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

content/common/gpu/image_transport_surface.h

Index: content/common/gpu/image_transport_surface.h
diff --git a/content/common/gpu/image_transport_surface.h b/content/common/gpu/image_transport_surface.h
index 33c33d3d8488d6d3553c8c115d23e0c0f595e94e..0bc4bcc8f8cbd302fee0d19383c770cdea319488 100644
--- a/content/common/gpu/image_transport_surface.h
+++ b/content/common/gpu/image_transport_surface.h
@@ -71,6 +71,8 @@ class ImageTransportSurface {
                     GpuCommandBufferStub* stub,
                     const gfx::GLSurfaceHandle& handle);
 
+  virtual gfx::Size GetSize() = 0;
+
  protected:
   // Used by certain implements of PostSubBuffer to determine
   // how much needs to be copied between frames.
@@ -177,6 +179,7 @@ class PassThroughImageTransportSurface
   virtual void OnBufferPresented(uint32 sync_point) OVERRIDE;
   virtual void OnResizeViewACK() OVERRIDE;
   virtual void OnResize(gfx::Size size) OVERRIDE;
+  virtual gfx::Size GetSize() OVERRIDE;
 
  protected:
   virtual ~PassThroughImageTransportSurface();