Aura: Less image transport IPCs and less code.

content/common/gpu/image_transport_surface_mac.cc

Index: content/common/gpu/image_transport_surface_mac.cc
diff --git a/content/common/gpu/image_transport_surface_mac.cc b/content/common/gpu/image_transport_surface_mac.cc
index eed9e7728a5b0d0fe233c9600b43f0b44fcd7358..02961d7a97c0b444544dc036951a9b86c369de70 100644
--- a/content/common/gpu/image_transport_surface_mac.cc
+++ b/content/common/gpu/image_transport_surface_mac.cc
@@ -43,8 +43,6 @@ class IOSurfaceImageTransportSurface : public gfx::NoOpGLSurfaceCGL,
 
  protected:
   // ImageTransportSurface implementation
-  virtual void OnNewSurfaceACK(uint64 surface_handle,
-                               TransportDIB::Handle shm_handle) OVERRIDE;
   virtual void OnBufferPresented(uint32 sync_point) OVERRIDE;
   virtual void OnResizeViewACK() OVERRIDE;
   virtual void OnResize(gfx::Size size) OVERRIDE;
@@ -268,12 +266,6 @@ void IOSurfaceImageTransportSurface::OnBufferPresented(uint32 sync_point) {
   }
 }
 
-void IOSurfaceImageTransportSurface::OnNewSurfaceACK(
-    uint64 surface_handle,
-    TransportDIB::Handle /* shm_handle */) {
-  NOTREACHED();
-}
-
 void IOSurfaceImageTransportSurface::OnResizeViewACK() {
   NOTREACHED();
 }