Move pending seek cancellation logic from ChunkDemuxerStream to ChunkDemuxer.

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 158 matching lines @@
 
   // Sets |duration_| to |new_duration|, sets |user_specified_duration_| to -1
   // and notifies |host_|.
   void UpdateDuration(base::TimeDelta new_duration);
 
   // Returns the ranges representing the buffered data in the demuxer.
   Ranges<base::TimeDelta> GetBufferedRanges() const;
 
   mutable base::Lock lock_;
   State state_;
+  bool cancel_next_seek_;
 
   DemuxerHost* host_;
   base::Closure open_cb_;
   NeedKeyCB need_key_cb_;
   AddTextTrackCB add_text_track_cb_;
   // Callback used to report error strings that can help the web developer
   // figure out what is wrong with the content.
   LogCB log_cb_;
 
   PipelineStatusCB init_cb_;
@@ skipping 22 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_