Switch to standard integer types in mojo/.

mojo/edk/test/test_utils_win.cc

 // 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.
 
 #include "mojo/edk/test/test_utils.h"
 
 #include <windows.h>
 #include <fcntl.h>
 #include <io.h>
+#include <stddef.h>
 #include <string.h>
 
 namespace mojo {
 namespace edk {
 namespace test {
 
 bool BlockingWrite(const PlatformHandle& handle,
                    const void* buffer,
                    size_t bytes_to_write,
                    size_t* bytes_written) {
@@ skipping 85 matching lines @@
   base::ScopedFILE rv(_fdopen(
       _open_osfhandle(reinterpret_cast<intptr_t>(h.release().handle), flags),
       mode));
   PCHECK(rv) << "_fdopen";
   return rv.Pass();
 }
 
 }  // namespace test
 }  // namespace edk
 }  // namespace mojo