Remove |remote| and |readonly| members of MediaStreamTrack.

content/renderer/media/media_stream_audio_source.h

 // Copyright 2014 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_SOURCE_H_
 #define CONTENT_RENDERER_MEDIA_MEDIA_STREAM_AUDIO_SOURCE_H_
 
 #include <memory>
 #include <string>
 
@@ skipping 125 matching lines @@
   // MediaStreamSource override.
   void DoStopSource() final;
 
   // Removes |track| from the list of instances that get a copy of the source
   // audio data. The "stop callback" that was provided to the track calls
   // this.
   void StopAudioDeliveryTo(MediaStreamAudioTrack* track);
 
   // True if the source of audio is a local device. False if the source is
   // remote (e.g., streamed-in from a server).
+  // TODO(crbug.com/598704): This variable is not likely to be used anymore.
+  // The remote option was erased by crbug.com/598704.
   const bool is_local_source_;
 
   // Set to true once this source has been permanently stopped.
   bool is_stopped_;
 
   // Manages tracks connected to this source and the audio format and data flow.
   MediaStreamAudioDeliverer<MediaStreamAudioTrack> deliverer_;
 
   // The task runner for main thread. Also used to check that all methods that
   // could cause object graph or data flow changes are being called on the main
   // thread.
   const scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
 
   // Provides weak pointers so that MediaStreamAudioTracks won't call
   // StopAudioDeliveryTo() if this instance dies first.
   base::WeakPtrFactory<MediaStreamAudioSource> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaStreamAudioSource);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_MEDIA_STREAM_AUDIO_SOURCE_H_