Move Liveness from DemuxerStreamProvider to DemuxerStream.

media/formats/webm/webm_stream_parser.cc

Index: media/formats/webm/webm_stream_parser.cc
diff --git a/media/formats/webm/webm_stream_parser.cc b/media/formats/webm/webm_stream_parser.cc
index 384c9cfdf4831c0761650b872d9b94b6d23e6428..ceda1a20736f697b4a003e86b1b8f5598f449e57 100644
--- a/media/formats/webm/webm_stream_parser.cc
+++ b/media/formats/webm/webm_stream_parser.cc
@@ -207,11 +207,11 @@ int WebMStreamParser::ParseInfoAndTracks(const uint8* data, int size) {
 
   if (unknown_segment_size_ && (info_parser.duration() <= 0) &&
       !info_parser.date_utc().is_null()) {
-    params.liveness = Demuxer::LIVENESS_LIVE;
+    params.liveness = DemuxerStream::LIVENESS_LIVE;
   } else if (info_parser.duration() >= 0) {
-    params.liveness = Demuxer::LIVENESS_RECORDED;
+    params.liveness = DemuxerStream::LIVENESS_RECORDED;
   } else {
-    params.liveness = Demuxer::LIVENESS_UNKNOWN;
+    params.liveness = DemuxerStream::LIVENESS_UNKNOWN;
   }
 
   const AudioDecoderConfig& audio_config = tracks_parser.audio_decoder_config();