Aura: Browser-side changes for Composite-To-Mailbox

content/port/browser/render_widget_host_view_port.h

Index: content/port/browser/render_widget_host_view_port.h
diff --git a/content/port/browser/render_widget_host_view_port.h b/content/port/browser/render_widget_host_view_port.h
index a67253f4ec0c5855281ccb9e6cb7f360665db37d..73366601820141e3c2f5541bfadcfa0c6b755a40 100644
--- a/content/port/browser/render_widget_host_view_port.h
+++ b/content/port/browser/render_widget_host_view_port.h
@@ -27,6 +27,10 @@ struct GpuHostMsg_AcceleratedSurfacePostSubBuffer_Params;
 struct ViewHostMsg_TextInputState_Params;
 struct ViewHostMsg_SelectionBounds_Params;
 
+namespace cc {
+class CompositorFrame;
+}
+
 namespace media {
 class VideoFrame;
 }
@@ -219,6 +223,10 @@ class CONTENT_EXPORT RenderWidgetHostViewPort : public RenderWidgetHostView,
   // returned only if the accelerated surface size matches.
   virtual bool HasAcceleratedSurface(const gfx::Size& desired_size) = 0;
 
+  virtual void OnSwapCompositorFrame(const cc::CompositorFrame& frame,
+                                     int render_host_id,
+                                     int route_id) {}

[piman, 2013/02/28 23:16:42]

Actually, this class is pure. You can implement the default, noop in
RenderWidgetHostViewBase.
Second thing: we shouldn't need to pass render_host_id/route_id : the view can
get it from the host (GetRoutingID(), GetProcess()->GetID()), and even then, the
view should go back to the host to send the message anyway.

+
   virtual void GetScreenInfo(WebKit::WebScreenInfo* results) = 0;
 
   // Gets the bounds of the window, in screen coordinates.