Add callbacks for send channel rtcp statistics

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

Review URL: https://webrtc-codereview.appspot.com/4429004

git-svn-id: http://webrtc.googlecode.com/svn/trunk/webrtc@5220 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/common_types.h b/common_types.h
index a45cf06..28099df 100644
--- a/common_types.h
+++ b/common_types.h
@@ -240,14 +240,12 @@
     : fraction_lost(0),
       cumulative_lost(0),
       extended_max_sequence_number(0),
-      jitter(0),
-      max_jitter(0) {}
+      jitter(0) {}
 
   uint8_t fraction_lost;
   uint32_t cumulative_lost;
   uint32_t extended_max_sequence_number;
   uint32_t jitter;
-  uint32_t max_jitter;
 };
 
 // Callback, called whenever a new rtcp report block is transmitted.