cc: Implement DelegatingRender::drawFrame() method.

content/browser/renderer_host/render_widget_host_impl.h

Index: content/browser/renderer_host/render_widget_host_impl.h
diff --git a/content/browser/renderer_host/render_widget_host_impl.h b/content/browser/renderer_host/render_widget_host_impl.h
index 7549ac2d3fa9199a5ee27dc8c476a1a0c73cefc9..33e6f7b32e75d2b6038efd9b0b154326322eead2 100644
--- a/content/browser/renderer_host/render_widget_host_impl.h
+++ b/content/browser/renderer_host/render_widget_host_impl.h
@@ -556,7 +556,7 @@ class CONTENT_EXPORT RenderWidgetHostImpl : virtual public RenderWidgetHost,
                                          int32 route_id,
                                          const gfx::Size& size,
                                          int32 gpu_process_host_id);
-  void OnSwapCompositorFrame(const cc::CompositorFrame& frame);
+  void OnSwapCompositorFrame(cc::CompositorFrame& frame);

[piman, 2013/01/08 04:22:23]

Why is this const going away?

[danakj, 2013/01/08 15:28:25]

Because the compositor frame has scoped ptrs, and I want to record what was in
the frame for testing. To do that I either:
- Make a clone of all the render passes/resources/etc.
- Make it non-const and steal them.

I think non-const seems reasonable, when you SendToParent, you give up rights to
the stuff in it, and the OutputSurface can do what it wants with it. Do you
agree?

   void OnUpdateRect(const ViewHostMsg_UpdateRect_Params& params);
   void OnUpdateIsDelayed();
   void OnInputEventAck(WebKit::WebInputEvent::Type event_type,