Switch to standard integer types in chromeos/.

chromeos/process_proxy/process_proxy.cc

 // Copyright (c) 2012 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 "chromeos/process_proxy/process_proxy.h"
 
+#include <stddef.h>
 #include <stdlib.h>
 #include <sys/ioctl.h>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/files/file_util.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/posix/eintr_wrapper.h"
 #include "base/process/launch.h"
@@ skipping 216 matching lines @@
   }
   *fd = kInvalidFd;
 }
 
 void ProcessProxy::ClearFdPair(int* pipe) {
   pipe[PT_MASTER_FD] = kInvalidFd;
   pipe[PT_SLAVE_FD] = kInvalidFd;
 }
 
 }  // namespace chromeos