Chrome-side implementation of media source timestamp offset

media/mp4/mp4_stream_parser.h

Index: media/mp4/mp4_stream_parser.h
diff --git a/media/mp4/mp4_stream_parser.h b/media/mp4/mp4_stream_parser.h
index 706aa65dfc69db50df0e40eba605125de1778add..dedca71261092a461646b94d34bfc3642bfb3502 100644
--- a/media/mp4/mp4_stream_parser.h
+++ b/media/mp4/mp4_stream_parser.h
@@ -26,6 +26,7 @@ class MEDIA_EXPORT MP4StreamParser : public StreamParser {
   MP4StreamParser();
   virtual ~MP4StreamParser();
 
+  // StreamParser implementation.
   virtual void Init(const InitCB& init_cb, const NewConfigCB& config_cb,
                     const NewBuffersCB& audio_cb,
                     const NewBuffersCB& video_cb,
@@ -33,6 +34,8 @@ class MEDIA_EXPORT MP4StreamParser : public StreamParser {
                     const NewMediaSegmentCB& new_segment_cb) OVERRIDE;
   virtual void Flush() OVERRIDE;
   virtual bool Parse(const uint8* buf, int size) OVERRIDE;
+  virtual void SetTimestampOffset(base::TimeDelta offset) OVERRIDE;
+  virtual void ClearTimestampOffset() OVERRIDE;
 
  private:
   enum State {