[Android] Fix a flicker in stopping Chrome

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 0b60c2349e3ae2e0c0ce3470ffc46c42beca5b48..0c8ae5b6b659f8195f598ebf14ce9be7350da691 100644
--- a/content/browser/renderer_host/compositor_impl_android.h
+++ b/content/browser/renderer_host/compositor_impl_android.h
@@ -61,6 +61,8 @@ class CONTENT_EXPORT CompositorImpl
   virtual void SetNeedsComposite() override;
   virtual ui::UIResourceProvider& GetUIResourceProvider() override;
   virtual ui::ResourceManager& GetResourceManager() override;
+  virtual void Pause() override;
+  virtual void Resume() override;
 
   // LayerTreeHostClient implementation.
   virtual void WillBeginMainFrame(int frame_id) override {}
@@ -192,6 +194,8 @@ class CONTENT_EXPORT CompositorImpl
   base::TimeDelta vsync_period_;
   base::TimeTicks last_vsync_;
 
+  bool paused_;
+
   base::WeakPtrFactory<CompositorImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(CompositorImpl);