Removed MediaStreamTrackInterface::set_state

webrtc/api/mediastreamtrack.h

 /*
  *  Copyright 2011 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #ifndef WEBRTC_API_MEDIASTREAMTRACK_H_
 #define WEBRTC_API_MEDIASTREAMTRACK_H_
 
 #include <string>
 
 #include "webrtc/api/mediastreaminterface.h"
 #include "webrtc/api/notifier.h"
 
 namespace webrtc {
 
 // MediaTrack implements the interface common to AudioTrackInterface and
 // VideoTrackInterface.
 template <typename T>
 class MediaStreamTrack : public Notifier<T> {
  public:
   typedef typename T::TrackState TypedTrackState;
 
-  virtual std::string id() const { return id_; }
-  virtual MediaStreamTrackInterface::TrackState state() const {
+  std::string id() const override { return id_; }
+  MediaStreamTrackInterface::TrackState state() const override {
     return state_;
   }
-  virtual bool enabled() const { return enabled_; }
-  virtual bool set_enabled(bool enable) {
+  bool enabled() const override { return enabled_; }
+  bool set_enabled(bool enable) override {
     bool fire_on_change = (enable != enabled_);
     enabled_ = enable;
     if (fire_on_change) {
       Notifier<T>::FireOnChanged();
     }
     return fire_on_change;
   }
-  virtual bool set_state(MediaStreamTrackInterface::TrackState new_state) {
+
+ protected:
+  explicit MediaStreamTrack(const std::string& id)
+      : enabled_(true), id_(id), state_(MediaStreamTrackInterface::kLive) {}
+
+  bool set_state(MediaStreamTrackInterface::TrackState new_state) {
     bool fire_on_change = (state_ != new_state);
     state_ = new_state;
     if (fire_on_change)
       Notifier<T>::FireOnChanged();
     return true;
   }
 
- protected:
-  explicit MediaStreamTrack(const std::string& id)
-      : enabled_(true), id_(id), state_(MediaStreamTrackInterface::kLive) {}
-
  private:
   bool enabled_;
   std::string id_;
   MediaStreamTrackInterface::TrackState state_;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_API_MEDIASTREAMTRACK_H_