Making AudioManagerBase::ShutdownOnAudioThread() platform-agnostic

media/audio/mac/audio_manager_mac.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/mac/audio_manager_mac.h"
 
 #include <algorithm>
 #include <limits>
 #include <vector>
 
@@ skipping 509 matching lines @@
   // Task must be posted last to avoid races from handing out "this" to the
   // audio thread.  Always PostTask even if we're on the right thread since
   // AudioManager creation is on the startup path and this may be slow.
   GetTaskRunner()->PostTask(
       FROM_HERE, base::Bind(&AudioManagerMac::InitializeOnAudioThread,
                             base::Unretained(this)));
 }
 
 AudioManagerMac::~AudioManagerMac() = default;
 
-void AudioManagerMac::ShutdownOnAudioThread() {
+void AudioManagerMac::ShutdownOnAudioThread(bool immediately) {
   // We are now in shutdown mode. This flag disables MaybeChangeBufferSize()
   // and IncreaseIOBufferSizeIfPossible() which both touches native Core Audio
   // APIs and they can fail and disrupt tests during shutdown.
   in_shutdown_ = true;
-  AudioManagerBase::ShutdownOnAudioThread();
+  AudioManagerBase::ShutdownOnAudioThread(immediately);
 }
 
 bool AudioManagerMac::HasAudioOutputDevices() {
   return HasAudioHardware(kAudioHardwarePropertyDefaultOutputDevice);
 }
 
 bool AudioManagerMac::HasAudioInputDevices() {
   return HasAudioHardware(kAudioHardwarePropertyDefaultInputDevice);
 }
 
@@ skipping 637 matching lines @@
 }
 
 std::unique_ptr<AudioManager> CreateAudioManager(
     std::unique_ptr<AudioThread> audio_thread,
     AudioLogFactory* audio_log_factory) {
   return base::MakeUnique<AudioManagerMac>(std::move(audio_thread),
                                            audio_log_factory);
 }
 
 }  // namespace media