[Reland] Post loading tasks on the appropriate WebFrameScheduler's queue

content/renderer/renderer_blink_platform_impl.h

 // 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.
 
 #ifndef CONTENT_RENDERER_RENDERER_BLINK_PLATFORM_IMPL_H_
 #define CONTENT_RENDERER_RENDERER_BLINK_PLATFORM_IMPL_H_
 
 #include "base/compiler_specific.h"
 #include "base/id_map.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 187 matching lines @@
       const blink::WebDeviceOrientationData& data);
 
   // Notifies blink::WebBatteryStatusListener that battery status has changed.
   void MockBatteryStatusChangedForTesting(
       const blink::WebBatteryStatus& status);
 
   WebDatabaseObserverImpl* web_database_observer_impl() {
     return web_database_observer_impl_.get();
   }
 
+ protected:
+  scoped_refptr<base::SingleThreadTaskRunner>
+  LoadingTaskRunnerForCurrentThread() override;
+
  private:
   bool CheckPreparsedJsCachingEnabled() const;
 
   // Factory that takes a type and return PlatformEventObserverBase that matches
   // it.
   static PlatformEventObserverBase* CreatePlatformEventObserverFromType(
       blink::WebPlatformEventType type);
 
   // Use the data previously set via SetMockDevice...DataForTesting() and send
   // them to the registered listener.
@@ skipping 29 matching lines @@
 
   scoped_ptr<blink::WebBlobRegistry> blob_registry_;
 
   WebPublicSuffixListImpl public_suffix_list_;
 
   scoped_ptr<DeviceLightEventPump> device_light_event_pump_;
   scoped_ptr<DeviceMotionEventPump> device_motion_event_pump_;
   scoped_ptr<DeviceOrientationEventPump> device_orientation_event_pump_;
 
   scoped_refptr<base::SingleThreadTaskRunner> default_task_runner_;
+  scoped_refptr<base::SingleThreadTaskRunner> loading_task_runner_;
   scoped_refptr<IPC::SyncMessageFilter> sync_message_filter_;
   scoped_refptr<ThreadSafeSender> thread_safe_sender_;
   scoped_refptr<QuotaMessageFilter> quota_message_filter_;
 
   scoped_ptr<WebDatabaseObserverImpl> web_database_observer_impl_;
 
   cc_blink::WebCompositorSupportImpl compositor_support_;
 
   scoped_ptr<blink::WebScrollbarBehavior> web_scrollbar_behavior_;
 
   scoped_ptr<BatteryStatusDispatcher> battery_status_dispatcher_;
 
   // Handle to the Vibration mojo service.
   device::VibrationManagerPtr vibration_manager_;
 
   IDMap<PlatformEventObserverBase, IDMapOwnPointer> platform_event_observers_;
 
   DISALLOW_COPY_AND_ASSIGN(RendererBlinkPlatformImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDERER_BLINK_PLATFORM_IMPL_H_