Switch to standard integer types in extensions/.

extensions/common/permissions/base_set_operators.h

 // Copyright 2013 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 EXTENSIONS_COMMON_PERMISSIONS_BASE_SET_OPERATORS_H_
 #define EXTENSIONS_COMMON_PERMISSIONS_BASE_SET_OPERATORS_H_
 
+#include <stddef.h>
+
 #include <iterator>
 #include <map>
 
 #include "base/memory/linked_ptr.h"
 #include "base/template_util.h"
 
 namespace extensions {
 
 // Traits for template paramater of |BaseSetOperators<T>|. Specializations
 // should define |ElementType| for the type of elements to store in the set,
@@ skipping 261 matching lines @@
     map_.clear();
   }
 
  private:
   Map map_;
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_COMMON_PERMISSIONS_BASE_SET_OPERATORS_H_