Make cc output surface creation async

content/browser/renderer_host/compositor_impl_android.h

Index: content/browser/renderer_host/compositor_impl_android.h
diff --git a/content/browser/renderer_host/compositor_impl_android.h b/content/browser/renderer_host/compositor_impl_android.h
index e3cc42e1ad56e9b43d6428bb2d67ed5e4bfd885a..ef279026c546ce6197b1be4f650bbb4048d1bb2c 100644
--- a/content/browser/renderer_host/compositor_impl_android.h
+++ b/content/browser/renderer_host/compositor_impl_android.h
@@ -74,8 +74,7 @@ class CONTENT_EXPORT CompositorImpl
   virtual void Layout() OVERRIDE;
   virtual void ApplyScrollAndScale(const gfx::Vector2d& scroll_delta,
                                    float page_scale) OVERRIDE {}
-  virtual scoped_ptr<cc::OutputSurface> CreateOutputSurface(bool fallback)
-      OVERRIDE;
+  virtual void RequestNewOutputSurface(bool fallback) OVERRIDE;
   virtual void DidInitializeOutputSurface() OVERRIDE {}
   virtual void WillCommit() OVERRIDE {}
   virtual void DidCommit() OVERRIDE;
@@ -106,6 +105,7 @@ class CONTENT_EXPORT CompositorImpl
   };
   void PostComposite(CompositingTrigger trigger);
   void Composite(CompositingTrigger trigger);
+  void CreateOutputSurface(bool fallback);
 
   bool WillCompositeThisFrame() const {
     return current_composite_task_ &&