407       const std::string& stream_label) {  in CreateMediaStream()  argument
409                                     MediaStream::Create(stream_label));  in CreateMediaStream()
1514     if ((info.stream_label == kDefaultStreamLabel && default_track_needed) ||  in UpdateRemoteStreamsList()
1518       OnRemoteTrackRemoved(info.stream_label, info.track_id, media_type);  in UpdateRemoteStreamsList()
1527     const std::string& stream_label = params.sync_label;  in UpdateRemoteStreamsList()  local
1532         remote_streams_->find(stream_label);  in UpdateRemoteStreamsList()
1535       stream = remote_stream_factory_->CreateMediaStream(stream_label);  in UpdateRemoteStreamsList()
1541         FindTrackInfo(*current_tracks, stream_label, track_id);  in UpdateRemoteStreamsList()
1543       current_tracks->push_back(TrackInfo(stream_label, track_id, ssrc));  in UpdateRemoteStreamsList()
1544       OnRemoteTrackSeen(stream_label, track_id, ssrc, media_type);  in UpdateRemoteStreamsList()
1572 void PeerConnection::OnRemoteTrackSeen(const std::string& stream_label,  in OnRemoteTrackSeen()  argument
1576   MediaStreamInterface* stream = remote_streams_->find(stream_label);  in OnRemoteTrackSeen()
1591 void PeerConnection::OnRemoteTrackRemoved(const std::string& stream_label,  in OnRemoteTrackRemoved()  argument
1594   MediaStreamInterface* stream = remote_streams_->find(stream_label);  in OnRemoteTrackRemoved()
1637     MediaStreamInterface* stream = remote_streams_->find(info.stream_label);  in EndRemoteTracks()
1670         params->sync_label != info.stream_label) {  in UpdateLocalTracks()
1671       OnLocalTrackRemoved(info.stream_label, info.track_id, info.ssrc,  in UpdateLocalTracks()
1683     const std::string& stream_label = params.sync_label;  in UpdateLocalTracks()  local
1687         FindTrackInfo(*current_tracks, stream_label, track_id);  in UpdateLocalTracks()
1689       current_tracks->push_back(TrackInfo(stream_label, track_id, ssrc));  in UpdateLocalTracks()
1690       OnLocalTrackSeen(stream_label, track_id, params.first_ssrc(), media_type);  in UpdateLocalTracks()
1695 void PeerConnection::OnLocalTrackSeen(const std::string& stream_label,  in OnLocalTrackSeen()  argument
1712   sender->set_stream_id(stream_label);  in OnLocalTrackSeen()
1716 void PeerConnection::OnLocalTrackRemoved(const std::string& stream_label,  in OnLocalTrackRemoved()  argument
2004     const std::string& stream_label,  in FindTrackInfo()  argument
2007     if (track_info.stream_label == stream_label &&  in FindTrackInfo()