content: Add task queue manager

content/renderer/renderer_blink_platform_impl.h

Index: content/renderer/renderer_blink_platform_impl.h
diff --git a/content/renderer/renderer_blink_platform_impl.h b/content/renderer/renderer_blink_platform_impl.h
index 9d881bffbe0027d20161cac9aadab7e6c18f331d..f8f93cd6a5f4904bfe7975f0b287cae7e5daea40 100644
--- a/content/renderer/renderer_blink_platform_impl.h
+++ b/content/renderer/renderer_blink_platform_impl.h
@@ -44,6 +44,7 @@ class PlatformEventObserverBase;
 class QuotaMessageFilter;
 class RendererClipboardClient;
 class RenderView;
+class TaskQueueManager;
 class ThreadSafeSender;
 class WebClipboardImpl;
 class WebDatabaseObserverImpl;
@@ -58,6 +59,7 @@ class CONTENT_EXPORT RendererBlinkPlatformImpl : public BlinkPlatformImpl {
     plugin_refresh_allowed_ = plugin_refresh_allowed;
   }
   // Platform methods:
+  virtual void callOnMainThread(void (*func)(void*), void* context);

[alexclarke, 2014/10/13 10:06:22]

Personally I'm OK with a naked function pointer, but I'd expect somebody to ask
why you're not using a callback.

[Sami, 2014/10/13 18:16:21]

This is an existing function that's called from Blink so we can't easily use
anything fancier.

   virtual blink::WebClipboard* clipboard();
   virtual blink::WebMimeRegistry* mimeRegistry();
   virtual blink::WebFileUtilities* fileUtilities();
@@ -181,6 +183,8 @@ class CONTENT_EXPORT RendererBlinkPlatformImpl : public BlinkPlatformImpl {
     return web_database_observer_impl_.get();
   }
 
+  TaskQueueManager* task_queue_manager() { return task_queue_manager_.get(); }
+
  private:
   bool CheckPreparsedJsCachingEnabled() const;
 
@@ -193,6 +197,8 @@ class CONTENT_EXPORT RendererBlinkPlatformImpl : public BlinkPlatformImpl {
   // them to the registered listener.
   void SendFakeDeviceEventDataForTesting(blink::WebPlatformEventType type);
 
+  scoped_ptr<TaskQueueManager> task_queue_manager_;
+
   scoped_ptr<RendererClipboardClient> clipboard_client_;
   scoped_ptr<WebClipboardImpl> clipboard_;