Switch to standard integer types in chrome/browser/, part 2 of 4.

chrome/browser/media/webrtc_browsertest_audio.cc

 // Copyright 2014 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.
 
 #include "chrome/browser/media/webrtc_browsertest_audio.h"
 
+#include <stddef.h>
+
 #include "base/files/file.h"
 #include "base/files/file_path.h"
 #include "media/audio/audio_parameters.h"
 #include "media/audio/audio_power_monitor.h"
 #include "media/audio/sounds/wav_audio_handler.h"
 #include "media/base/audio_bus.h"
 
 namespace {
 // Opens |wav_filename|, reads it and loads it as a wav file. This function will
 // bluntly trigger CHECKs if we can't read the file or if it's malformed. The
@@ skipping 50 matching lines @@
       media::AudioParameters::AUDIO_PCM_LOW_LATENCY,
       media::GuessChannelLayout(wav_audio_handler->num_channels()),
       wav_audio_handler->sample_rate(), wav_audio_handler->bits_per_sample(),
       wav_audio_handler->total_frames());
   file_parameters->set_channels_for_discrete(wav_audio_handler->num_channels());
 
   return power_monitor.ReadCurrentPowerAndClip().first;
 }
 
 }  // namespace test