Enable round-tripping and updating of WebSourceBufferImpl timestamp offset

content/renderer/media/websourcebuffer_impl.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_RENDERER_MEDIA_WEBSOURCEBUFFER_IMPL_H_
 #define CONTENT_RENDERER_MEDIA_WEBSOURCEBUFFER_IMPL_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 11 matching lines @@
   WebSourceBufferImpl(const std::string& id, media::ChunkDemuxer* demuxer);
   virtual ~WebSourceBufferImpl();
 
   // blink::WebSourceBuffer implementation.
   virtual bool setMode(AppendMode mode);
   virtual blink::WebTimeRanges buffered();
   virtual void append(const unsigned char* data, unsigned length);
   virtual void abort();
   virtual void remove(double start, double end);
   virtual bool setTimestampOffset(double offset);
+  virtual double getTimestampOffset();

[acolwell GONE FROM CHROMIUM, 2014/02/25 17:24:28]

nit: s/getT/t/

[wolenetz, 2014/02/25 20:32:20]

Dropped 'get'. I added 'updated' to follow the convention of the underlying
ChunkDemuxer and SourceState implementations.

   virtual void setAppendWindowStart(double start);
   virtual void setAppendWindowEnd(double end);
   virtual void removedFromMediaSource();
 
  private:
   std::string id_;
   media::ChunkDemuxer* demuxer_;  // Owned by WebMediaPlayerImpl.
 
   DISALLOW_COPY_AND_ASSIGN(WebSourceBufferImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_WEBSOURCEBUFFER_IMPL_H_