Add a virtual beamforming audio device on ChromeOS.

media/audio/win/core_audio_util_win.cc

 // Copyright (c) 2012 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 "media/audio/win/core_audio_util_win.h"
 
 #include <devicetopology.h>
 #include <functiondiscoverykeys_devpkey.h>
 
 #include "base/command_line.h"
@@ skipping 768 matching lines @@
                   params->sample_rate(), params->bits_per_sample(),
                   params->frames_per_buffer());
   }
 
   ScopedComPtr<IMMDevice> communications_device(
       CreateDefaultDevice(eCapture, eCommunications));
   if (communications_device &&
       GetDeviceID(communications_device.get()) == GetDeviceID(device.get())) {
     // Raise the 'DUCKING' flag for default communication devices.
     *params =
-        AudioParameters(params->format(), params->channel_layout(),
-                        params->channels(), params->sample_rate(),
+        AudioParameters(params->format(), params->channels(),
+                        params->channel_layout(), params->sample_rate(),
                         params->bits_per_sample(), params->frames_per_buffer(),
-                        params->effects() | AudioParameters::DUCKING);
+                        "", params->effects() | AudioParameters::DUCKING);
   }
 
   return hr;
 }
 
 ChannelConfig CoreAudioUtil::GetChannelConfig(const std::string& device_id,
                                               EDataFlow data_flow) {
   ScopedComPtr<IAudioClient> client(
       CreateClient(device_id, data_flow, eConsole));
 
@@ skipping 114 matching lines @@
     return false;
 
   // Using the AUDCLNT_BUFFERFLAGS_SILENT flag eliminates the need to
   // explicitly write silence data to the rendering buffer.
   DVLOG(2) << "filling up " << num_frames_to_fill << " frames with silence";
   return SUCCEEDED(render_client->ReleaseBuffer(num_frames_to_fill,
                                                 AUDCLNT_BUFFERFLAGS_SILENT));
 }
 
 }  // namespace media