Add new decoding statistics for muted output

webrtc/api/statstypes.h

 /*
  *  Copyright 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 130 matching lines @@
     kStatsValueNameChannelId,
     kStatsValueNameCodecName,
     kStatsValueNameComponent,
     kStatsValueNameContentName,
     kStatsValueNameCpuLimitedResolution,
     kStatsValueNameCurrentDelayMs,
     kStatsValueNameDecodeMs,
     kStatsValueNameDecodingCNG,
     kStatsValueNameDecodingCTN,
     kStatsValueNameDecodingCTSG,
+    kStatsValueNameDecodingMutedOutput,
     kStatsValueNameDecodingNormal,
     kStatsValueNameDecodingPLC,
     kStatsValueNameDecodingPLCCNG,
     kStatsValueNameDer,
     kStatsValueNameDtlsCipher,
     kStatsValueNameEchoCancellationQualityMin,
     kStatsValueNameEchoDelayMedian,
     kStatsValueNameEchoDelayStdDev,
     kStatsValueNameEchoReturnLoss,
     kStatsValueNameEchoReturnLossEnhancement,
@@ skipping 238 matching lines @@
   StatsReport* Find(const StatsReport::Id& id);
 
  private:
   Container list_;
   rtc::ThreadChecker thread_checker_;
 };
 
 }  // namespace webrtc
 
 #endif  // WEBRTC_API_STATSTYPES_H_