Add a placeholder stat for logging the estimated residual echo likelihood.

webrtc/media/engine/webrtcvoiceengine.cc

 /*
  *  Copyright (c) 2004 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 2549 matching lines @@
     sinfo.codec_name = stats.codec_name;
     sinfo.ext_seqnum = stats.ext_seqnum;
     sinfo.jitter_ms = stats.jitter_ms;
     sinfo.rtt_ms = stats.rtt_ms;
     sinfo.audio_level = stats.audio_level;
     sinfo.aec_quality_min = stats.aec_quality_min;
     sinfo.echo_delay_median_ms = stats.echo_delay_median_ms;
     sinfo.echo_delay_std_ms = stats.echo_delay_std_ms;
     sinfo.echo_return_loss = stats.echo_return_loss;
     sinfo.echo_return_loss_enhancement = stats.echo_return_loss_enhancement;
+    sinfo.residual_echo_likelihood = stats.residual_echo_likelihood;
     sinfo.typing_noise_detected = (send_ ? stats.typing_noise_detected : false);
     info->senders.push_back(sinfo);
   }
 
   // Get SSRC and stats for each receiver.
   RTC_DCHECK(info->receivers.size() == 0);
   for (const auto& stream : recv_streams_) {
     webrtc::AudioReceiveStream::Stats stats = stream.second->GetStats();
     VoiceReceiverInfo rinfo;
     rinfo.add_ssrc(stats.remote_ssrc);
@@ skipping 70 matching lines @@
   RTC_DCHECK(worker_thread_checker_.CalledOnValidThread());
   const auto it = send_streams_.find(ssrc);
   if (it != send_streams_.end()) {
     return it->second->channel();
   }
   return -1;
 }
 }  // namespace cricket
 
 #endif  // HAVE_WEBRTC_VOICE