Mark MediaStreamTrackMetrics DISALLOW_COPY_AND_ASSIGN

content/renderer/media/webrtc/media_stream_track_metrics.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_WEBRTC_MEDIA_STREAM_TRACK_METRICS_H_
 #define CONTENT_RENDERER_MEDIA_WEBRTC_MEDIA_STREAM_TRACK_METRICS_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 79 matching lines @@
  private:
   // Make a unique ID for the given track, that is valid while the
   // track object and the PeerConnection it is attached to both exist.
   uint64_t MakeUniqueId(const std::string& track, StreamType stream_type);
 
   typedef std::vector<std::unique_ptr<MediaStreamTrackMetricsObserver>>
       ObserverVector;
   ObserverVector observers_;
 
   webrtc::PeerConnectionInterface::IceConnectionState ice_state_;
+
+  DISALLOW_COPY_AND_ASSIGN(MediaStreamTrackMetrics);
 };
 
 }  // namespace
 
 #endif  // CONTENT_RENDERER_MEDIA_WEBRTC_MEDIA_STREAM_TRACK_METRICS_H_