Making AudioManagerBase::ShutdownOnAudioThread() platform-agnostic

media/audio/mac/audio_manager_mac.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_MAC_AUDIO_MANAGER_MAC_H_
 #define MEDIA_AUDIO_MAC_AUDIO_MANAGER_MAC_H_
 
 #include <AudioUnit/AudioUnit.h>
 #include <CoreAudio/AudioHardware.h>
 #include <stddef.h>
@@ skipping 105 matching lines @@
   size_t output_streams() const { return output_streams_.size(); }
   size_t low_latency_input_streams() const {
     return low_latency_input_streams_.size();
   }
   size_t basic_input_streams() const { return basic_input_streams_.size(); }
 
  protected:
   AudioParameters GetPreferredOutputStreamParameters(
       const std::string& output_device_id,
       const AudioParameters& input_params) override;
-  void ShutdownOnAudioThread() override;
+  void ShutdownOnAudioThread(bool immediately) override;
 
  private:
   void InitializeOnAudioThread();
 
   int ChooseBufferSize(bool is_input, int sample_rate);
 
   // Notify streams of a device change if the default output device or its
   // sample rate has changed, otherwise does nothing.
   void HandleDeviceChanges();
 
@@ skipping 44 matching lines @@
   // Set to true in the destructor. Ensures that methods that touches native
   // Core Audio APIs are not executed during shutdown.
   bool in_shutdown_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioManagerMac);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_AUDIO_MAC_AUDIO_MANAGER_MAC_H_