Switch to standard integer types in base/.

base/template_util.h

 // 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.
 
 #ifndef BASE_TEMPLATE_UTIL_H_
 #define BASE_TEMPLATE_UTIL_H_
 
-#include <cstddef>  // For size_t.
+#include <stddef.h>
 
 #include "build/build_config.h"
 
 namespace base {
 
 // template definitions from tr1
 
 template<class T, T v>
 struct integral_constant {
   static const T value = v;
@@ skipping 94 matching lines @@
 template <typename T>
 struct is_class
     : integral_constant<bool,
                         sizeof(internal::IsClassHelper::Test<T>(0)) ==
                             sizeof(internal::YesType)> {
 };
 
 }  // namespace base
 
 #endif  // BASE_TEMPLATE_UTIL_H_