Switch to standard integer types in rlz/.

rlz/win/lib/registry_util.h

 // 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.
 
 #ifndef RLZ_WIN_LIB_REGISTRY_UTIL_H_
 #define RLZ_WIN_LIB_REGISTRY_UTIL_H_
 
+#include <stddef.h>
+
 namespace base {
 namespace win {
 class RegKey;
 }  // namespace win
 }  // namespace base
 
 namespace rlz_lib {
 
 bool RegKeyReadValue(const base::win::RegKey& key,
                      const wchar_t* name,
                      char* value,
                      size_t* value_size);
 
 bool RegKeyWriteValue(base::win::RegKey* key,
                       const wchar_t* name,
                       const char* value);
 
 bool HasUserKeyAccess(bool write_access);
 
 }  // namespace rlz_lib
 
 #endif  // RLZ_WIN_LIB_REGISTRY_UTIL_H_