Defer loading of audio/video tags while prerendering.

content/renderer/mock_content_renderer_client.cc

Index: content/renderer/mock_content_renderer_client.cc
diff --git a/content/renderer/mock_content_renderer_client.cc b/content/renderer/mock_content_renderer_client.cc
index b8a8e6de758b0c717e1ae2d1d758f643906794f1..02e0d4bcc2aaae9af4eacc6617e6ee4ddc73628f 100644
--- a/content/renderer/mock_content_renderer_client.cc
+++ b/content/renderer/mock_content_renderer_client.cc
@@ -37,6 +37,21 @@ bool MockContentRendererClient::OverrideCreatePlugin(
   return false;
 }
 
+bool MockContentRendererClient::ShouldOverrideCreateWebMediaPlayer(
+    RenderView* view)  {
+  return false;
+}
+
+void MockContentRendererClient::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) {
+}
+
 void MockContentRendererClient::ShowErrorPage(RenderView* render_view,
                                               WebKit::WebFrame* frame,
                                               int http_status_code) {