Support for defered media load to cast_content_render_client.

chromecast/renderer/cast_content_renderer_client.h

Index: chromecast/renderer/cast_content_renderer_client.h
diff --git a/chromecast/renderer/cast_content_renderer_client.h b/chromecast/renderer/cast_content_renderer_client.h
index 7b60e6e83d15f3a5526427cefe6a2d588903a0a5..67c4529d71c9be45c0bf143bc891e1eae48becfd 100644
--- a/chromecast/renderer/cast_content_renderer_client.h
+++ b/chromecast/renderer/cast_content_renderer_client.h
@@ -30,6 +30,8 @@ class CastContentRendererClient : public content::ContentRendererClient {
   scoped_ptr<media::RendererFactory> CreateMediaRendererFactory(
       content::RenderFrame* render_frame) override;
   blink::WebPrescientNetworking* GetPrescientNetworking() override;
+  void DeferMediaLoad(content::RenderFrame* render_frame,
+                      const base::Closure& closure) override;
 
  private:
   scoped_ptr<dns_prefetch::PrescientNetworkingDispatcher>