Start using RenderFrameProxyHost objects.

content/renderer/child_frame_compositing_helper.cc

 // Copyright 2014 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.
 
 #include "content/renderer/child_frame_compositing_helper.h"
 
 #include "cc/layers/delegated_frame_provider.h"
 #include "cc/layers/delegated_frame_resource_collection.h"
 #include "cc/layers/delegated_renderer_layer.h"
 #include "cc/layers/solid_color_layer.h"
@@ skipping 169 matching lines @@
   SendCompositorFrameSwappedACKToBrowser(params);
 
   ack_pending_ = false;
 }
 
 void ChildFrameCompositingHelper::EnableCompositing(bool enable) {
   if (enable && !background_layer_.get()) {
     background_layer_ = cc::SolidColorLayer::Create();
     background_layer_->SetMasksToBounds(true);
     background_layer_->SetBackgroundColor(
-        SkColorSetARGBInline(255, 255, 255, 255));
+        SkColorSetARGBInline(255, 0, 0, 255));

[ncarter (slow), 2014/06/25 01:07:56]

A+++ would change again excellent color shipped on time.

     web_layer_.reset(new WebLayerImpl(background_layer_));
   }
 
   if (GetContainer()) {
     GetContainer()->setWebLayer(enable ? web_layer_.get() : NULL);
   } else if (frame_) {
     frame_->setRemoteWebLayer(enable ? web_layer_.get() : NULL);
   }
 }
 
@@ skipping 358 matching lines @@
                                       dest_size.height());
   }
   if (GetBrowserPluginManager()) {
     GetBrowserPluginManager()->Send(
         new BrowserPluginHostMsg_CopyFromCompositingSurfaceAck(
             host_routing_id_, GetInstanceID(), request_id, resized_bitmap));
   }
 }
 
 }  // namespace content