Chrome-side implementation of media source timestamp offset

media/base/stream_parser.h

Index: media/base/stream_parser.h
diff --git a/media/base/stream_parser.h b/media/base/stream_parser.h
index 3ad3cd77839e62c21c7d8436abf325d21132f834..8976ff80b08356732f5dcfde08b9080a85e40f70 100644
--- a/media/base/stream_parser.h
+++ b/media/base/stream_parser.h
@@ -86,6 +86,15 @@ class MEDIA_EXPORT StreamParser {
   // Returns true if the parse succeeds.
   virtual bool Parse(const uint8* buf, int size) = 0;
 
+  // Gives the parser a time offset to apply to the buffers it parsers,
+  // beginning at the next media segment.
+  // First parameter - The time offset.
+  virtual void SetTimestampOffset(base::TimeDelta offset) = 0;
+
+  // Called to clear the offset set from a call SetTimestampOffset(). Does
+  // nothing if SetTimestampOffset() was never called before.
+  virtual void ClearTimestampOffset() = 0;
+
  private:
   DISALLOW_COPY_AND_ASSIGN(StreamParser);
 };