Remove MockMediaInternals and incestuous usage.

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 5f7fb847b3ce2b78388e4a901c9fc1d999ae7156..c3543f3002b629a2ede11cdd553efe64fe8b40ac 100644
--- a/content/browser/renderer_host/media/mock_media_observer.h
+++ b/content/browser/renderer_host/media/mock_media_observer.h
@@ -8,7 +8,6 @@
 #include <string>
 
 #include "base/basictypes.h"
-#include "content/browser/media/media_internals.h"
 #include "content/public/browser/media_observer.h"
 #include "media/audio/audio_parameters.h"
 #include "media/base/media_log_event.h"
@@ -39,27 +38,6 @@ class MockMediaObserver : public MediaObserver {
                     bool clipped));
 };
 
-class MockMediaInternals : public MediaInternals {
- public:
-  MockMediaInternals();
-  virtual ~MockMediaInternals();
-
-  MOCK_METHOD2(OnDeleteAudioStream,
-               void(void* host, int stream_id));
-  MOCK_METHOD3(OnSetAudioStreamPlaying,
-               void(void* host, int stream_id, bool playing));
-  MOCK_METHOD4(OnAudioStreamCreated,
-               void(void* host, int stream_id,
-                    const media::AudioParameters& params,
-                    const std::string& input_device_id));
-  MOCK_METHOD3(OnSetAudioStreamStatus,
-               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));
-};
-
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_MEDIA_MOCK_MEDIA_OBSERVER_H_