Add SupportsConfigChanges() to DemuxerStream.

media/filters/ffmpeg_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.
 
 // Implements the Demuxer interface using FFmpeg's libavformat.  At this time
 // will support demuxing any audio/video format thrown at it.  The streams
 // output mime types audio/x-ffmpeg and video/x-ffmpeg and include an integer
 // key FFmpegCodecID which contains the CodecID enumeration value.  The CodecIDs
 // can be used to create and initialize the corresponding FFmpeg decoder.
 //
@@ skipping 63 matching lines @@
   // Empties the queues and ignores any additional calls to Read().
   void Stop();
 
   // Returns the duration of this stream.
   base::TimeDelta duration();
 
   // DemuxerStream implementation.
   virtual Type type() OVERRIDE;
   virtual void Read(const ReadCB& read_cb) OVERRIDE;
   virtual void EnableBitstreamConverter() OVERRIDE;
+  virtual bool SupportsConfigChanges() OVERRIDE;
   virtual AudioDecoderConfig audio_decoder_config() OVERRIDE;
   virtual VideoDecoderConfig video_decoder_config() OVERRIDE;
 
   // Returns the range of buffered data in this stream.
   Ranges<base::TimeDelta> GetBufferedRanges() const;
 
   // Returns elapsed time based on the already queued packets.
   // Used to determine stream duration when it's not known ahead of time.
   base::TimeDelta GetElapsedTime() const;
 
@@ skipping 170 matching lines @@
 
   // NOTE: Weak pointers must be invalidated before all other member variables.
   base::WeakPtrFactory<FFmpegDemuxer> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(FFmpegDemuxer);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_FFMPEG_DEMUXER_H_