WebThreadImplForMessageLoop to use blink scheduler

content/child/blink_platform_impl.h

 // Copyright 2014 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 CONTENT_CHILD_BLINK_PLATFORM_IMPL_H_
 #define CONTENT_CHILD_BLINK_PLATFORM_IMPL_H_
 
 #include "base/compiler_specific.h"
 #include "base/debug/trace_event.h"
 #include "base/threading/thread_local_storage.h"
@@ skipping 24 matching lines @@
 class FlingCurveConfiguration;
 class NotificationDispatcher;
 class ThreadSafeSender;
 class WebCryptoImpl;
 class WebGeofencingProviderImpl;
 
 class CONTENT_EXPORT BlinkPlatformImpl
     : NON_EXPORTED_BASE(public blink::Platform) {
  public:
   BlinkPlatformImpl();
+  explicit BlinkPlatformImpl(
+      scoped_refptr<base::SingleThreadTaskRunner> main_thread_task_runner);
   virtual ~BlinkPlatformImpl();
 
   // Platform methods (partial implementation):
   virtual blink::WebThemeEngine* themeEngine();
   virtual blink::WebFallbackThemeEngine* fallbackThemeEngine();
   virtual blink::Platform::FileHandle databaseOpenFile(
       const blink::WebString& vfs_file_name, int desired_flags);
   virtual int databaseDeleteFile(const blink::WebString& vfs_file_name,
                                  bool sync_dir);
   virtual long databaseGetFileAttributes(
@@ skipping 100 matching lines @@
   virtual void didStopWorkerRunLoop(
       const blink::WebWorkerRunLoop& runLoop);
   virtual blink::WebCrypto* crypto();
   virtual blink::WebGeofencingProvider* geofencingProvider();
   virtual blink::WebNotificationManager* notificationManager();
 
   void SuspendSharedTimer();
   void ResumeSharedTimer();
   virtual void OnStartSharedTimer(base::TimeDelta delay) {}
 
+ protected:
+  scoped_refptr<base::SingleThreadTaskRunner> main_thread_task_runner_;
+
  private:
   static void DestroyCurrentThread(void*);
 
   void DoTimeout() {
     if (shared_timer_func_ && !shared_timer_suspended_)
       shared_timer_func_();
   }
 
+  void InternalInit();
+
   WebThemeEngineImpl native_theme_engine_;
   WebFallbackThemeEngineImpl fallback_theme_engine_;
-  base::MessageLoop* main_loop_;
   base::OneShotTimer<BlinkPlatformImpl> shared_timer_;
   void (*shared_timer_func_)();
   double shared_timer_fire_time_;
   bool shared_timer_fire_time_was_set_while_suspended_;
   int shared_timer_suspended_;  // counter
   base::ThreadLocalStorage::Slot current_thread_slot_;
   WebCryptoImpl web_crypto_;
   scoped_ptr<WebGeofencingProviderImpl> geofencing_provider_;
 
   scoped_refptr<ThreadSafeSender> thread_safe_sender_;
   scoped_refptr<NotificationDispatcher> notification_dispatcher_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_BLINK_PLATFORM_IMPL_H_