Add number of inserted samples to NetEq statistics.

BUG=

Review URL: https://webrtc-codereview.appspot.com/964030

git-svn-id: http://webrtc.googlecode.com/svn/trunk/webrtc@3289 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/common_types.h b/common_types.h
index b21fc1b..492cb37 100644
--- a/common_types.h
+++ b/common_types.h
@@ -314,6 +314,8 @@
     int minWaitingTimeMs;
     // max packet waiting time in the jitter buffer (ms)
     int maxWaitingTimeMs;
+    // added samples in off mode due to packet loss
+    int addedSamples;
 };
 
 typedef struct