Making AudioManagerBase::ShutdownOnAudioThread() platform-agnostic

media/audio/audio_manager.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/audio_manager.h"
 
 #include <stdint.h>
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/power_monitor/power_monitor.h"
 #include "base/single_thread_task_runner.h"
 #include "base/strings/stringprintf.h"
 #include "build/build_config.h"
 #include "media/audio/fake_audio_log_factory.h"
 #include "media/base/media_switches.h"
 
-#if defined(OS_MACOSX)
-#include "media/audio/mac/audio_manager_mac.h"
-#endif
-
 #if defined(OS_WIN)
 #include "base/win/scoped_com_initializer.h"
-#include "media/audio/win/core_audio_util_win.h"
 #endif
 
 namespace media {
 namespace {
 
 // The singleton instance of AudioManager. This is set when Create() is called.
 AudioManager* g_last_created = nullptr;
 
 // Maximum number of failed pings to the audio thread allowed. A UMA will be
 // recorded once this count is reached; if enabled, a non-crash dump will be
@@ skipping 309 matching lines @@
     audio_thread_->GetTaskRunner()->PostTask(
         FROM_HERE, base::Bind(&AudioManager::ShutdownOnAudioThread,
                               base::Unretained(this)));
   }
   audio_thread_->Stop();
   shutdown_ = true;
   return true;
 }
 
 }  // namespace media