Expose a way for unit tests to terminate the AudioManager singleton to avoid conflicts between te...

media/audio/audio_manager.h

 // Copyright (c) 2011 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_AUDIO_MANAGER_H_
 #define MEDIA_AUDIO_AUDIO_MANAGER_H_
 
 #include "base/basictypes.h"
 #include "base/string16.h"
 #include "base/task.h"
@@ skipping 102 matching lines @@
  protected:
   virtual ~AudioManager() {}
 
   // Called from GetAudioManager() to initialiaze the instance.
   virtual void Init() = 0;
 
   // Called by Destroy() to cleanup the instance before destruction.
   virtual void Cleanup() = 0;
 
  private:
+  // Allow unit tests to delete and recreate the singleton.
+  friend class AutoAudioManagerCleanup;
   static void Destroy(void*);
+  static bool SingletonExists();
+  static void Resurrect();
 
   // Called by GetAudioManager() to create platform-specific audio manager.
   static AudioManager* CreateAudioManager();
 };
 
 DISABLE_RUNNABLE_METHOD_REFCOUNT(AudioManager);
 
 #endif  // MEDIA_AUDIO_AUDIO_MANAGER_H_