Introduce DecoderPerfTest

This is a microbenchmark that measures the raw throughput of the GLES2 decoders.

Bug: 775212
Cq-Include-Trybots: master.tryserver.chromium.android:android_optional_gpu_tests_rel;master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel
Change-Id: Ic701af8c5e83a5eee347f481ee5319dfa6fc0ffc
Reviewed-on: https://chromium-review.googlesource.com/719462
Commit-Queue: Antoine Labour <piman@chromium.org>
Reviewed-by: Victor Miura <vmiura@chromium.org>
Cr-Commit-Position: refs/heads/master@{#509270}

gpu/BUILD.gn

@@ -402,9 +402,10 @@ test("gpu_perftests") {
   ]
 
   deps = [
+    ":gpu",
     "//base",
     "//base/test:test_support",
-    "//gpu/command_buffer/service",
+    "//gpu/command_buffer/client:gles2_implementation",
     "//testing/gmock",
     "//testing/gtest",
     "//testing/perf",
@@ -425,6 +426,36 @@ test("gpu_perftests") {
   assert_no_deps = [ "//chrome" ]
 }
 
+test("command_buffer_perftests") {
+  sources = [
+    "command_buffer/tests/decoder_perftest.cc",
+    "perftests/run_all_tests.cc",
+  ]
+
+  deps = [
+    ":gpu",
+    "//base",
+    "//base/test:test_support",
+    "//gpu/command_buffer/client:gles2_implementation",
+    "//testing/gtest",
+    "//testing/perf",
+    "//ui/gfx/geometry",
+    "//ui/gl",
+    "//ui/gl/init",
+  ]
+
+  data = [
+    # Needed for isolate script to execute.
+    "//testing/scripts/common.py",
+    "//testing/xvfb.py",
+    "//testing/scripts/run_gtest_perf_test.py",
+    "//tools/perf/generate_legacy_perf_dashboard_json.py",
+  ]
+
+  # This target should not require the Chrome executable to run.
+  assert_no_deps = [ "//chrome" ]
+}
+
 fuzzer_test("gpu_fuzzer") {
   sources = [
     "command_buffer/tests/fuzzer_main.cc",

gpu/command_buffer/service/command_buffer_direct.h

@@ -69,6 +69,10 @@ class GPU_EXPORT CommandBufferDirect : public CommandBuffer,
 
   scoped_refptr<Buffer> CreateTransferBufferWithId(size_t size, int32_t id);
 
+  void SetGetOffsetForTest(int32_t get_offset) {
+    service_.SetGetOffsetForTest(get_offset);
+  }
+
  private:
   CommandBufferService service_;
   SyncPointManager* sync_point_manager_;

gpu/command_buffer/service/command_buffer_service.h

@@ -120,6 +120,10 @@ class GPU_EXPORT CommandBufferService : public CommandBufferServiceBase {
 
   int32_t put_offset() const { return put_offset_; }
 
+  void SetGetOffsetForTest(int32_t get_offset) {
+    state_.get_offset = get_offset;
+  }
+
  private:
   CommandBufferServiceClient* client_;
   TransferBufferManager* transfer_buffer_manager_;