Forward input tasks to the Blink scheduler

content/renderer/render_thread_impl.h

Index: content/renderer/render_thread_impl.h
diff --git a/content/renderer/render_thread_impl.h b/content/renderer/render_thread_impl.h
index 675cadb49f42110f6d64d1999c9263716a3e901e..df7f4aab00edaca385f8dc2f98f410d671401e09 100644
--- a/content/renderer/render_thread_impl.h
+++ b/content/renderer/render_thread_impl.h
@@ -44,6 +44,7 @@ class WebMediaStreamCenterClient;
 
 namespace base {
 class MessageLoopProxy;
+class SingleThreadTaskRunner;
 class Thread;
 }
 
@@ -92,6 +93,7 @@ class InputHandlerManager;
 class MediaStreamCenter;
 class MemoryObserver;
 class PeerConnectionDependencyFactory;
+class SchedulerProxyTaskRunnerBase;
 class MidiMessageFilter;
 class NetInfoDispatcher;
 class P2PSocketDispatcher;
@@ -200,6 +202,9 @@ class CONTENT_EXPORT RenderThreadImpl : public RenderThread,
     return webkit_platform_support_.get();
   }
 
+  scoped_refptr<base::SingleThreadTaskRunner> MainThreadCompositorTaskRunner()
+      const;
+
   IPC::ForwardingMessageFilter* compositor_output_surface_filter() const {
     return compositor_output_surface_filter_.get();
   }
@@ -568,6 +573,10 @@ class CONTENT_EXPORT RenderThreadImpl : public RenderThread,
 
   scoped_ptr<MemoryObserver> memory_observer_;
 
+  scoped_refptr<SchedulerProxyTaskRunnerBase>
+      main_thread_compositor_task_runner_;
+  scoped_refptr<SchedulerProxyTaskRunnerBase> main_thread_input_task_runner_;
+
   // Compositor settings
   bool is_gpu_rasterization_enabled_;
   bool is_gpu_rasterization_forced_;