Add MediaStreamSource frame rate calculation to the tracker.

content/browser/renderer_host/media/peer_connection_tracker_host.h

 // Copyright (c) 2013 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_BROWSER_RENDERER_HOST_MEDIA_PEER_CONNECTION_TRACKER_HOST_H_
 #define CONTENT_BROWSER_RENDERER_HOST_MEDIA_PEER_CONNECTION_TRACKER_HOST_H_
 
 #include "base/power_monitor/power_observer.h"
 #include "content/public/browser/browser_message_filter.h"
 
@@ skipping 32 matching lines @@
   void OnAddPeerConnection(const PeerConnectionInfo& info);
   void OnRemovePeerConnection(int lid);
   void OnUpdatePeerConnection(
       int lid, const std::string& type, const std::string& value);
   void OnAddStats(int lid, const base::ListValue& value);
   void OnGetUserMedia(const std::string& origin,
                       bool audio,
                       bool video,
                       const std::string& audio_constraints,
                       const std::string& video_constraints);
+  void OnAddVideoStats(const std::string& video_id,
+                       float input_frame_rate,
+                       int number_of_dropped_frames);
+
   void SendOnSuspendOnUIThread();
 
   int render_process_id_;
 
   DISALLOW_COPY_AND_ASSIGN(PeerConnectionTrackerHost);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_MEDIA_PEER_CONNECTION_TRACKER_HOST_H_