Aura: Have ui::Layer implement WebKit::WebExternalTextureLayerClient

ui/compositor/compositor.h

Index: ui/compositor/compositor.h
diff --git a/ui/compositor/compositor.h b/ui/compositor/compositor.h
index 0b129cfb41213f2cf266d2cfd468d06d151358a4..ea5772480c321aaa0cc6146331827bcf56d675cf 100644
--- a/ui/compositor/compositor.h
+++ b/ui/compositor/compositor.h
@@ -101,6 +101,7 @@ class COMPOSITOR_EXPORT Texture : public base::RefCounted<Texture> {
   void set_texture_id(unsigned int id) { texture_id_ = id; }
   bool flipped() const { return flipped_; }
   gfx::Size size() const { return size_; }
+  virtual WebKit::WebGraphicsContext3D* HostContext3D() = 0;
 
  protected:
   virtual ~Texture();
@@ -190,6 +191,10 @@ class COMPOSITOR_EXPORT Compositor
   // and the OnCompositingEnded.
   bool DrawPending() const { return swap_posted_; }
 
+  // Returns whether the drawing is issued from a separate thread
+  // (i.e. |Compositor::Initialize(true)| was called).
+  bool IsThreaded() const;
+
   // Internal functions, called back by command-buffer contexts on swap buffer
   // events.
 
@@ -209,6 +214,7 @@ class COMPOSITOR_EXPORT Compositor
                                    float scaleFactor);
   virtual WebKit::WebGraphicsContext3D* createContext3D();
   virtual void didRebindGraphicsContext(bool success);
+  virtual void didCommit();
   virtual void didCommitAndDrawFrame();
   virtual void didCompleteSwapBuffers();
   virtual void scheduleComposite();
@@ -251,6 +257,8 @@ class COMPOSITOR_EXPORT Compositor
   int last_ended_frame_;
 
   bool disable_schedule_composite_;
+
+  DISALLOW_COPY_AND_ASSIGN(Compositor);
 };
 
 }  // namespace ui