Add send frame rate statistics callback

BUG=2235
R=mflodman@webrtc.org, pbos@webrtc.org, stefan@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/4479005

git-svn-id: http://webrtc.googlecode.com/svn/trunk/webrtc@5213 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/video_engine/vie_channel.h b/video_engine/vie_channel.h
index c9536f1..a16a65d 100644
--- a/video_engine/vie_channel.h
+++ b/video_engine/vie_channel.h
@@ -326,6 +326,8 @@
   void RegisterPreDecodeImageCallback(
       EncodedImageCallback* pre_decode_callback);
 
+  void RegisterSendFrameCountObserver(FrameCountObserver* observer);
+
  protected:
   static bool ChannelDecodeThreadFunction(void* obj);
   bool ChannelDecodeProcess();