Move Liveness from DemuxerStreamProvider to DemuxerStream.

media/filters/ffmpeg_demuxer.h

Index: media/filters/ffmpeg_demuxer.h
diff --git a/media/filters/ffmpeg_demuxer.h b/media/filters/ffmpeg_demuxer.h
index 82ac5dea198df901a9b60203e6efd238957795a9..76d0fbb0fd5c7014e083b086c52bfa6a0d183713 100644
--- a/media/filters/ffmpeg_demuxer.h
+++ b/media/filters/ffmpeg_demuxer.h
@@ -86,7 +86,8 @@ class FFmpegDemuxerStream : public DemuxerStream {
   }
 
   // DemuxerStream implementation.
-  Type type() override;
+  Type type() const override;
+  Liveness liveness() const override;
   void Read(const ReadCB& read_cb) override;
   void EnableBitstreamConverter() override;
   bool SupportsConfigChanges() override;
@@ -94,6 +95,8 @@ class FFmpegDemuxerStream : public DemuxerStream {
   VideoDecoderConfig video_decoder_config() override;
   VideoRotation video_rotation() override;
 
+  void SetLiveness(Liveness liveness);
+
   // Returns the range of buffered data in this stream.
   Ranges<base::TimeDelta> GetBufferedRanges() const;
 
@@ -136,6 +139,7 @@ class FFmpegDemuxerStream : public DemuxerStream {
   AudioDecoderConfig audio_config_;
   VideoDecoderConfig video_config_;
   Type type_;
+  Liveness liveness_;
   base::TimeDelta duration_;
   bool end_of_stream_;
   base::TimeDelta last_packet_timestamp_;
@@ -173,7 +177,6 @@ class MEDIA_EXPORT FFmpegDemuxer : public Demuxer {
   base::Time GetTimelineOffset() const override;
   DemuxerStream* GetStream(DemuxerStream::Type type) override;
   base::TimeDelta GetStartTime() const override;
-  Liveness GetLiveness() const override;
 
   // Calls |need_key_cb_| with the initialization data encountered in the file.
   void FireNeedKey(const std::string& init_data_type,
@@ -225,6 +228,8 @@ class MEDIA_EXPORT FFmpegDemuxer : public Demuxer {
   // the text renderer to bind each text stream to the cue rendering engine.
   void AddTextStreams();
 
+  void SetLiveness(DemuxerStream::Liveness liveness);
+
   DemuxerHost* host_;
 
   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
@@ -283,9 +288,6 @@ class MEDIA_EXPORT FFmpegDemuxer : public Demuxer {
   // time if the file doesn't have an association to Time.
   base::Time timeline_offset_;
 
-  // Liveness of the stream.
-  Liveness liveness_;
-
   // Whether text streams have been enabled for this demuxer.
   bool text_enabled_;