Revert of Make SingleThreadProxy a SchedulerClient

content/renderer/gpu/render_widget_compositor.h

Index: content/renderer/gpu/render_widget_compositor.h
diff --git a/content/renderer/gpu/render_widget_compositor.h b/content/renderer/gpu/render_widget_compositor.h
index 79a03b4e708a832f63388f0cb60cef7c2af5bb13..e0541ec4ec0e68f77f444b0cd68c536bc164708a 100644
--- a/content/renderer/gpu/render_widget_compositor.h
+++ b/content/renderer/gpu/render_widget_compositor.h
@@ -44,7 +44,9 @@
   virtual ~RenderWidgetCompositor();
 
   const base::WeakPtr<cc::InputHandler>& GetInputHandler();
+  void SetSuppressScheduleComposite(bool suppress);
   bool BeginMainFrameRequested() const;
+  void UpdateAnimations(base::TimeTicks time);
   void SetNeedsDisplayOnAllLayers();
   void SetRasterizeOnlyVisibleContent();
   void UpdateTopControlsState(cc::TopControlsState constraints,
@@ -141,6 +143,7 @@
   virtual void RateLimitSharedMainThreadContext() OVERRIDE;
 
   // cc::LayerTreeHostSingleThreadClient implementation.
+  virtual void ScheduleComposite() OVERRIDE;
   virtual void ScheduleAnimation() OVERRIDE;
   virtual void DidPostSwapBuffers() OVERRIDE;
   virtual void DidAbortSwapBuffers() OVERRIDE;
@@ -151,6 +154,7 @@
   void Initialize(cc::LayerTreeSettings settings);
 
   bool threaded_;
+  bool suppress_schedule_composite_;
   RenderWidget* widget_;
   scoped_ptr<cc::LayerTreeHost> layer_tree_host_;
 };