Adding speech_expand_rate to NetEQ Network Statistics.

There have been requests for separating rate of expanded speech samples from noise samples.

BUG=
R=henrik.lundin@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/37309004

Cr-Commit-Position: refs/heads/master@{#8404}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8404 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/webrtc/modules/audio_coding/neteq/interface/neteq.h b/webrtc/modules/audio_coding/neteq/interface/neteq.h
index 4847213..5d1bbfc 100644
--- a/webrtc/modules/audio_coding/neteq/interface/neteq.h
+++ b/webrtc/modules/audio_coding/neteq/interface/neteq.h
@@ -33,7 +33,9 @@
   uint16_t packet_loss_rate;  // Loss rate (network + late) in Q14.
   uint16_t packet_discard_rate;  // Late loss rate in Q14.
   uint16_t expand_rate;  // Fraction (of original stream) of synthesized
-                         // speech inserted through expansion (in Q14).
+                         // audio inserted through expansion (in Q14).
+  uint16_t speech_expand_rate;  // Fraction (of original stream) of synthesized
+                                // speech inserted through expansion (in Q14).
   uint16_t preemptive_rate;  // Fraction of data inserted through pre-emptive
                              // expansion (in Q14).
   uint16_t accelerate_rate;  // Fraction of data removed through acceleration