file mode 100644
index 5e0016919f20..000000000000
--- a/tools/gn/tokenizer.h
+++ /dev/null
@@ -1,86 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_TOKENIZER_H_
-#define TOOLS_GN_TOKENIZER_H_
-
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/strings/string_piece.h"
-#include "tools/gn/err.h"
-#include "tools/gn/token.h"
-
-class InputFile;
-
-class Tokenizer {
- public:
-  static std::vector<Token> Tokenize(const InputFile* input_file, Err* err);
-
-  // Counts lines in the given buffer (the first line is "1") and returns
-  // the byte offset of the beginning of that line, or (size_t)-1 if there
-  // aren't that many lines in the file. Note that this will return the byte
-  // one past the end of the input if the last character is a newline.
-  //
-  // This is a helper function for error output so that the tokenizer's
-  // notion of lines can be used elsewhere.
-  static size_t ByteOffsetOfNthLine(const base::StringPiece& buf, int n);
-
-  // Returns true if the given offset of the string piece counts as a newline.
-  // The offset must be in the buffer.
-  static bool IsNewline(const base::StringPiece& buffer, size_t offset);
-
-  static bool IsIdentifierFirstChar(char c) {
-    return (c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z') || c == '_';
-  }
-
-  static bool IsIdentifierContinuingChar(char c) {
-    // Also allow digits after the first char.
-    return IsIdentifierFirstChar(c) || (c >= '0' && c <= '9');
-  }
-
- private:
-  // InputFile must outlive the tokenizer and all generated tokens.
-  explicit Tokenizer(const InputFile* input_file, Err* err);
-  ~Tokenizer();
-
-  std::vector<Token> Run();
-
-  void AdvanceToNextToken();
-  Token::Type ClassifyCurrent() const;
-  void AdvanceToEndOfToken(const Location& location, Token::Type type);
-
-  bool IsCurrentWhitespace() const;
-  bool IsCurrentNewline() const;
-  bool IsCurrentStringTerminator(char quote_char) const;
-
-  bool CanIncrement() const { return cur_ < input_.size(); }
-
-  // Increments the current location by one.
-  void Advance();
-
-  // Returns the current character in the file as a location.
-  Location GetCurrentLocation() const;
-
-  Err GetErrorForInvalidToken(const Location& location) const;
-
-  bool done() const { return at_end() || has_error(); }
-
-  bool at_end() const { return cur_ == input_.size(); }
-  char cur_char() const { return input_[cur_]; }
-
-  bool has_error() const { return err_->has_error(); }
-
-  const InputFile* input_file_;
-  const base::StringPiece input_;
-  Err* err_;
-  size_t cur_;  // Byte offset into input buffer.
-
-  int line_number_;
-  int char_in_line_;
-
-  DISALLOW_COPY_AND_ASSIGN(Tokenizer);
-};
-
-#endif  // TOOLS_GN_TOKENIZER_H_
diff --git a/tools/gn/tokenizer_unittest.cc b/tools/gn/tokenizer_unittest.cc
deleted file mode 100644
index d1a678842b8b..000000000000
--- a/tools/gn/tokenizer_unittest.cc
+++ /dev/null
@@ -1,162 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "testing/gtest/include/gtest/gtest.h"
-#include "tools/gn/input_file.h"
-#include "tools/gn/token.h"
-#include "tools/gn/tokenizer.h"
-
-namespace {
-
-struct TokenExpectation {
-  Token::Type type;
-  const char* value;
-};
-
-template<size_t len>
-bool CheckTokenizer(const char* input, const TokenExpectation (&expect)[len]) {
-  InputFile input_file(SourceFile("/test"));
-  input_file.SetContents(input);
-
-  Err err;
-  std::vector<Token> results = Tokenizer::Tokenize(&input_file, &err);
-
-  if (results.size() != len)
-    return false;
-  for (size_t i = 0; i < len; i++) {
-    if (expect[i].type != results[i].type())
-      return false;
-    if (expect[i].value != results[i].value())
-      return false;
-  }
-  return true;
-}
-
-}  // namespace
-
-TEST(Tokenizer, Empty) {
-  InputFile empty_string_input(SourceFile("/test"));
-  empty_string_input.SetContents("");
-
-  Err err;
-  std::vector<Token> results = Tokenizer::Tokenize(&empty_string_input, &err);
-  EXPECT_TRUE(results.empty());
-
-  InputFile whitespace_input(SourceFile("/test"));
-  whitespace_input.SetContents("  \n\r");
-
-  results = Tokenizer::Tokenize(&whitespace_input, &err);
-  EXPECT_TRUE(results.empty());
-}
-
-TEST(Tokenizer, Identifier) {
-  TokenExpectation one_ident[] = {
-    { Token::IDENTIFIER, "foo" }
-  };
-  EXPECT_TRUE(CheckTokenizer("  foo ", one_ident));
-}
-
-TEST(Tokenizer, Integer) {
-  TokenExpectation integers[] = {
-    { Token::INTEGER, "123" },
-    { Token::INTEGER, "-123" }
-  };
-  EXPECT_TRUE(CheckTokenizer("  123 -123 ", integers));
-}
-
-TEST(Tokenizer, String) {
-  TokenExpectation strings[] = {
-    { Token::STRING, "\"foo\"" },
-    { Token::STRING, "\"bar\\\"baz\"" },
-    { Token::STRING, "\"asdf\\\\\"" }
-  };
-  EXPECT_TRUE(CheckTokenizer("  \"foo\" \"bar\\\"baz\" \"asdf\\\\\" ",
-              strings));
-}
-
-TEST(Tokenizer, Operator) {
-  TokenExpectation operators[] = {
-    { Token::OPERATOR, "-" },
-    { Token::OPERATOR, "+" },
-    { Token::OPERATOR, "=" },
-    { Token::OPERATOR, "+=" },
-    { Token::OPERATOR, "-=" },
-    { Token::OPERATOR, "!=" },
-    { Token::OPERATOR, "==" },
-    { Token::OPERATOR, "<" },
-    { Token::OPERATOR, ">" },
-    { Token::OPERATOR, "<=" },
-    { Token::OPERATOR, ">=" },
-  };
-  EXPECT_TRUE(CheckTokenizer("- + = += -= != ==  < > <= >=",
-              operators));
-}
-
-TEST(Tokenizer, Scoper) {
-  TokenExpectation scopers[] = {
-    { Token::SCOPER, "{" },
-    { Token::SCOPER, "[" },
-    { Token::SCOPER, "]" },
-    { Token::SCOPER, "}" },
-    { Token::SCOPER, "(" },
-    { Token::SCOPER, ")" },
-  };
-  EXPECT_TRUE(CheckTokenizer("{[ ]} ()", scopers));
-}
-
-TEST(Tokenizer, FunctionCall) {
-  TokenExpectation fn[] = {
-    { Token::IDENTIFIER, "fun" },
-    { Token::SCOPER, "(" },
-    { Token::STRING, "\"foo\"" },
-    { Token::SCOPER, ")" },
-    { Token::SCOPER, "{" },
-    { Token::IDENTIFIER, "foo" },
-    { Token::OPERATOR, "=" },
-    { Token::INTEGER, "12" },
-    { Token::SCOPER, "}" },
-  };
-  EXPECT_TRUE(CheckTokenizer("fun(\"foo\") {\nfoo = 12}", fn));
-}
-
-TEST(Tokenizer, StringUnescaping) {
-  InputFile input(SourceFile("/test"));
-  input.SetContents("\"asd\\\"f\" \"\"");
-  Err err;
-  std::vector<Token> results = Tokenizer::Tokenize(&input, &err);
-
-  ASSERT_EQ(2u, results.size());
-  EXPECT_EQ("asd\"f", results[0].StringValue());
-  EXPECT_EQ("", results[1].StringValue());
-}
-
-TEST(Tokenizer, Locations) {
-  InputFile input(SourceFile("/test"));
-  input.SetContents("1 2 \"three\"\n  4");
-  Err err;
-  std::vector<Token> results = Tokenizer::Tokenize(&input, &err);
-
-  ASSERT_EQ(4u, results.size());
-  ASSERT_TRUE(results[0].location() == Location(&input, 1, 1));
-  ASSERT_TRUE(results[1].location() == Location(&input, 1, 3));
-  ASSERT_TRUE(results[2].location() == Location(&input, 1, 5));
-  ASSERT_TRUE(results[3].location() == Location(&input, 2, 3));
-}
-
-TEST(Tokenizer, ByteOffsetOfNthLine) {
-  EXPECT_EQ(0u, Tokenizer::ByteOffsetOfNthLine("foo", 1));
-
-  // Windows and Posix have different line endings, so check the byte at the
-  // location rather than the offset.
-  char input1[] = "aaa\nxaa\n\nya";
-  EXPECT_EQ('x', input1[Tokenizer::ByteOffsetOfNthLine(input1, 2)]);
-  EXPECT_EQ('y', input1[Tokenizer::ByteOffsetOfNthLine(input1, 4)]);
-
-  char input2[3];
-  input2[0] = 'a';
-  input2[1] = '\n';  // Manually set to avoid Windows double-byte endings.
-  input2[2] = 0;
-  EXPECT_EQ(0u, Tokenizer::ByteOffsetOfNthLine(input2, 1));
-  EXPECT_EQ(2u, Tokenizer::ByteOffsetOfNthLine(input2, 2));
-}
diff --git a/tools/gn/toolchain.cc b/tools/gn/toolchain.cc
deleted file mode 100644
index 20b81f5506b9..000000000000
--- a/tools/gn/toolchain.cc
+++ /dev/null
@@ -1,79 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/toolchain.h"
-
-#include "base/logging.h"
-
-const char* Toolchain::kToolCc = "cc";
-const char* Toolchain::kToolCxx = "cxx";
-const char* Toolchain::kToolAsm = "asm";
-const char* Toolchain::kToolAlink = "alink";
-const char* Toolchain::kToolSolink = "solink";
-const char* Toolchain::kToolSolinkModule = "solink_module";
-const char* Toolchain::kToolLink = "link";
-const char* Toolchain::kToolStamp = "stamp";
-const char* Toolchain::kToolCopy = "copy";
-
-Toolchain::Tool::Tool() {
-}
-
-Toolchain::Tool::~Tool() {
-}
-
-Toolchain::Toolchain(const Label& label) : Item(label) {
-}
-
-Toolchain::~Toolchain() {
-}
-
-Toolchain* Toolchain::AsToolchain() {
-  return this;
-}
-
-const Toolchain* Toolchain::AsToolchain() const {
-  return this;
-}
-
-// static
-Toolchain::ToolType Toolchain::ToolNameToType(const base::StringPiece& str) {
-  if (str == kToolCc) return TYPE_CC;
-  if (str == kToolCxx) return TYPE_CXX;
-  if (str == kToolAsm) return TYPE_ASM;
-  if (str == kToolAlink) return TYPE_ALINK;
-  if (str == kToolSolink) return TYPE_SOLINK;
-  if (str == kToolSolinkModule) return TYPE_SOLINK_MODULE;
-  if (str == kToolLink) return TYPE_LINK;
-  if (str == kToolStamp) return TYPE_STAMP;
-  if (str == kToolCopy) return TYPE_COPY;
-  return TYPE_NONE;
-}
-
-// static
-std::string Toolchain::ToolTypeToName(ToolType type) {
-  switch (type) {
-    case TYPE_CC: return kToolCc;
-    case TYPE_CXX: return kToolCxx;
-    case TYPE_ASM: return kToolAsm;
-    case TYPE_ALINK: return kToolAlink;
-    case TYPE_SOLINK: return kToolSolink;
-    case TYPE_SOLINK_MODULE: return kToolSolinkModule;
-    case TYPE_LINK: return kToolLink;
-    case TYPE_STAMP: return kToolStamp;
-    case TYPE_COPY: return kToolCopy;
-    default:
-      NOTREACHED();
-      return std::string();
-  }
-}
-
-const Toolchain::Tool& Toolchain::GetTool(ToolType type) const {
-  DCHECK(type != TYPE_NONE);
-  return tools_[static_cast<size_t>(type)];
-}
-
-void Toolchain::SetTool(ToolType type, const Tool& t) {
-  DCHECK(type != TYPE_NONE);
-  tools_[static_cast<size_t>(type)] = t;
-}
diff --git a/tools/gn/toolchain.h b/tools/gn/toolchain.h
deleted file mode 100644
index 22b8151bb001..000000000000
--- a/tools/gn/toolchain.h
+++ /dev/null
@@ -1,94 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_TOOLCHAIN_H_
-#define TOOLS_GN_TOOLCHAIN_H_
-
-#include "base/compiler_specific.h"
-#include "base/strings/string_piece.h"
-#include "tools/gn/item.h"
-
-// Holds information on a specific toolchain. This data is filled in when we
-// encounter a toolchain definition.
-//
-// This class is an Item so it can participate in dependency management. In
-// particular, when a target uses a toolchain, it should have a dependency on
-// that toolchain's object so that we can be sure we loaded the toolchain
-// before generating the build for that target.
-//
-// Note on threadsafety: The label of the toolchain never changes so can
-// safetly be accessed from any thread at any time (we do this when asking for
-// the toolchain name). But the values in the toolchain do, so these can't
-// be accessed until this Item is resolved.
-class Toolchain : public Item {
- public:
-  enum ToolType {
-    TYPE_NONE = 0,
-    TYPE_CC,
-    TYPE_CXX,
-    TYPE_ASM,
-    TYPE_ALINK,
-    TYPE_SOLINK,
-    TYPE_SOLINK_MODULE,
-    TYPE_LINK,
-    TYPE_STAMP,
-    TYPE_COPY,
-
-    TYPE_NUMTYPES  // Must be last.
-  };
-
-  static const char* kToolCc;
-  static const char* kToolCxx;
-  static const char* kToolAsm;
-  static const char* kToolAlink;
-  static const char* kToolSolink;
-  static const char* kToolSolinkModule;
-  static const char* kToolLink;
-  static const char* kToolStamp;
-  static const char* kToolCopy;
-
-  struct Tool {
-    Tool();
-    ~Tool();
-
-    bool empty() const {
-      return command.empty() && depfile.empty() && deps.empty() &&
-             description.empty() && pool.empty() && restat.empty() &&
-             rspfile.empty() && rspfile_content.empty();
-    }
-
-    std::string command;
-    std::string depfile;
-    std::string deps;
-    std::string description;
-    std::string pool;
-    std::string restat;
-    std::string rspfile;
-    std::string rspfile_content;
-  };
-
-  Toolchain(const Label& label);
-  virtual ~Toolchain();
-
-  // Item overrides.
-  virtual Toolchain* AsToolchain() OVERRIDE;
-  virtual const Toolchain* AsToolchain() const OVERRIDE;
-
-  // Returns TYPE_NONE on failure.
-  static ToolType ToolNameToType(const base::StringPiece& str);
-  static std::string ToolTypeToName(ToolType type);
-
-  const Tool& GetTool(ToolType type) const;
-  void SetTool(ToolType type, const Tool& t);
-
-  const std::string& environment() const { return environment_; }
-  void set_environment(const std::string& env) { environment_ = env; }
-
- private:
-  Tool tools_[TYPE_NUMTYPES];
-
-  std::string environment_;
-};
-
-#endif  // TOOLS_GN_TOOLCHAIN_H_
diff --git a/tools/gn/toolchain_manager.cc b/tools/gn/toolchain_manager.cc
deleted file mode 100644
index 8a54163c7059..000000000000
--- a/tools/gn/toolchain_manager.cc
+++ /dev/null
@@ -1,480 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/toolchain_manager.h"
-
-#include <set>
-
-#include "base/bind.h"
-#include "tools/gn/err.h"
-#include "tools/gn/item.h"
-#include "tools/gn/item_node.h"
-#include "tools/gn/item_tree.h"
-#include "tools/gn/parse_tree.h"
-#include "tools/gn/scheduler.h"
-#include "tools/gn/scope.h"
-#include "tools/gn/scope_per_file_provider.h"
-
-namespace {
-
-SourceFile DirToBuildFile(const SourceDir& dir) {
-  return SourceFile(dir.value() + "BUILD.gn");
-}
-
-void SetSystemVars(const Settings& settings, Scope* scope) {
-  // FIXME(brettw) port.
-  scope->SetValue("is_win", Value(NULL, 1), NULL);
-  scope->SetValue("is_linux", Value(NULL, 0), NULL);
-  scope->SetValue("is_posix", Value(NULL, 0), NULL);
-  scope->SetValue("is_mac", Value(NULL, 0), NULL);
-  scope->SetValue("is_android", Value(NULL, 0), NULL);
-  scope->SetValue("is_ios", Value(NULL, 0), NULL);
-
-  // Set this value without the terminating slash because the code expects
-  // $root_output_dir/foo to work.
-  scope->SetValue(ScopePerFileProvider::kRootOutputDirName,
-                  ScopePerFileProvider::GetRootOutputDir(&settings),
-                  NULL);
-  scope->SetValue(ScopePerFileProvider::kRootGenDirName,
-                  ScopePerFileProvider::GetRootGenDir(&settings),
-                  NULL);
-}
-
-}  // namespace
-
-struct ToolchainManager::Info {
-  Info(const BuildSettings* build_settings,
-       const Label& toolchain_name,
-       const std::string& output_subdir_name)
-      : state(TOOLCHAIN_SETTINGS_NOT_LOADED),
-        toolchain(toolchain_name),
-        toolchain_set(false),
-        settings(build_settings, &toolchain, output_subdir_name),
-        item_node(NULL) {
-  }
-
-  // MAkes sure that an ItemNode is created for the toolchain, which lets
-  // targets depend on the (potentially future) loading of the toolchain.
-  //
-  // We can't always do this at the beginning since when doing the default
-  // build config, we don't know the toolchain name yet. We also need to go
-  // through some effort to avoid doing this inside the toolchain manager's
-  // lock (to avoid holding two locks at once).
-  void EnsureItemNode() {
-    if (!item_node) {
-      ItemTree& tree = settings.build_settings()->item_tree();
-      item_node = new ItemNode(&toolchain);
-      tree.AddNodeLocked(item_node);
-    }
-  }
-
-  SettingsState state;
-
-  Toolchain toolchain;
-  bool toolchain_set;
-  LocationRange toolchain_definition_location;
-
-  // When the state is TOOLCHAIN_SETTINGS_LOADED, the settings should be
-  // considered read-only and can be read without locking. Otherwise, they
-  // should not be accessed at all except to load them (which can therefore
-  // also be done outside of the lock). This works as long as the state flag
-  // is only ever read or written inside the lock.
-  Settings settings;
-
-  // While state == TOOLCHAIN_SETTINGS_LOADING, this will collect all
-  // scheduled invocations using this toolchain. They'll be issued once the
-  // settings file has been interpreted.
-  //
-  // The map maps the source file to "some" location it was invoked from (so
-  // we can give good error messages. It does NOT map to the root of the
-  // file to be invoked (the file still needs loading). This will be NULL
-  // for internally invoked files.
-  typedef std::map<SourceFile, LocationRange> ScheduledInvocationMap;
-  ScheduledInvocationMap scheduled_invocations;
-
-  // Tracks all scheduled and executed invocations for this toolchain. This
-  // is used to avoid invoking a file more than once for a toolchain.
-  std::set<SourceFile> all_invocations;
-
-  // Filled in by EnsureItemNode, see that for more.
-  ItemNode* item_node;
-};
-
-ToolchainManager::ToolchainManager(const BuildSettings* build_settings)
-    : build_settings_(build_settings) {
-}
-
-ToolchainManager::~ToolchainManager() {
-  for (ToolchainMap::iterator i = toolchains_.begin();
-       i != toolchains_.end(); ++i)
-    delete i->second;
-  toolchains_.clear();
-}
-
-void ToolchainManager::StartLoadingUnlocked(const SourceFile& build_file_name) {
-  // How the default build config works: Initially we don't have a toolchain
-  // name to call the settings for the default build config. So we create one
-  // with an empty toolchain name and execute the default build config file.
-  // When that's done, we'll go and fix up the name to the default build config
-  // that the script set.
-  base::AutoLock lock(GetLock());
-  Err err;
-  Info* info = LoadNewToolchainLocked(LocationRange(), Label(), &err);
-  if (err.has_error())
-    g_scheduler->FailWithError(err);
-  CHECK(info);
-  info->scheduled_invocations[build_file_name] = LocationRange();
-  info->all_invocations.insert(build_file_name);
-
-  g_scheduler->IncrementWorkCount();
-  if (!g_scheduler->input_file_manager()->AsyncLoadFile(
-           LocationRange(), build_settings_,
-           build_settings_->build_config_file(),
-           base::Bind(&ToolchainManager::BackgroundLoadBuildConfig,
-                      base::Unretained(this), info, true),
-           &err)) {
-    g_scheduler->FailWithError(err);
-    g_scheduler->DecrementWorkCount();
-  }
-}
-
-const Settings* ToolchainManager::GetSettingsForToolchainLocked(
-    const LocationRange& from_here,
-    const Label& toolchain_name,
-    Err* err) {
-  GetLock().AssertAcquired();
-  ToolchainMap::iterator found = toolchains_.find(toolchain_name);
-  Info* info = NULL;
-  if (found == toolchains_.end()) {
-    info = LoadNewToolchainLocked(from_here, toolchain_name, err);
-    if (!info)
-      return NULL;
-  } else {
-    info = found->second;
-  }
-  info->EnsureItemNode();
-
-  return &info->settings;
-}
-
-const Toolchain* ToolchainManager::GetToolchainDefinitionUnlocked(
-    const Label& toolchain_name) {
-  base::AutoLock lock(GetLock());
-  ToolchainMap::iterator found = toolchains_.find(toolchain_name);
-  if (found == toolchains_.end() || !found->second->toolchain_set)
-    return NULL;
-
-  // Since we don't allow defining a toolchain more than once, we know that
-  // once it's set it won't be mutated, so we can safely return this pointer
-  // for reading outside the lock.
-  return &found->second->toolchain;
-}
-
-bool ToolchainManager::SetDefaultToolchainUnlocked(
-    const Label& default_toolchain,
-    const LocationRange& defined_here,
-    Err* err) {
-  base::AutoLock lock(GetLock());
-  if (!default_toolchain_.is_null()) {
-    *err = Err(defined_here, "Default toolchain already set.");
-    err->AppendSubErr(Err(default_toolchain_defined_here_,
-                          "Previously defined here.",
-                          "You can only set this once."));
-    return false;
-  }
-
-  if (default_toolchain.is_null()) {
-    *err = Err(defined_here, "Bad default toolchain name.",
-        "You can't set the default toolchain name to nothing.");
-    return false;
-  }
-  if (!default_toolchain.toolchain_dir().is_null() ||
-      !default_toolchain.toolchain_name().empty()) {
-    *err = Err(defined_here, "Toolchain name has toolchain.",
-        "You can't specify a toolchain (inside the parens) for a toolchain "
-        "name. I got:\n" + default_toolchain.GetUserVisibleName(true));
-    return false;
-  }
-
-  default_toolchain_ = default_toolchain;
-  default_toolchain_defined_here_ = defined_here;
-  return true;
-}
-
-Label ToolchainManager::GetDefaultToolchainUnlocked() const {
-  base::AutoLock lock(GetLock());
-  return default_toolchain_;
-}
-
-bool ToolchainManager::SetToolchainDefinitionLocked(
-    const Toolchain& tc,
-    const LocationRange& defined_from,
-    Err* err) {
-  GetLock().AssertAcquired();
-
-  ToolchainMap::iterator found = toolchains_.find(tc.label());
-  Info* info = NULL;
-  if (found == toolchains_.end()) {
-    // New toolchain.
-    info = LoadNewToolchainLocked(defined_from, tc.label(), err);
-    if (!info)
-      return false;
-  } else {
-    // It's important to preserve the exact Toolchain object in our tree since
-    // it will be in the ItemTree and targets may have dependencies on it.
-    info = found->second;
-  }
-
-  // The labels should match or else we're setting the wrong one!
-  CHECK(info->toolchain.label() == tc.label());
-
-  info->toolchain = tc;
-  if (info->toolchain_set) {
-    *err = Err(defined_from, "Duplicate toolchain definition.");
-    err->AppendSubErr(Err(
-        info->toolchain_definition_location,
-        "Previously defined here.",
-        "A toolchain can only be defined once. One tricky way that this could\n"
-        "happen is if your definition is itself in a file that's interpreted\n"
-        "under different toolchains, which would result in multiple\n"
-        "definitions as the file is loaded multiple times. So be sure your\n"
-        "toolchain definitions are in files that either don't define any\n"
-        "targets (probably best) or at least don't contain targets executed\n"
-        "with more than one toolchain."));
-    return false;
-  }
-
-  info->EnsureItemNode();
-
-  info->toolchain_set = true;
-  info->toolchain_definition_location = defined_from;
-  return true;
-}
-
-bool ToolchainManager::ScheduleInvocationLocked(
-    const LocationRange& specified_from,
-    const Label& toolchain_name,
-    const SourceDir& dir,
-    Err* err) {
-  GetLock().AssertAcquired();
-  SourceFile build_file(DirToBuildFile(dir));
-
-  ToolchainMap::iterator found = toolchains_.find(toolchain_name);
-  Info* info = NULL;
-  if (found == toolchains_.end()) {
-    // New toolchain.
-    info = LoadNewToolchainLocked(specified_from, toolchain_name, err);
-    if (!info)
-      return false;
-  } else {
-    // Use existing one.
-    info = found->second;
-    if (info->all_invocations.find(build_file) !=
-        info->all_invocations.end()) {
-      // We've already seen this source file for this toolchain, don't need
-      // to do anything.
-      return true;
-    }
-  }
-
-  info->all_invocations.insert(build_file);
-
-  // True if the settings load needs to be scheduled.
-  bool info_needs_settings_load = false;
-
-  // True if the settings load has completed.
-  bool info_settings_loaded = false;
-
-  switch (info->state) {
-    case TOOLCHAIN_SETTINGS_NOT_LOADED:
-      info_needs_settings_load = true;
-      info->scheduled_invocations[build_file] = specified_from;
-      break;
-
-    case TOOLCHAIN_SETTINGS_LOADING:
-      info->scheduled_invocations[build_file] = specified_from;
-      break;
-
-    case TOOLCHAIN_SETTINGS_LOADED:
-      info_settings_loaded = true;
-      break;
-  }
-
-  if (info_needs_settings_load) {
-    // Load the settings file.
-    g_scheduler->IncrementWorkCount();
-    if (!g_scheduler->input_file_manager()->AsyncLoadFile(
-             specified_from, build_settings_,
-             build_settings_->build_config_file(),
-             base::Bind(&ToolchainManager::BackgroundLoadBuildConfig,
-                        base::Unretained(this), info, false),
-             err)) {
-      g_scheduler->DecrementWorkCount();
-      return false;
-    }
-  } else if (info_settings_loaded) {
-    // Settings are ready to go, load the target file.
-    g_scheduler->IncrementWorkCount();
-    if (!g_scheduler->input_file_manager()->AsyncLoadFile(
-             specified_from, build_settings_, build_file,
-             base::Bind(&ToolchainManager::BackgroundInvoke,
-                        base::Unretained(this), info, build_file),
-             err)) {
-      g_scheduler->DecrementWorkCount();
-      return false;
-    }
-  }
-  // Else we should have added the infocations to the scheduled_invocations
-  // from within the lock above.
-  return true;
-}
-
-// static
-std::string ToolchainManager::ToolchainToOutputSubdir(
-    const Label& toolchain_name) {
-  // For now just assume the toolchain name is always a valid dir name. We may
-  // want to clean up the in the future.
-  return toolchain_name.name();
-}
-
-ToolchainManager::Info* ToolchainManager::LoadNewToolchainLocked(
-    const LocationRange& specified_from,
-    const Label& toolchain_name,
-    Err* err) {
-  GetLock().AssertAcquired();
-  Info* info = new Info(build_settings_,
-                        toolchain_name,
-                        ToolchainToOutputSubdir(toolchain_name));
-
-  toolchains_[toolchain_name] = info;
-
-  // Invoke the file containing the toolchain definition so that it gets
-  // defined. The default one (label is empty) will be done spearately.
-  if (!toolchain_name.is_null()) {
-    // The default toolchain should be specified whenever we're requesting
-    // another one. This is how we know under what context we should execute
-    // the invoke for the toolchain file.
-    CHECK(!default_toolchain_.is_null());
-    ScheduleInvocationLocked(specified_from, default_toolchain_,
-                             toolchain_name.dir(), err);
-  }
-  return info;
-}
-
-void ToolchainManager::FixupDefaultToolchainLocked() {
-  // Now that we've run the default build config, we should know the
-  // default toolchain name. Fix up our reference.
-  // See Start() for more.
-  GetLock().AssertAcquired();
-  if (default_toolchain_.is_null()) {
-    g_scheduler->FailWithError(Err(Location(),
-        "Default toolchain not set.",
-        "Your build config file \"" +
-        build_settings_->build_config_file().value() +
-        "\"\ndid not call set_default_toolchain(). This is needed so "
-        "I know how to actually\ncompile your code."));
-    return;
-  }
-
-  ToolchainMap::iterator old_default = toolchains_.find(Label());
-  CHECK(old_default != toolchains_.end());
-  Info* info = old_default->second;
-  toolchains_[default_toolchain_] = info;
-  toolchains_.erase(old_default);
-
-  // Toolchain should not have been loaded in the build config file.
-  CHECK(!info->toolchain_set);
-
-  // We need to set the toolchain label now that we know it. There's no way
-  // to set the label, but we can assign the toolchain to a new one. Loading
-  // the build config can not change the toolchain, so we won't be overwriting
-  // anything useful.
-  info->toolchain = Toolchain(default_toolchain_);
-  info->EnsureItemNode();
-
-  // Schedule a load of the toolchain build file.
-  Err err;
-  ScheduleInvocationLocked(LocationRange(), default_toolchain_,
-                           default_toolchain_.dir(), &err);
-  if (err.has_error())
-    g_scheduler->FailWithError(err);
-}
-
-void ToolchainManager::BackgroundLoadBuildConfig(Info* info,
-                                                 bool is_default,
-                                                 const ParseNode* root) {
-  // Danger: No early returns without decrementing the work count.
-  if (root && !g_scheduler->is_failed()) {
-    // Nobody should be accessing settings at this point other than us since we
-    // haven't marked it loaded, so we can do it outside the lock.
-    Scope* base_config = info->settings.base_config();
-    SetSystemVars(info->settings, base_config);
-    base_config->SetProcessingBuildConfig();
-    if (is_default)
-      base_config->SetProcessingDefaultBuildConfig();
-
-    const BlockNode* root_block = root->AsBlock();
-    Err err;
-    root_block->ExecuteBlockInScope(base_config, &err);
-
-    base_config->ClearProcessingBuildConfig();
-    if (is_default)
-      base_config->ClearProcessingDefaultBuildConfig();
-
-    if (err.has_error()) {
-      g_scheduler->FailWithError(err);
-    } else {
-      // Base config processing succeeded.
-      Info::ScheduledInvocationMap schedule_these;
-      {
-        base::AutoLock lock(GetLock());
-        schedule_these.swap(info->scheduled_invocations);
-        info->state = TOOLCHAIN_SETTINGS_LOADED;
-        if (is_default)
-          FixupDefaultToolchainLocked();
-      }
-
-      // Schedule build files waiting on this settings. There can be many so we
-      // want to load them in parallel on the pool.
-      for (Info::ScheduledInvocationMap::iterator i = schedule_these.begin();
-           i != schedule_these.end() && !g_scheduler->is_failed(); ++i) {
-        // Note i->second may be NULL, so don't dereference.
-        g_scheduler->IncrementWorkCount();
-        if (!g_scheduler->input_file_manager()->AsyncLoadFile(
-                 i->second, build_settings_, i->first,
-                 base::Bind(&ToolchainManager::BackgroundInvoke,
-                            base::Unretained(this), info, i->first),
-                 &err)) {
-          g_scheduler->FailWithError(err);
-          g_scheduler->DecrementWorkCount();
-          break;
-        }
-      }
-    }
-  }
-  g_scheduler->DecrementWorkCount();
-}
-
-void ToolchainManager::BackgroundInvoke(const Info* info,
-                                        const SourceFile& file_name,
-                                        const ParseNode* root) {
-  if (root && !g_scheduler->is_failed()) {
-    if (g_scheduler->verbose_logging())
-      g_scheduler->Log("Running", file_name.value());
-
-    Scope our_scope(info->settings.base_config());
-    ScopePerFileProvider per_file_provider(&our_scope, file_name);
-
-    Err err;
-    root->Execute(&our_scope, &err);
-    if (err.has_error())
-      g_scheduler->FailWithError(err);
-  }
-
-  g_scheduler->DecrementWorkCount();
-}
-
-base::Lock& ToolchainManager::GetLock() const {
-  return build_settings_->item_tree().lock();
-}
diff --git a/tools/gn/toolchain_manager.h b/tools/gn/toolchain_manager.h
deleted file mode 100644
index 4c0be412fddc..000000000000
--- a/tools/gn/toolchain_manager.h
+++ /dev/null
@@ -1,167 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_TOOLCHAIN_MANAGER_H_
-#define TOOLS_GN_TOOLCHAIN_MANAGER_H_
-
-#include <map>
-
-#include "base/basictypes.h"
-#include "base/synchronization/lock.h"
-#include "tools/gn/label.h"
-#include "tools/gn/location.h"
-#include "tools/gn/source_file.h"
-#include "tools/gn/toolchain.h"
-
-class Err;
-class BuildSettings;
-class ParseNode;
-class Settings;
-
-// The toolchain manager manages the mapping of toolchain names to the
-// settings and toolchain object. It also loads build files in the context of a
-// toolchain context of a toolchain, and manages running the build config
-// script when necessary.
-//
-// This class uses the lock from the item tree to manage threadsafety. The
-// functions requiring this lock to be held are named "Locked" to make this
-// more clear. The "Unlocked" versions will acquire the lock themselves so will
-// break if you call it while locked. (The rationale behind which is which is
-// just based on the needs of the callers, so it can be changed.) There are two
-// reasons for this:
-//
-// The first is that when resolving a target, we do a bunch of script
-// stuff (slow) and then lookup the target, config, and toolchain dependencies
-// based on that. The options are to do a lock around each dependency lookup
-// or do a lock around the entire operation. Given that there's not a huge
-// amount of work, the "big lock" approach is likely a bit better since it
-// avoids lots of locking overhead.
-//
-// The second reason is that if we had a separate lock here, we would need to
-// lock around creating a new toolchain. But creating a new toolchain involves
-// adding it to the item tree, and this needs to be done atomically to prevent
-// other threads from seeing a partially initialized toolchain. This sets up
-// having deadlock do to acquiring multiple locks, or recursive locking
-// problems.
-class ToolchainManager {
- public:
-  ToolchainManager(const BuildSettings* build_settings);
-  ~ToolchainManager();
-
-  // At the very beginning of processing, this begins loading build files.
-  // This will scheduler loadin the default build config and the given build
-  // file in that context, going out from there.
-  //
-  // This returns immediately, you need to run the Scheduler to actually
-  // process anything. It's assumed this function is called on the main thread
-  // before doing anything, so it does not need locking.
-  void StartLoadingUnlocked(const SourceFile& build_file_name);
-
-  // Returns the settings object for a given toolchain. This does not
-  // schedule loading the given toolchain if it's not loaded yet: you actually
-  // need to invoke a target with that toolchain to get that.
-  //
-  // On error, returns NULL and sets the error.
-  const Settings* GetSettingsForToolchainLocked(const LocationRange& from_here,
-                                                const Label& toolchain_name,
-                                                Err* err);
-
-  // Returns the toolchain definition or NULL if the toolchain hasn't been
-  // defined yet.
-  const Toolchain* GetToolchainDefinitionUnlocked(const Label& toolchain_name);
-
-  // Sets the default toolchain. If the default toolchain is already set,
-  // this function will return false and fill in the given err.
-  bool SetDefaultToolchainUnlocked(const Label& dt,
-                                   const LocationRange& defined_from,
-                                   Err* err);
-
-  // Returns the default toolchain name. This will be empty if it hasn't been
-  // set.
-  Label GetDefaultToolchainUnlocked() const;
-
-  // Saves the given named toolchain (the name will be taken from the toolchain
-  // parameter). This will fail and return false if the given toolchain was
-  // already defined. In this case, the given error will be set.
-  bool SetToolchainDefinitionLocked(const Toolchain& tc,
-                                    const LocationRange& defined_from,
-                                    Err* err);
-
-  // Schedules an invocation of the given file under the given toolchain. The
-  // toolchain file will be loaded if necessary.
-  //
-  // The origin should be the node that will be blamed for this invocation if
-  // an error occurs. If a synchronous error occurs, the given error will be
-  // set and it will return false. If an async error occurs, the error will be
-  // sent to the scheduler.
-  bool ScheduleInvocationLocked(const LocationRange& origin,
-                                const Label& toolchain_name,
-                                const SourceDir& dir,
-                                Err* err);
-
- private:
-  enum SettingsState {
-    // Toolchain settings have not requested to be loaded. This means we
-    // haven't seen any targets that require this toolchain yet. Not loading
-    // the settings automatically allows you to define a bunch of toolchains
-    // and potentially not use them without much overhead.
-    TOOLCHAIN_SETTINGS_NOT_LOADED,
-
-    // The settings have been scheduled to be loaded but have not completed.
-    TOOLCHAIN_SETTINGS_LOADING,
-
-    // The settings are done being loaded.
-    TOOLCHAIN_SETTINGS_LOADED
-  };
-
-  struct Info;
-
-  static std::string ToolchainToOutputSubdir(const Label& toolchain_name);
-
-  // Creates a new info struct and saves it in the map. A pointer to the
-  // struct is returned. No loads are scheduled.
-  //
-  // If the label is non-empty, the toolchain will be added to the ItemTree
-  // so that other nodes can depend on it. THe empty label case is for the
-  // default build config file (when the toolchain name isn't known yet). It
-  // will be added later.
-  //
-  // On error, will return NULL and the error will be set.
-  Info* LoadNewToolchainLocked(const LocationRange& specified_from,
-                               const Label& toolchain_name,
-                               Err* err);
-
-  // Fixes up the default toolchain names once they're known when processing
-  // the default build config, or throw an error if the default toolchain
-  // hasn't been set. See the StartLoading() implementation for more.
-  void FixupDefaultToolchainLocked();
-
-  // Loads the base config for the given toolchain. Run on a background thread
-  // asynchronously.
-  void BackgroundLoadBuildConfig(Info* info,
-                                 bool is_default,
-                                 const ParseNode* root);
-
-  // Invokes the given file for a toolchain with loaded settings. Run on a
-  // background thread asynchronously.
-  void BackgroundInvoke(const Info* info,
-                        const SourceFile& file_name,
-                        const ParseNode* root);
-
-  // Returns the lock to use.
-  base::Lock& GetLock() const;
-
-  const BuildSettings* build_settings_;
-
-  // We own the info pointers.
-  typedef std::map<Label, Info*> ToolchainMap;
-  ToolchainMap toolchains_;
-
-  Label default_toolchain_;
-  LocationRange default_toolchain_defined_here_;
-
-  DISALLOW_COPY_AND_ASSIGN(ToolchainManager);
-};
-
-#endif  // TOOLS_GN_TOOLCHAIN_MANAGER_H_
diff --git a/tools/gn/value.cc b/tools/gn/value.cc
deleted file mode 100644
index cb78faadcfda..000000000000
--- a/tools/gn/value.cc
+++ /dev/null
@@ -1,126 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/value.h"
-
-#include "base/strings/string_number_conversions.h"
-
-Value::Value()
-    : type_(NONE),
-      int_value_(0),
-      origin_(NULL) {
-}
-
-Value::Value(const ParseNode* origin, Type t)
-    : type_(t),
-      int_value_(0),
-      origin_(origin) {
-}
-
-Value::Value(const ParseNode* origin, int64 int_val)
-    : type_(INTEGER),
-      int_value_(int_val),
-      origin_(origin) {
-}
-
-Value::Value(const ParseNode* origin, const base::StringPiece& str_val)
-    : type_(STRING),
-      string_value_(str_val.as_string()),
-      int_value_(0),
-      origin_(origin) {
-}
-
-Value::~Value() {
-}
-
-// static
-const char* Value::DescribeType(Type t) {
-  switch (t) {
-    case NONE:
-      return "none";
-    case INTEGER:
-      return "integer";
-    case STRING:
-      return "string";
-    case LIST:
-      return "list";
-    default:
-      NOTREACHED();
-      return "UNKNOWN";
-  }
-}
-
-int64 Value::InterpretAsInt() const {
-  switch (type_) {
-    case NONE:
-      return 0;
-    case INTEGER:
-      return int_value_;
-    case STRING:
-      return string_value_.empty() ? 0 : 1;
-    case LIST:
-      return list_value_.empty() ? 0 : 1;
-  }
-  return 0;
-}
-
-std::string Value::ToString() const {
-  switch (type_) {
-    case NONE:
-      return "<void>";
-    case INTEGER:
-      return base::Int64ToString(int_value_);
-    case STRING:
-      return string_value_;
-    case LIST: {
-      std::string result = "[";
-      for (size_t i = 0; i < list_value_.size(); i++) {
-        if (i > 0)
-          result += ", ";
-        // TODO(brettw) maybe also want to escape quotes in the string.
-        if (list_value_[i].type() == STRING)
-          result += std::string("\"") + list_value_[i].ToString() + "\"";
-        else
-          result += list_value_[i].ToString();
-      }
-      result.push_back(']');
-      return result;
-    }
-  }
-  return std::string();
-}
-
-bool Value::VerifyTypeIs(Type t, Err* err) const {
-  if (type_ == t)
-    return true;
-
-  *err = Err(origin(), std::string("This is not a ") + DescribeType(t) + ".");
-  return false;
-}
-
-bool Value::operator==(const Value& other) const {
-  if (type_ != other.type_)
-    return false;
-
-  switch (type_) {
-    case Value::INTEGER:
-      return int_value() == other.int_value();
-    case Value::STRING:
-      return string_value() == other.string_value();
-    case Value::LIST:
-      if (list_value().size() != other.list_value().size())
-        return false;
-      for (size_t i = 0; i < list_value().size(); i++) {
-        if (list_value()[i] != other.list_value()[i])
-          return false;
-      }
-      return true;
-    default:
-      return false;
-  }
-}
-
-bool Value::operator!=(const Value& other) const {
-  return !operator==(other);
-}
diff --git a/tools/gn/value.h b/tools/gn/value.h
deleted file mode 100644
index 8802bffb157b..000000000000
--- a/tools/gn/value.h
+++ /dev/null
@@ -1,91 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_VALUE_H_
-#define TOOLS_GN_VALUE_H_
-
-#include "base/basictypes.h"
-#include "base/logging.h"
-#include "base/strings/string_piece.h"
-#include "tools/gn/err.h"
-
-class ParseNode;
-
-// Represents a variable value in the interpreter.
-class Value {
- public:
-  enum Type {
-    NONE = 0,
-    INTEGER,
-    STRING,
-    LIST
-  };
-
-  Value();
-  Value(const ParseNode* origin, Type t);
-  Value(const ParseNode* origin, int64 int_val);
-  Value(const ParseNode* origin, const base::StringPiece& str_val);
-  ~Value();
-
-  Type type() const { return type_; }
-
-  // Returns a string describing the given type.
-  static const char* DescribeType(Type t);
-
-  // Returns the node that made this. May be NULL.
-  const ParseNode* origin() const { return origin_; }
-  void set_origin(const ParseNode* o) { origin_ = o; }
-
-  int64& int_value() {
-    DCHECK(type_ == INTEGER);
-    return int_value_;
-  }
-  const int64& int_value() const {
-    DCHECK(type_ == INTEGER);
-    return int_value_;
-  }
-
-  std::string& string_value() {
-    DCHECK(type_ == STRING);
-    return string_value_;
-  }
-  const std::string& string_value() const {
-    DCHECK(type_ == STRING);
-    return string_value_;
-  }
-
-  std::vector<Value>& list_value() {
-    DCHECK(type_ == LIST);
-    return list_value_;
-  }
-  const std::vector<Value>& list_value() const {
-    DCHECK(type_ == LIST);
-    return list_value_;
-  }
-
-  // Returns the current value converted to an int, normally used for
-  // boolean operations. Undefined variables, empty lists, and empty strings
-  // are all interpreted as 0, otherwise 1.
-  int64 InterpretAsInt() const;
-
-  // Converts the given value to a string.
-  std::string ToString() const;
-
-  // Verifies that the value is of the given type. If it isn't, returns
-  // false and sets the error.
-  bool VerifyTypeIs(Type t, Err* err) const;
-
-  // Compares values. Only the "value" is compared, not the origin.
-  bool operator==(const Value& other) const;
-  bool operator!=(const Value& other) const;
-
- private:
-  Type type_;
-  std::string string_value_;
-  int64 int_value_;
-  std::vector<Value> list_value_;
-  const ParseNode* origin_;
-};
-
-#endif  // TOOLS_GN_VALUE_H_
diff --git a/tools/gn/value_extractors.cc b/tools/gn/value_extractors.cc
deleted file mode 100644
index 56a2be28b09a..000000000000
--- a/tools/gn/value_extractors.cc
+++ /dev/null
@@ -1,102 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "tools/gn/value_extractors.h"
-
-#include "tools/gn/err.h"
-#include "tools/gn/label.h"
-#include "tools/gn/source_dir.h"
-#include "tools/gn/source_file.h"
-
-namespace {
-
-// This extractor rejects files with system-absolute file paths. If we need
-// that in the future, we'll have to add some flag to control this.
-struct RelativeFileConverter {
-  RelativeFileConverter(const SourceDir& current_dir_in)
-      : current_dir(current_dir_in) {}
-  bool operator()(const Value& v, SourceFile* out, Err* err) const {
-    if (!v.VerifyTypeIs(Value::STRING, err))
-      return false;
-    *out = current_dir.ResolveRelativeFile(v.string_value());
-    if (out->is_system_absolute()) {
-      *err = Err(v, "System-absolute file path.",
-          "You can't list a system-absolute file path here. Please include "
-          "only files in\nthe source tree. Maybe you meant to begin with two "
-          "slashes to indicate an\nabsolute path in the source tree?");
-      return false;
-    }
-    return true;
-  }
-  const SourceDir& current_dir;
-};
-
-struct RelativeDirConverter {
-  RelativeDirConverter(const SourceDir& current_dir_in)
-      : current_dir(current_dir_in) {}
-  bool operator()(const Value& v, SourceDir* out, Err* err) const {
-    if (!v.VerifyTypeIs(Value::STRING, err))
-      return false;
-    *out = current_dir.ResolveRelativeDir(v.string_value());
-    return true;
-  }
-  const SourceDir& current_dir;
-};
-
-struct LabelResolver {
-  LabelResolver(const SourceDir& current_dir_in,
-                const Label& current_toolchain_in)
-      : current_dir(current_dir_in),
-        current_toolchain(current_toolchain_in) {}
-  bool operator()(const Value& v, Label* out, Err* err) const {
-    if (!v.VerifyTypeIs(Value::STRING, err))
-      return false;
-    *out = Label::Resolve(current_dir, current_toolchain, v, err);
-    return !err->has_error();
-  }
-  const SourceDir& current_dir;
-  const Label& current_toolchain;
-};
-
-}  // namespace
-
-bool ExtractListOfStringValues(const Value& value,
-                               std::vector<std::string>* dest,
-                               Err* err) {
-  if (!value.VerifyTypeIs(Value::LIST, err))
-    return false;
-  const std::vector<Value>& input_list = value.list_value();
-  dest->reserve(input_list.size());
-  for (size_t i = 0; i < input_list.size(); i++) {
-    if (!input_list[i].VerifyTypeIs(Value::STRING, err))
-      return false;
-    dest->push_back(input_list[i].string_value());
-  }
-  return true;
-}
-
-bool ExtractListOfRelativeFiles(const Value& value,
-                                const SourceDir& current_dir,
-                                std::vector<SourceFile>* files,
-                                Err* err) {
-  return ListValueExtractor(value, files, err,
-                            RelativeFileConverter(current_dir));
-}
-
-bool ExtractListOfRelativeDirs(const Value& value,
-                               const SourceDir& current_dir,
-                               std::vector<SourceDir>* dest,
-                               Err* err) {
-  return ListValueExtractor(value, dest, err,
-                            RelativeDirConverter(current_dir));
-}
-
-bool ExtractListOfLabels(const Value& value,
-                         const SourceDir& current_dir,
-                         const Label& current_toolchain,
-                         std::vector<Label>* dest,
-                         Err* err) {
-  return ListValueExtractor(value, dest, err,
-                            LabelResolver(current_dir, current_toolchain));
-}
diff --git a/tools/gn/value_extractors.h b/tools/gn/value_extractors.h
deleted file mode 100644
index 556f44fd2ee6..000000000000
--- a/tools/gn/value_extractors.h
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright (c) 2013 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef TOOLS_GN_VALUE_EXTRACTORS_H_
-#define TOOLS_GN_VALUE_EXTRACTORS_H_
-
-#include <string>
-#include <vector>
-
-#include "tools/gn/value.h"
-
-class Err;
-class Label;
-class SourceDir;
-class SourceFile;
-
-// Sets the error and returns false on failure.
-template<typename T, class Converter>
-bool ListValueExtractor(const Value& value, std::vector<T>* dest,
-                        Err* err,
-                        const Converter& converter) {
-  if (!value.VerifyTypeIs(Value::LIST, err))
-    return false;
-  const std::vector<Value>& input_list = value.list_value();
-  dest->resize(input_list.size());
-  for (size_t i = 0; i < input_list.size(); i++) {
-    if (!converter(input_list[i], &(*dest)[i], err))
-      return false;
-  }
-  return true;
-}
-
-// On failure, returns false and sets the error.
-bool ExtractListOfStringValues(const Value& value,
-                               std::vector<std::string>* dest,
-                               Err* err);
-
-// Looks for a list of source files relative to a given current dir.
-bool ExtractListOfRelativeFiles(const Value& value,
-                                const SourceDir& current_dir,
-                                std::vector<SourceFile>* files,
-                                Err* err);
-
-// Looks for a list of source directories relative to a given current dir.
-bool ExtractListOfRelativeDirs(const Value& value,
-                               const SourceDir& current_dir,
-                               std::vector<SourceDir>* dest,
-                               Err* err);
-
-bool ExtractListOfLabels(const Value& value,
-                         const SourceDir& current_dir,
-                         const Label& current_toolchain,
-                         std::vector<Label>* dest,
-                         Err* err);
-
-#endif  // TOOLS_GN_VALUE_EXTRACTORS_H_