Add a virtual beamforming audio device on ChromeOS.

components/audio_modem/audio_recorder_impl.cc

 // Copyright 2015 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 "components/audio_modem/audio_recorder_impl.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 84 matching lines @@
 
 void AudioRecorderImpl::InitializeOnAudioThread() {
   DCHECK(media::AudioManager::Get()->GetTaskRunner()->BelongsToCurrentThread());
 
   media::AudioParameters params;
   if (params_for_testing_) {
     params = *params_for_testing_;
   } else {
     params = media::AudioManager::Get()->GetInputStreamParameters(
         media::AudioManagerBase::kDefaultDeviceId);
-    params = media::AudioParameters(params.format(),
-                                    params.channel_layout(),
-                                    params.sample_rate(),
-                                    params.bits_per_sample(),
-                                    params.frames_per_buffer(),
-                                    media::AudioParameters::NO_EFFECTS);
+    params = media::AudioParameters(
+        params.format(), params.channel_layout(), params.sample_rate(),
+        params.bits_per_sample(), params.frames_per_buffer());
   }
 
   total_buffer_frames_ = kProcessIntervalMs * params.sample_rate() / 1000;
   buffer_ = media::AudioBus::Create(params.channels(), total_buffer_frames_);
   buffer_frame_index_ = 0;
 
   stream_ = input_stream_for_testing_
                 ? input_stream_for_testing_.get()
                 : media::AudioManager::Get()->MakeAudioInputStream(
                       params, media::AudioManagerBase::kDefaultDeviceId);
@@ skipping 91 matching lines @@
   media::AudioManager::Get()->GetTaskRunner()->PostTaskAndReply(
       FROM_HERE,
       base::Bind(
           base::IgnoreResult(&AudioRecorderImpl::FlushAudioLoopForTesting),
           base::Unretained(this)),
       rl.QuitClosure());
   rl.Run();
 }
 
 }  // namespace audio_modem