Switch to standard integer types in sandbox/.

sandbox/linux/tests/unit_tests.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 <fcntl.h>
 #include <poll.h>
 #include <signal.h>
+#include <stddef.h>
 #include <stdio.h>
 #include <sys/resource.h>
+#include <sys/time.h>
 #include <sys/types.h>
 #include <sys/wait.h>
-#include <sys/time.h>
 #include <time.h>
 #include <unistd.h>
 
 #include "base/debug/leak_annotations.h"
 #include "base/files/file_util.h"
 #include "base/posix/eintr_wrapper.h"
 #include "base/third_party/valgrind/valgrind.h"
 #include "build/build_config.h"
 #include "sandbox/linux/tests/unit_tests.h"
 
@@ skipping 329 matching lines @@
   fflush(stderr);
   _exit(kExitWithAssertionFailure);
 }
 
 void UnitTests::IgnoreThisTest() {
   fflush(stderr);
   _exit(kIgnoreThisTest);
 }
 
 }  // namespace