Revert of Switch to standard integer types in sandbox/.

sandbox/mac/mach_message_server.h

 // 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.
 
 #ifndef SANDBOX_MAC_MACH_MESSAGE_SERVER_H_
 #define SANDBOX_MAC_MACH_MESSAGE_SERVER_H_
 
 #include <mach/mach.h>
-#include <stddef.h>
 
 #include "base/mac/dispatch_source_mach.h"
 #include "base/mac/scoped_mach_port.h"
 #include "base/mac/scoped_mach_vm.h"
 #include "base/memory/scoped_ptr.h"
 #include "sandbox/mac/message_server.h"
 
 namespace sandbox {
 
 // A Mach message server that operates a receive port. Messages are received
@@ skipping 44 matching lines @@
   // MACH_RECV dispatch source that handles the |server_port_|.
   scoped_ptr<base::DispatchSourceMach> dispatch_source_;
 
   // Whether or not ForwardMessage() was called during ReceiveMessage().
   bool did_forward_message_;
 };
 
 }  // namespace sandbox
 
 #endif  // SANDBOX_MAC_MACH_MESSAGE_SERVER_H_