Remove unused AudioBuffersState member.

media/audio/linux/alsa_input.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_LINUX_ALSA_INPUT_H_
 #define MEDIA_AUDIO_LINUX_ALSA_INPUT_H_
 
 #include <alsa/asoundlib.h>
 
 #include <string>
 
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
+#include "base/time.h"
 #include "media/audio/audio_io.h"
 #include "media/audio/audio_parameters.h"
 
 class AlsaWrapper;
 class AudioManagerLinux;
 
 // Provides an input stream for audio capture based on the ALSA PCM interface.
 // This object is not thread safe and all methods should be invoked in the
 // thread that created the object.
 class AlsaPcmInputStream : public AudioInputStream {
@@ skipping 52 matching lines @@
   snd_mixer_t* mixer_handle_; // Handle to the ALSA microphone mixer.
   snd_mixer_elem_t* mixer_element_handle_; // Handle to the capture element.
   base::WeakPtrFactory<AlsaPcmInputStream> weak_factory_;
   scoped_array<uint8> audio_packet_;  // Buffer used for reading audio data.
   bool read_callback_behind_schedule_;
 
   DISALLOW_COPY_AND_ASSIGN(AlsaPcmInputStream);
 };
 
 #endif  // MEDIA_AUDIO_LINUX_ALSA_INPUT_H_