Add Chromium-side support for SourceBuffer.appendWindowStart and SourceBuffer.appendWindowEnd.

media/filters/chunk_demuxer.h

 // Copyright (c) 2012 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 MEDIA_FILTERS_CHUNK_DEMUXER_H_
 #define MEDIA_FILTERS_CHUNK_DEMUXER_H_
 
 #include <map>
 #include <string>
 #include <utility>
@@ skipping 117 matching lines @@
   // properly, false if the offset cannot be applied because we're in the
   // middle of parsing a media segment.
   bool SetTimestampOffset(const std::string& id, base::TimeDelta offset);
 
   // Called to signal changes in the "end of stream"
   // state. UnmarkEndOfStream() must not be called if a matching
   // MarkEndOfStream() has not come before it.
   void MarkEndOfStream(PipelineStatus status);
   void UnmarkEndOfStream();
 
+  // Set the append window start and end values for the source buffer
+  // associated with |id|.
+  void SetAppendWindowStart(const std::string& id, base::TimeDelta start);
+  void SetAppendWindowEnd(const std::string& id, base::TimeDelta end);
+
   void Shutdown();
 
   void SetMemoryLimitsForTesting(int memory_limit);
 
  private:
   enum State {
     WAITING_FOR_INIT,
     INITIALIZING,
     INITIALIZED,
     ENDED,
@@ skipping 106 matching lines @@
   // removed with RemoveID() but can not be re-added (yet).
   std::string source_id_audio_;
   std::string source_id_video_;
 
   DISALLOW_COPY_AND_ASSIGN(ChunkDemuxer);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_CHUNK_DEMUXER_H_