Introduce TimeSource notifications to the VideoRenderer.

media/base/mock_filters.h

Index: media/base/mock_filters.h
diff --git a/media/base/mock_filters.h b/media/base/mock_filters.h
index c4249c500632f2d608e9dc0806780cbe27cbac6a..5a7cab7100c33e673cfb717ad2f8b35861e57bb3 100644
--- a/media/base/mock_filters.h
+++ b/media/base/mock_filters.h
@@ -134,6 +134,8 @@ class MockVideoRenderer : public VideoRenderer {
                      const base::Closure& waiting_for_decryption_key_cb));
   MOCK_METHOD1(Flush, void(const base::Closure& callback));
   MOCK_METHOD1(StartPlayingFrom, void(base::TimeDelta));
+  MOCK_METHOD0(OnTimeProgressing, void());
+  MOCK_METHOD0(OnTimeStopped, void());
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MockVideoRenderer);