Add UMA stats for AEC filter divergence metric.

content/renderer/media/media_stream_audio_processor.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/media/media_stream_audio_processor.h"
 
 #include <stddef.h>
 #include <stdint.h>
 #include <utility>
 
@@ skipping 391 matching lines @@
   if (!audio_processing_.get())
     return;
 
   audio_processing_.get()->UpdateHistogramsOnCallEnd();
   StopEchoCancellationDump(audio_processing_.get());
 
   if (playout_data_source_) {
     playout_data_source_->RemovePlayoutSink(this);
     playout_data_source_ = NULL;
   }
+
+  if (echo_information_)
+    echo_information_->ReportAndResetAecDivergentFilterStats();
 }
 
 const media::AudioParameters& MediaStreamAudioProcessor::InputFormat() const {
   return input_format_;
 }
 
 const media::AudioParameters& MediaStreamAudioProcessor::OutputFormat() const {
   return output_format_;
 }
 
@@ skipping 328 matching lines @@
 
   if (typing_detector_) {
     webrtc::VoiceDetection* vad = ap->voice_detection();
     DCHECK(vad->is_enabled());
     bool detected = typing_detector_->Process(key_pressed,
                                               vad->stream_has_voice());
     base::subtle::Release_Store(&typing_detected_, detected);
   }
 
   if (echo_information_) {
-    echo_information_.get()->UpdateAecDelayStats(ap->echo_cancellation());
+    echo_information_->UpdateAecDelayStats(ap->echo_cancellation());
+    echo_information_->UpdateAecDivergentFilterStats(ap->echo_cancellation());
   }
 
   // Return 0 if the volume hasn't been changed, and otherwise the new volume.
   return (agc->stream_analog_level() == volume) ?
       0 : agc->stream_analog_level();
 }
 
 }  // namespace content