MediaStreamTrack: Add echo-cancellation and device-id to getSettings

content/renderer/media/media_stream_audio_track.cc

Index: content/renderer/media/media_stream_audio_track.cc
diff --git a/content/renderer/media/media_stream_audio_track.cc b/content/renderer/media/media_stream_audio_track.cc
index cb64f8af18db392cdee6789560a9c5e0659857c3..1a7ed61d16b908294b2278594c42c63962fa248a 100644
--- a/content/renderer/media/media_stream_audio_track.cc
+++ b/content/renderer/media/media_stream_audio_track.cc
@@ -143,8 +143,8 @@ void MediaStreamAudioTrack::OnData(const media::AudioBus& audio_bus,
 
 void MediaStreamAudioTrack::getSettings(
     blink::WebMediaStreamTrack::Settings& settings) {
-  // TODO(hta): Extract the real value.
-  settings.deviceId = blink::WebString("audio device ID");
+  // At the moment, all audio values are extracted from the source,
+  // not the track.
 }
 
 }  // namespace content