Add support for echoCancellation and deviceId to MediaStreamTrack.getSettings

content/renderer/media/media_stream_audio_track.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_RENDERER_MEDIA_MEDIA_STREAM_AUDIO_TRACK_H_
 #define CONTENT_RENDERER_MEDIA_MEDIA_STREAM_AUDIO_TRACK_H_
 
 #include <memory>
 
 #include "base/atomicops.h"
@@ skipping 74 matching lines @@
   // format change. In turn, all MediaStreamAudioSinks will be notified before
   // the next chunk of audio is delivered to them.
   void OnSetFormat(const media::AudioParameters& params);
 
   // Called by the MediaStreamAudioDeliverer to deliver audio data to this
   // track, which in turn delivers the audio to one or more
   // MediaStreamAudioSinks. While this track is disabled, silent audio will be
   // delivered to the sinks instead of the content of |audio_bus|.
   void OnData(const media::AudioBus& audio_bus, base::TimeTicks reference_time);
 
-  void GetSettings(blink::WebMediaStreamTrack::Settings& settings) override;
-
  private:
   // In debug builds, check that all methods that could cause object graph
   // or data flow changes are being called on the main thread.
   base::ThreadChecker thread_checker_;
 
   // Callback provided to Start() which is run when the audio flow must halt.
   base::Closure stop_callback_;
 
   // Manages sinks connected to this track and the audio format and data flow.
   MediaStreamAudioDeliverer<MediaStreamAudioSink> deliverer_;
 
   // While false (0), silent audio is delivered to the sinks.
   base::subtle::Atomic32 is_enabled_;
 
   // Buffer used to deliver silent audio data while this track is disabled.
   std::unique_ptr<media::AudioBus> silent_bus_;
 
   // Provides weak pointers that are valid until Stop() is called.
   base::WeakPtrFactory<MediaStreamAudioTrack> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaStreamAudioTrack);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_MEDIA_STREAM_AUDIO_TRACK_H_