Reland 153623004: Remove the unified IO code on the browser

media/audio/mac/aggregate_device_manager.h

-// 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.
-
-#ifndef MEDIA_AUDIO_MAC_AGGREGATE_DEVICE_MANAGER_H_
-#define MEDIA_AUDIO_MAC_AGGREGATE_DEVICE_MANAGER_H_
-
-#include <CoreAudio/CoreAudio.h>
-
-#include "base/basictypes.h"
-#include "base/compiler_specific.h"
-#include "media/base/media_export.h"
-
-namespace media {
-
-class MEDIA_EXPORT AggregateDeviceManager {
- public:
-  AggregateDeviceManager();
-  ~AggregateDeviceManager();
-
-  // Lazily creates an aggregate device based on the default
-  // input and output devices.
-  // It will either return a valid device or kAudioDeviceUnknown
-  // if the default devices are not suitable for aggregate devices.
-  AudioDeviceID GetDefaultAggregateDevice();
-
- private:
-  // The caller is responsible for releasing the CFStringRef.
-  static CFStringRef GetDeviceUID(AudioDeviceID id);
-
-  static void GetDeviceName(AudioDeviceID id, char* name, UInt32 size);
-  static UInt32 GetClockDomain(AudioDeviceID device_id);
-  static OSStatus GetPluginID(AudioObjectID* id);
-
-  CFMutableDictionaryRef CreateAggregateDeviceDictionary(
-      AudioDeviceID input_id,
-      AudioDeviceID output_id);
-
-  CFMutableArrayRef CreateSubDeviceArray(CFStringRef input_device_UID,
-                                         CFStringRef output_device_UID);
-
-  OSStatus CreateAggregateDevice(AudioDeviceID input_id,
-                                 AudioDeviceID output_id,
-                                 AudioDeviceID* aggregate_device);
-  void DestroyAggregateDevice();
-
-  AudioObjectID plugin_id_;
-  AudioDeviceID input_device_;
-  AudioDeviceID output_device_;
-
-  AudioDeviceID aggregate_device_;
-
-  DISALLOW_COPY_AND_ASSIGN(AggregateDeviceManager);
-};
-
-}  // namespace media
-
-#endif  // MEDIA_AUDIO_MAC_AGGREGATE_DEVICE_MANAGER_H_