Plumb media data from renderers up to MediaInternals in the browser process.

content/browser/renderer_host/media/mock_media_observer.h

Index: content/browser/renderer_host/media/mock_media_observer.h
diff --git a/content/browser/renderer_host/media/mock_media_observer.h b/content/browser/renderer_host/media/mock_media_observer.h
index 3260265665bbea78a566979df092153c9f258b41..b98099d569122a5d2b7a5992cf49c37f5797413b 100644
--- a/content/browser/renderer_host/media/mock_media_observer.h
+++ b/content/browser/renderer_host/media/mock_media_observer.h
@@ -10,6 +10,7 @@
 
 #include "base/basictypes.h"
 #include "content/browser/renderer_host/media/media_observer.h"
+#include "media/base/media_log_event.h"
 #include "testing/gmock/include/gmock/gmock.h"
 
 class MockMediaObserver : public MediaObserver {
@@ -25,6 +26,8 @@ class MockMediaObserver : public MediaObserver {
                void(void* host, int stream_id, const std::string& status));
   MOCK_METHOD3(OnSetAudioStreamVolume,
                void(void* host, int stream_id, double volume));
+  MOCK_METHOD2(OnMediaEvent,
+               void(int source, const media::MediaLogEvent& event));
 };
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_MEDIA_MOCK_MEDIA_OBSERVER_H_