Add MediaStreamSource frame rate calculation to the tracker.

content/renderer/media/webrtc/video_destination_handler.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_RENDERER_MEDIA_WEBRTC_VIDEO_DESTINATION_HANDLER_H_
 #define CONTENT_RENDERER_MEDIA_WEBRTC_VIDEO_DESTINATION_HANDLER_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 40 matching lines @@
   // MediaStreamVideoSource implementation.
   virtual void GetCurrentSupportedFormats(
       int max_requested_width,
       int max_requested_height,
       double max_requested_frame_rate,
       const VideoCaptureDeviceFormatsCB& callback) OVERRIDE;
   virtual void StartSourceImpl(
       const media::VideoCaptureFormat& format,
       const VideoCaptureDeliverFrameCB& frame_callback) OVERRIDE;
   virtual void StopSourceImpl() OVERRIDE;
+  virtual std::string TypeName() const  OVERRIDE;
 
  private:
   media::VideoFramePool frame_pool_;
 
   class FrameWriterDelegate;
   scoped_refptr<FrameWriterDelegate> delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(PpFrameWriter);
 };
 
@@ skipping 12 matching lines @@
                    const std::string& url,
                    FrameWriterInterface** frame_writer);
 
  private:
   DISALLOW_COPY_AND_ASSIGN(VideoDestinationHandler);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_VIDEO_DESTINATION_HANDLER_H_