Switch to standard integer types in ipc/.

ipc/ipc_message_attachment_set_posix_unittest.cc

 // Copyright (c) 2011 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.
 
 // This test is POSIX only.
 
 #include "ipc/ipc_message_attachment_set.h"
 
 #include <fcntl.h>
+#include <stddef.h>
 #include <unistd.h>
 
 #include "base/posix/eintr_wrapper.h"
+#include "build/build_config.h"
 #include "ipc/ipc_platform_file_attachment_posix.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace IPC {
 namespace {
 
 // Get a safe file descriptor for test purposes.
 int GetSafeFd() {
   return open("/dev/null", O_RDONLY);
 }
@@ skipping 186 matching lines @@
   const int fd = GetSafeFd();
   ASSERT_TRUE(set->AddAttachment(
       new internal::PlatformFileAttachment(base::ScopedFD(fd))));
   set->CommitAllDescriptors();
 
   ASSERT_TRUE(VerifyClosed(fd));
 }
 
 }  // namespace
 }  // namespace IPC