UMA histogram WebRTC.AecDelayBasedQuality updated

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 "base/command_line.h"
 #include "base/metrics/field_trial.h"
 #include "base/metrics/histogram.h"
 #include "base/trace_event/trace_event.h"
@@ skipping 401 matching lines @@
   // There is no need to hold a lock here since the caller guarantees that
   // there is no more OnPlayoutData() callback on the render thread.
   render_thread_checker_.DetachFromThread();
   render_fifo_.reset();
 }
 
 void MediaStreamAudioProcessor::GetStats(AudioProcessorStats* stats) {
   stats->typing_noise_detected =
       (base::subtle::Acquire_Load(&typing_detected_) != false);
   GetAecStats(audio_processing_.get(), stats);
-  if (echo_information_)
-    echo_information_.get()->UpdateAecDelayStats(stats->echo_delay_median_ms);
 }
 
 void MediaStreamAudioProcessor::InitializeAudioProcessingModule(
     const blink::WebMediaConstraints& constraints, int effects) {
   DCHECK(main_thread_checker_.CalledOnValidThread());
   DCHECK(!audio_processing_);
 
   MediaAudioConstraints audio_constraints(constraints, effects);
 
   // Audio mirroring can be enabled even though audio processing is otherwise
@@ skipping 238 matching lines @@
   DCHECK_EQ(err, 0) << "ProcessStream() error: " << err;
 
   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());
+  }
+
   // 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