cc: Use the correct internal format for glCopyTexImage2D calls.

cc/surfaces/surface_display_output_surface.cc

Index: cc/surfaces/surface_display_output_surface.cc
diff --git a/cc/surfaces/surface_display_output_surface.cc b/cc/surfaces/surface_display_output_surface.cc
index b0986144932d7ec43cfb4259c9c27363368cc1ae..397cf2fddd2c9a6e5f8af0029f05e573dab8ce33 100644
--- a/cc/surfaces/surface_display_output_surface.cc
+++ b/cc/surfaces/surface_display_output_surface.cc
@@ -124,6 +124,17 @@ void SurfaceDisplayOutputSurface::DetachFromClient() {
   OutputSurface::DetachFromClient();
 }
 
+void SurfaceDisplayOutputSurface::BindFramebuffer() {
+  // This is a delegating output surface, no framebuffer/direct drawing support.
+  NOTREACHED();
+}
+
+uint32_t SurfaceDisplayOutputSurface::GetFramebufferCopyTextureFormat() {
+  // This is a delegating output surface, no framebuffer/direct drawing support.
+  NOTREACHED();
+  return 0;
+}
+
 void SurfaceDisplayOutputSurface::ReturnResources(
     const ReturnedResourceArray& resources) {
   CompositorFrameAck ack;