MSE: Lift timestampOffset and appendWindow[Start,End] storage to WebSourceBufferImpl

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"
 #include "base/compiler_specific.h"
+#include "base/time/time.h"
 #include "third_party/WebKit/public/platform/WebSourceBuffer.h"
 
 namespace media {
 class ChunkDemuxer;
 }
 
 namespace content {
 
 class WebSourceBufferImpl : public blink::WebSourceBuffer {
  public:
@@ skipping 11 matching lines @@
   virtual void remove(double start, double end);
   virtual bool setTimestampOffset(double offset);
   virtual void setAppendWindowStart(double start);
   virtual void setAppendWindowEnd(double end);
   virtual void removedFromMediaSource();
 
  private:
   std::string id_;
   media::ChunkDemuxer* demuxer_;  // Owned by WebMediaPlayerImpl.
 
+  // Controls the offset applied to timestamps when processing appended media
+  // segments. It is initially 0, which indicates that no offset is being
+  // applied. Both setTimestampOffset() and append() may update this value.
+  base::TimeDelta timestamp_offset_;
+
+  base::TimeDelta append_window_start_;
+  base::TimeDelta append_window_end_;
+
   DISALLOW_COPY_AND_ASSIGN(WebSourceBufferImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_WEBSOURCEBUFFER_IMPL_H_