Delete deprecated audio processing stats getters

Related deprecation PSA:
https://groups.google.com/d/msg/discuss-webrtc/NgqEPvkNuDE/7HtwnMmADgAJ

Bug: webrtc:9947
Change-Id: I392a9c27641a1b37170c27c9f42721bdae353615
Reviewed-on: https://chromium-review.googlesource.com/c/1309785Reviewed-by: Max Morin <maxmorin@chromium.org>
Commit-Queue: Sam Zackrisson <saza@chromium.org>
Cr-Commit-Position: refs/heads/master@{#604252}

content/renderer/media/stream/audio_service_audio_processor_proxy.cc

@@ -102,12 +102,6 @@ void AudioServiceAudioProcessorProxy::SetControls(
     aec_dump_message_filter_->AddDelegate(this);
 }
 
-void AudioServiceAudioProcessorProxy::GetStats(AudioProcessorStats* out) {
-  // This is the old GetStats interface from webrtc::AudioProcessorInterface.
-  // It should not be in use by Chrome any longer.
-  NOTREACHED();
-}
-
 webrtc::AudioProcessorInterface::AudioProcessorStatistics
 AudioServiceAudioProcessorProxy::GetStats(bool has_remote_tracks) {
   base::AutoLock lock(stats_lock_);

content/renderer/media/stream/audio_service_audio_processor_proxy.h

@@ -41,10 +41,6 @@ class CONTENT_EXPORT AudioServiceAudioProcessorProxy
   // this method.
   void Stop();
 
-  // webrtc::AudioProcessorInterface implementation.
-  // This method is called on the libjingle thread.
-  void GetStats(AudioProcessorStats* stats) override;
-
   // This method is called on the libjingle thread.
   AudioProcessorStatistics GetStats(bool has_remote_tracks) override;
 

content/renderer/media/stream/media_stream_audio_processor.cc

@@ -524,12 +524,6 @@ void MediaStreamAudioProcessor::OnRenderThreadChanged() {
   DCHECK(render_thread_checker_.CalledOnValidThread());
 }
 
-void MediaStreamAudioProcessor::GetStats(AudioProcessorStats* stats) {
-  // This is the old GetStats interface from webrtc::AudioProcessorInterface.
-  // It should not be in use by Chrome any longer.
-  NOTREACHED();
-}
-
 webrtc::AudioProcessorInterface::AudioProcessorStatistics
 MediaStreamAudioProcessor::GetStats(bool has_remote_tracks) {
   AudioProcessorStatistics stats;

content/renderer/media/stream/media_stream_audio_processor.h

@@ -134,10 +134,6 @@ class CONTENT_EXPORT MediaStreamAudioProcessor
   void OnPlayoutDataSourceChanged() override;
   void OnRenderThreadChanged() override;
 
-  // webrtc::AudioProcessorInterface implementation.
-  // This method is called on the libjingle thread.
-  void GetStats(AudioProcessorStats* stats) override;
-
   // This method is called on the libjingle thread.
   AudioProcessorStatistics GetStats(bool has_remote_tracks) override;
 

content/renderer/media/stream/media_stream_audio_processor_options.cc

@@ -217,22 +217,4 @@ void ConfigPreAmplifier(webrtc::AudioProcessing::Config* apm_config,
   }
 }
 
-void GetAudioProcessingStats(
-    AudioProcessing* audio_processing,
-    webrtc::AudioProcessorInterface::AudioProcessorStats* stats) {
-  // TODO(ivoc): Change the APM stats to use optional instead of default values.
-  auto apm_stats = audio_processing->GetStatistics();
-  stats->echo_return_loss = apm_stats.echo_return_loss.instant();
-  stats->echo_return_loss_enhancement =
-      apm_stats.echo_return_loss_enhancement.instant();
-  stats->aec_divergent_filter_fraction = apm_stats.divergent_filter_fraction;
-
-  stats->echo_delay_median_ms = apm_stats.delay_median;
-  stats->echo_delay_std_ms = apm_stats.delay_standard_deviation;
-
-  stats->residual_echo_likelihood = apm_stats.residual_echo_likelihood;
-  stats->residual_echo_likelihood_recent_max =
-      apm_stats.residual_echo_likelihood_recent_max;
-}
-
 }  // namespace content

content/renderer/media/stream/media_stream_audio_processor_options.h

@@ -131,10 +131,6 @@ void EnableAutomaticGainControl(AudioProcessing* audio_processing,
 void ConfigPreAmplifier(webrtc::AudioProcessing::Config* apm_config,
                         base::Optional<double> fixed_gain_factor);
 
-void GetAudioProcessingStats(
-    AudioProcessing* audio_processing,
-    webrtc::AudioProcessorInterface::AudioProcessorStats* stats);
-
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_STREAM_MEDIA_STREAM_AUDIO_PROCESSOR_OPTIONS_H_