Revert r95841 due to failing media_unittests on linux_shared bot.

media/audio/audio_manager.h

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2010 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"
 #include "media/audio/audio_device_name.h"
 #include "media/audio/audio_parameters.h"
 
 class AudioInputStream;
 class AudioOutputStream;
 class MessageLoop;
 
 // TODO(sergeyu): In this interface and some other places AudioParameters struct
 // is passed by value. It is better to change it to const reference.
 
 // Manages all audio resources. In particular it owns the AudioOutputStream
 // objects. Provides some convenience functions that avoid the need to provide
 // iterators over the existing streams.
-class MEDIA_EXPORT AudioManager {
+class AudioManager {
  public:
   // Returns true if the OS reports existence of audio devices. This does not
   // guarantee that the existing devices support all formats and sample rates.
   virtual bool HasAudioOutputDevices() = 0;
 
   // Returns true if the OS reports existence of audio recording devices. This
   // does not guarantee that the existing devices support all formats and
   // sample rates.
   virtual bool HasAudioInputDevices() = 0;
 
@@ skipping 84 matching lines @@
  private:
   static void Destroy(void*);
 
   // Called by GetAudioManager() to create platform-specific audio manager.
   static AudioManager* CreateAudioManager();
 };
 
 DISABLE_RUNNABLE_METHOD_REFCOUNT(AudioManager);
 
 #endif  // MEDIA_AUDIO_AUDIO_MANAGER_H_