Reland "SelectSettings algorithm for audio constraints."

content/renderer/media/media_stream_audio_processor_options.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_options.h"
 
 #include <stddef.h>
 #include <utility>
 
 #include "base/files/file_path.h"
@@ skipping 257 matching lines @@
 std::string MediaAudioConstraints::GetGoogArrayGeometry() const {
   std::string the_value;
   if (GetConstraintValueAsString(
           constraints_, &blink::WebMediaTrackConstraintSet::goog_array_geometry,
           &the_value)) {
     return the_value;
   }
   return "";
 }
 
+AudioProcessingProperties::AudioProcessingProperties() = default;
+AudioProcessingProperties::AudioProcessingProperties(
+    const AudioProcessingProperties& other) = default;
+AudioProcessingProperties& AudioProcessingProperties::operator=(
+    const AudioProcessingProperties& other) = default;
+AudioProcessingProperties::AudioProcessingProperties(
+    AudioProcessingProperties&& other) = default;
+AudioProcessingProperties& AudioProcessingProperties::operator=(
+    AudioProcessingProperties&& other) = default;
+AudioProcessingProperties::~AudioProcessingProperties() = default;
+
 EchoInformation::EchoInformation()
     : delay_stats_time_ms_(0),
       echo_frames_received_(false),
       divergent_filter_stats_time_ms_(0),
       num_divergent_filter_fraction_(0),
       num_non_zero_divergent_filter_fraction_(0) {}
 
 EchoInformation::~EchoInformation() {
   DCHECK(thread_checker_.CalledOnValidThread());
   ReportAndResetAecDivergentFilterStats();
@@ skipping 191 matching lines @@
 
   // Give preference to the audio constraint over the device-supplied mic
   // positions. This is mainly for testing purposes.
   return WebrtcPointsFromMediaPoints(
       constraints_geometry.empty()
           ? input_params.mic_positions
           : media::ParsePointsFromString(constraints_geometry));
 }
 
 }  // namespace content