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

chrome/browser/media_galleries/fileapi/supported_audio_video_checker.cc

 // Copyright 2013 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_galleries/fileapi/supported_audio_video_checker.h"
 
+#include <stddef.h>
+
 #include <set>
 #include <vector>
 
 #include "base/bind.h"
 #include "base/callback.h"
 #include "base/lazy_instance.h"
 #include "base/location.h"
 #include "base/logging.h"
+#include "base/macros.h"
 #include "base/stl_util.h"
 #include "chrome/browser/media_galleries/fileapi/safe_audio_video_checker.h"
 #include "components/mime_util/mime_util.h"
 #include "content/public/browser/browser_thread.h"
 #include "net/base/mime_util.h"
 
 namespace {
 
 class SupportedAudioVideoExtensions {
  public:
@@ skipping 61 matching lines @@
 void SupportedAudioVideoChecker::OnFileOpen(base::File file) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::IO);
   if (!file.IsValid()) {
     callback_.Run(base::File::FILE_ERROR_SECURITY);
     return;
   }
 
   safe_checker_ = new SafeAudioVideoChecker(file.Pass(), callback_);
   safe_checker_->Start();
 }