Add missing macros includes in media/.

media/audio/mock_audio_manager.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_MOCK_AUDIO_MANAGER_H_
 #define MEDIA_AUDIO_MOCK_AUDIO_MANAGER_H_
 
+#include "base/macros.h"
 #include "media/audio/audio_manager.h"
 
 namespace media {
 
 // This class is a simple mock around AudioManager, used exclusively for tests,
 // which has the following purposes:
 // 1) Avoids to use the actual (system and platform dependent) AudioManager.
 //    Some bots does not have input devices, thus using the actual AudioManager
 //    would causing failures on classes which expect that.
 // 2) Allows the mock audio events to be dispatched on an arbitrary thread,
@@ skipping 53 matching lines @@
 
  private:
   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
 
   DISALLOW_COPY_AND_ASSIGN(MockAudioManager);
 };
 
 }  // namespace media.
 
 #endif  // MEDIA_AUDIO_MOCK_AUDIO_MANAGER_H_