Switch to standard integer types in ipc/.

ipc/test_util_mac.cc

 // Copyright 2015 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 "ipc/test_util_mac.h"
 
 #include <mach/mach_vm.h>
 #include <servers/bootstrap.h>
+#include <stddef.h>
 
 #include "base/mac/mach_logging.h"
 #include "base/mac/scoped_mach_port.h"
 #include "base/rand_util.h"
 #include "base/strings/stringprintf.h"
 
 namespace {
 
 // Structs used to pass a Mach port over mach_msg().
 struct MachSendPortMessage {
@@ skipping 114 matching lines @@
     MACH_LOG(ERROR, kr) << "Failed to get region info.";
     return false;
   }
 
   *current = basic_info.protection;
   *max = basic_info.max_protection;
   return true;
 }
 
 }  // namespace IPC