Defer loading of audio/video tags while prerendering.

content/renderer/mock_content_renderer_client.h

Index: content/renderer/mock_content_renderer_client.h
diff --git a/content/renderer/mock_content_renderer_client.h b/content/renderer/mock_content_renderer_client.h
index ea25c4f62ef547667f9b8db17400be0d7421a0ce..f4ad87c93e390d161fd40d0d55393e5557879092 100644
--- a/content/renderer/mock_content_renderer_client.h
+++ b/content/renderer/mock_content_renderer_client.h
@@ -27,6 +27,15 @@ class MockContentRendererClient : public ContentRendererClient {
       WebKit::WebFrame* frame,
       const WebKit::WebPluginParams& params,
       WebKit::WebPlugin** plugin) OVERRIDE;
+  virtual bool ShouldOverrideCreateWebMediaPlayer(RenderView* view) OVERRIDE;
+  virtual void OverrideCreateWebMediaPlayer(
+      RenderView* render_view,
+      WebKit::WebMediaPlayerClient* client,
+      media::FilterCollection* collection,
+      media::MessageLoopFactory* message_loop_factory,
+      webkit_glue::MediaStreamClient* media_stream_client,
+      media::MediaLog* media_log,
+      webkit_glue::WebMediaPlayerImpl** player) OVERRIDE;
   virtual void ShowErrorPage(RenderView* render_view,
                              WebKit::WebFrame* frame,
                              int http_status_code) OVERRIDE;