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@3289 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/webrtc/modules/audio_coding/neteq/recout.c b/webrtc/modules/audio_coding/neteq/recout.c
index 1f47945..8eb49e3 100644
--- a/webrtc/modules/audio_coding/neteq/recout.c
+++ b/webrtc/modules/audio_coding/neteq/recout.c
@@ -1090,6 +1090,8 @@
                 len = inst->timestampsPerCall;
                 /* ZeroStuffing... */
                 WebRtcSpl_MemSetW16(pw16_NetEqAlgorithm_buffer, 0, len);
+                /* By not advancing the timestamp, NetEq inserts samples. */
+                inst->statInst.addedSamples += len;
             }
             inst->ExpandInst.w16_consecExp = 0;
             break;