Add a 'remote' property to MediaSourceInterface. Also adding an implementation to the relevant sour…

talk/app/webrtc/remoteaudiotrack.h

 /*
  * libjingle
  * Copyright 2015 Google Inc.
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-#ifndef TALK_APP_WEBRTC_REMOTEAUDIOTRACK_H_
-#define TALK_APP_WEBRTC_REMOTEAUDIOTRACK_H_
-
-#include <string>
-
-#include "talk/app/webrtc/mediastreaminterface.h"
-#include "talk/app/webrtc/mediastreamtrack.h"
-#include "talk/app/webrtc/notifier.h"
-#include "webrtc/base/scoped_ptr.h"
-#include "webrtc/base/scoped_ref_ptr.h"
-
-namespace webrtc {
-
-class RemoteAudioSource;
-
-class RemoteAudioTrack : public MediaStreamTrack<AudioTrackInterface>,
-                         public ObserverInterface {
- protected:
-  // Protected ctor to force use of factory method.
-  RemoteAudioTrack(const std::string& label,
-                   const rtc::scoped_refptr<RemoteAudioSource>& source);
-  ~RemoteAudioTrack() override;
-
- public:
-  static rtc::scoped_refptr<RemoteAudioTrack> Create(
-      const std::string& id,
-      const rtc::scoped_refptr<RemoteAudioSource>& source);
-
- private:
-  // MediaStreamTrack implementation.
-  std::string kind() const override;
-
-  // AudioTrackInterface implementation.
-  AudioSourceInterface* GetSource() const override;
-
-  void AddSink(AudioTrackSinkInterface* sink) override;
-  void RemoveSink(AudioTrackSinkInterface* sink) override;
-  bool GetSignalLevel(int* level) override;
-
-  // ObserverInterface implementation.
-  void OnChanged() override;
-
- private:
-  const rtc::scoped_refptr<RemoteAudioSource> audio_source_;
-  RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(RemoteAudioTrack);
-};
-
-}  // namespace webrtc
-
-#endif  // TALK_APP_WEBRTC_REMOTEAUDIOTRACK_H_
+// TODO(tommi): Delete this file when removed from build files in Chromium.