Remove buffer duration calculation from WebMClusterParser and update SourceBufferStream accordingly

media/webm/webm_cluster_parser.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_WEBM_WEBM_CLUSTER_PARSER_H_
 #define MEDIA_WEBM_WEBM_CLUSTER_PARSER_H_
 
 #include <deque>
 #include <string>
 
@@ skipping 41 matching lines @@
 
     bool AddBuffer(const scoped_refptr<StreamParserBuffer>& buffer);
 
     // Clears all buffer state.
     void Reset();
 
     // Clears only the |buffers_|.
     void ClearBufferQueue();
 
    private:
-    // Sets the duration of all the buffers in |delayed_buffers_|
-    // and then moves these buffers into |buffers_|. |delayed_buffers_|
-    // is empty when this call returns.
-    void SetDelayedBufferDurations(base::TimeDelta duration);
-
     // Adds the buffer to |buffers_|. |buffer| must have its duration set.
     void AddToBufferQueue(const scoped_refptr<StreamParserBuffer>& buffer);
 
     int track_num_;
     BufferQueue buffers_;
-    BufferQueue delayed_buffers_;
   };
 
   // WebMParserClient methods.
   virtual WebMParserClient* OnListStart(int id) OVERRIDE;
   virtual bool OnListEnd(int id) OVERRIDE;
   virtual bool OnUInt(int id, int64 val) OVERRIDE;
   virtual bool OnBinary(int id, const uint8* data, int size) OVERRIDE;
 
   bool ParseBlock(const uint8* buf, int size, int duration);
   bool OnBlock(int track_num, int timecode, int duration, int flags,
@@ skipping 16 matching lines @@
 
   Track audio_;
   Track video_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(WebMClusterParser);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_WEBM_WEBM_CLUSTER_PARSER_H_