Revert r95841 due to failing media_unittests on linux_shared bot.

media/audio/audio_output_dispatcher.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.
 
 // AudioOutputDispatcher dispatches creation and deletion of audio
 // output streams. AudioOutputProxy objects use this class to allocate
 // and recycle actual audio output streams. When playback is started,
 // the proxy calls StreamStarted() to get an output stream that it
 // uses to play the sound. When playback is stopped, the proxy returns
 // the stream back to the dispatcher by calling StreamStopped().
@@ skipping 15 matching lines @@
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
 #include "base/timer.h"
 #include "media/audio/audio_manager.h"
 #include "media/audio/audio_parameters.h"
 
 class AudioOutputStream;
 class MessageLoop;
 
-class MEDIA_EXPORT AudioOutputDispatcher
+class AudioOutputDispatcher
     : public base::RefCountedThreadSafe<AudioOutputDispatcher> {
  public:
   // |close_delay_ms| specifies delay after the stream is paused until
   // the audio device is closed.
   AudioOutputDispatcher(AudioManager* audio_manager,
                         const AudioParameters& params,
                         int close_delay_ms);
   ~AudioOutputDispatcher();
 
   // Called by AudioOutputProxy when the stream is closed. Opens a new
@@ skipping 45 matching lines @@
   int64 pause_delay_milliseconds_;
   size_t paused_proxies_;
   std::vector<AudioOutputStream*> idle_streams_;
   std::list<AudioOutputStream*> pausing_streams_;
   base::DelayTimer<AudioOutputDispatcher> close_timer_;
 
   DISALLOW_COPY_AND_ASSIGN(AudioOutputDispatcher);
 };
 
 #endif  // MEDIA_AUDIO_AUDIO_OUTPUT_DISPATCHER_H_