Chromecast: pages default to having a black background.

chromecast/shell/renderer/cast_content_renderer_client.h

 // 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.
 
 #ifndef CHROMECAST_SHELL_RENDERER_CAST_CONTENT_RENDERER_CLIENT_H_
 #define CHROMECAST_SHELL_RENDERER_CAST_CONTENT_RENDERER_CLIENT_H_
 
 #include "content/public/renderer/content_renderer_client.h"
 
 namespace chromecast {
 namespace shell {
 
 class CastContentRendererClient : public content::ContentRendererClient {
  public:
   CastContentRendererClient() {}
   virtual ~CastContentRendererClient() {}
 
   // ContentRendererClient implementation:
   virtual void RenderThreadStarted() OVERRIDE;
+  virtual void RenderViewCreated(content::RenderView* render_view) OVERRIDE;
   virtual void AddKeySystems(
       std::vector<content::KeySystemInfo>* key_systems) OVERRIDE;
 };
 
 }  // namespace shell
 }  // namespace chromecast
 
 #endif  // CHROMECAST_SHELL_RENDERER_CAST_CONTENT_RENDERER_CLIENT_H_