cc: Implement DelegatingRender::drawFrame() method.

content/browser/renderer_host/render_widget_host_impl.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_
 
 #include <deque>
 #include <list>
 #include <map>
@@ skipping 538 matching lines @@
   void OnUpdateScreenRectsAck();
   void OnRequestMove(const gfx::Rect& pos);
   void OnSetTooltipText(const string16& tooltip_text,
                         WebKit::WebTextDirection text_direction_hint);
   void OnPaintAtSizeAck(int tag, const gfx::Size& size);
   void OnCompositorSurfaceBuffersSwapped(int32 surface_id,
                                          uint64 surface_handle,
                                          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,
                        InputEventAckState ack_result);
   void OnBeginSmoothScroll(
       int gesture_id,
       const ViewHostMsg_BeginSmoothScroll_Params &params);
   void OnSelectRangeAck();
   virtual void OnFocus();
   virtual void OnBlur();
@@ skipping 294 matching lines @@
 #if defined(OS_WIN)
   std::list<HWND> dummy_windows_for_activation_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_IMPL_H_