Add a virtual beamforming audio device on ChromeOS.

media/audio/openbsd/audio_manager_openbsd.h

-// 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.
-
-#ifndef MEDIA_AUDIO_OPENBSD_AUDIO_MANAGER_OPENBSD_H_
-#define MEDIA_AUDIO_OPENBSD_AUDIO_MANAGER_OPENBSD_H_
-
-#include <set>
-
-#include "base/compiler_specific.h"
-#include "media/audio/audio_manager_base.h"
-
-namespace media {
-
-class MEDIA_EXPORT AudioManagerOpenBSD : public AudioManagerBase {
- public:
-  AudioManagerOpenBSD(AudioLogFactory* audio_log_factory);
-
-  // Implementation of AudioManager.
-  bool HasAudioOutputDevices() override;
-  bool HasAudioInputDevices() override;
-  AudioParameters GetInputStreamParameters(
-      const std::string& device_id) override;
-
-  // Implementation of AudioManagerBase.
-  AudioOutputStream* MakeLinearOutputStream(
-      const AudioParameters& params) override;
-  AudioOutputStream* MakeLowLatencyOutputStream(
-      const AudioParameters& params,
-      const std::string& device_id) override;
-  AudioInputStream* MakeLinearInputStream(
-      const AudioParameters& params, const std::string& device_id) override;
-  AudioInputStream* MakeLowLatencyInputStream(
-      const AudioParameters& params, const std::string& device_id) override;
-
- protected:
-  ~AudioManagerOpenBSD() override;
-
-  AudioParameters GetPreferredOutputStreamParameters(
-      const std::string& output_device_id,
-      const AudioParameters& input_params) override;
-
- private:
-  // Called by MakeLinearOutputStream and MakeLowLatencyOutputStream.
-  AudioOutputStream* MakeOutputStream(const AudioParameters& params);
-
-  // Flag to indicate whether the pulse library has been initialized or not.
-  bool pulse_library_is_initialized_;
-
-  DISALLOW_COPY_AND_ASSIGN(AudioManagerOpenBSD);
-};
-
-}  // namespace media
-
-#endif  // MEDIA_AUDIO_OPENBSD_AUDIO_MANAGER_OPENBSD_H_