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/modules/rtp_rtcp/mocks/mock_rtp_rtcp.h b/modules/rtp_rtcp/mocks/mock_rtp_rtcp.h
index 472683e..93230da 100644
--- a/modules/rtp_rtcp/mocks/mock_rtp_rtcp.h
+++ b/modules/rtp_rtcp/mocks/mock_rtp_rtcp.h
@@ -240,7 +240,10 @@
         int32_t());
   MOCK_METHOD0(Process,
         int32_t());
-
+  MOCK_METHOD1(RegisterSendFrameCountObserver,
+      void(FrameCountObserver*));
+  MOCK_CONST_METHOD0(GetSendFrameCountObserver,
+      FrameCountObserver*(void));
   // Members.
   unsigned int remote_ssrc_;
 };