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

talk/app/webrtc/localaudiosource.h

 /*
  * libjingle
  * Copyright 2012 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 30 matching lines @@
 
 class MediaConstraintsInterface;
 
 class LocalAudioSource : public Notifier<AudioSourceInterface> {
  public:
   // Creates an instance of LocalAudioSource.
   static rtc::scoped_refptr<LocalAudioSource> Create(
       const PeerConnectionFactoryInterface::Options& options,
       const MediaConstraintsInterface* constraints);
 
-  virtual SourceState state() const { return source_state_; }
+  SourceState state() const override { return source_state_; }
+  bool remote() const override { return false; }
+
   virtual const cricket::AudioOptions& options() const { return options_; }
 
  protected:
-  LocalAudioSource()
-      : source_state_(kInitializing) {
-  }
-
-  ~LocalAudioSource() {
-  }
+  LocalAudioSource() : source_state_(kInitializing) {}
+  ~LocalAudioSource() override {}
 
  private:
   void Initialize(const PeerConnectionFactoryInterface::Options& options,
                   const MediaConstraintsInterface* constraints);
 
   cricket::AudioOptions options_;
   SourceState source_state_;
 };
 
 }  // namespace webrtc
 
 #endif  // TALK_APP_WEBRTC_LOCALAUDIOSOURCE_H_