Revert r95841 due to failing media_unittests on linux_shared bot.

media/audio/audio_buffers_state.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_BUFFERS_STATE_H_
 #define MEDIA_AUDIO_AUDIO_BUFFERS_STATE_H_
 
 #include "base/time.h"
-#include "media/base/media_export.h"
 
 // AudioBuffersState struct stores current state of audio buffers along with
 // the timestamp of the moment this state corresponds to. It is used for audio
 // synchronization.
-struct MEDIA_EXPORT AudioBuffersState {
+struct AudioBuffersState {
   AudioBuffersState();
   AudioBuffersState(int pending_bytes, int hardware_delay_bytes);
 
   int total_bytes();
 
   // Number of bytes we currently have in our software buffer.
   int pending_bytes;
 
   // Number of bytes that have been written to the device, but haven't
   // been played yet.
   int hardware_delay_bytes;
 
   // Timestamp of the moment when the buffers state was captured. It is used
   // to account for the time it takes to deliver AudioBuffersState from
   // the browser process to the renderer.
   base::Time timestamp;
 };
 
 
 #endif  // MEDIA_AUDIO_AUDIO_BUFFERS_STATE_H_