Remove DemuxerStream::GetAVStream() once and for all.

media/base/demuxer_stream.h

Index: media/base/demuxer_stream.h
diff --git a/media/base/demuxer_stream.h b/media/base/demuxer_stream.h
index e81423e8069bd3f4abaf902138c167641177d4c2..07dfe7119647b493b33bbed23269c7355d80bef5 100644
--- a/media/base/demuxer_stream.h
+++ b/media/base/demuxer_stream.h
@@ -15,6 +15,7 @@ namespace media {
 
 class AudioDecoderConfig;
 class Buffer;
+class VideoDecoderConfig;
 
 class MEDIA_EXPORT DemuxerStream
     : public base::RefCountedThreadSafe<DemuxerStream> {
@@ -32,13 +33,14 @@ class MEDIA_EXPORT DemuxerStream
   // object takes ownership of the buffer by AddRef()'ing the buffer.
   virtual void Read(const ReadCallback& read_callback) = 0;
 
-  // Returns an |AVStream*| if supported, or NULL.
-  virtual AVStream* GetAVStream();
-
   // Returns the audio decoder configuration. It is an error to call this method
   // if type() != AUDIO.
   virtual const AudioDecoderConfig& audio_decoder_config() = 0;
 
+  // Returns the video decoder configuration. It is an error to call this method
+  // if type() != VIDEO.
+  virtual const VideoDecoderConfig& video_decoder_config() = 0;
+
   // Returns the type of stream.
   virtual Type type() = 0;