Switch to standard integer types in chrome/.

chrome/utility/image_writer/image_writer_mac.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 <CoreFoundation/CoreFoundation.h>
 #include <IOKit/IOBSD.h>
 #include <IOKit/IOKitLib.h>
 #include <IOKit/storage/IOBlockStorageDevice.h>
 #include <IOKit/storage/IOMedia.h>
 #include <IOKit/storage/IOStorageProtocolCharacteristics.h>
+#include <stddef.h>
 #include <sys/socket.h>
 
 #include "base/command_line.h"
 #include "base/files/scoped_file.h"
 #include "base/mac/scoped_cftyperef.h"
 #include "base/mac/scoped_ioobject.h"
 #include "base/posix/eintr_wrapper.h"
 #include "base/process/kill.h"
 #include "base/process/launch.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 143 matching lines @@
 
   if (child_exit_status) {
     LOG(ERROR) << "Child process returned failure.";
     return false;
   }
 
   return device_file_.IsValid();
 }
 
 }  // namespace image_writer