Clean-up coding style at apps folder

BUG=

Review URL: https://codereview.chromium.org/403573003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@284074 0039d316-1c4b-4281-b951-d872f2087c98

AUTHORS

@@ -152,6 +152,7 @@ Hongbo Min <hongbo.min@intel.com>
 Horia Olaru <horia.olaru@gmail.com>
 Horia Olaru <olaru@adobe.com>
 Hosung You <hosung.you@samsung.com>
+Hwanseung Lee <rucifer1217@gmail.com>
 Hyunki Baik <hyunki.baik@samsung.com>
 Hyungwook Lee <withlhw@gmail.com>
 Ibrar Ahmed <ibrar.ahmad@gmail.com>

apps/app_window.cc

@@ -5,6 +5,8 @@
 #include "apps/app_window.h"
 
 #include <algorithm>
+#include <string>
+#include <vector>
 
 #include "apps/app_window_geometry_cache.h"
 #include "apps/app_window_registry.h"

apps/app_window.h

@@ -5,6 +5,9 @@
 #ifndef APPS_APP_WINDOW_H_
 #define APPS_APP_WINDOW_H_
 
+#include <string>
+#include <vector>
+
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/sessions/session_id.h"

apps/app_window_contents.cc

@@ -4,6 +4,9 @@
 
 #include "apps/app_window_contents.h"
 
+#include <utility>
+#include <string>
+
 #include "apps/ui/native_app_window.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/common/extensions/api/app_window.h"

apps/app_window_registry.cc

@@ -2,8 +2,12 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "apps/app_window.h"
 #include "apps/app_window_registry.h"
+
+#include <string>
+#include <vector>
+
+#include "apps/app_window.h"
 #include "apps/apps_client.h"
 #include "apps/ui/native_app_window.h"
 #include "components/keyed_service/content/browser_context_dependency_manager.h"

apps/app_window_registry.h

@@ -6,6 +6,8 @@
 #define APPS_APP_WINDOW_REGISTRY_H_
 
 #include <list>
+#include <string>
+#include <set>
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"

apps/custom_launcher_page_contents.cc

@@ -4,6 +4,8 @@
 
 #include "apps/custom_launcher_page_contents.h"
 
+#include <string>
+
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/extensions/chrome_extension_web_contents_observer.h"
 #include "content/public/browser/browser_context.h"

apps/launcher.cc

@@ -4,6 +4,9 @@
 
 #include "apps/launcher.h"
 
+#include <utility>
+#include <set>
+
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/files/file_path.h"