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diff --git a/sandbox/src/sandbox_utils.h b/sandbox/src/sandbox_utils.h
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+// 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 SANDBOX_SRC_SANDBOX_UTILS_H__
+#define SANDBOX_SRC_SANDBOX_UTILS_H__
+
+#include <windows.h>
+#include <string>
+
+#include "base/basictypes.h"
+#include "sandbox/src/nt_internals.h"
+
+namespace sandbox {
+
+typedef BOOL (WINAPI* GetModuleHandleExFunction)(DWORD flags,
+                                                 LPCWSTR module_name,
+                                                 HMODULE* module);
+
+// Windows XP provides a nice function in kernel32.dll called GetModuleHandleEx
+// This function allows us to verify if a function exported by the module
+// lies in the module itself.
+// As we need compatibility with windows 2000, we cannot use this function
+// by calling it by name. This helper function checks if the GetModuleHandleEx
+// function is exported by kernel32 and uses it, otherwise, implemets part of
+// the functionality exposed by GetModuleHandleEx.
+bool GetModuleHandleHelper(DWORD flags, const wchar_t* module_name,
+                           HMODULE* module);
+
+// Returns true if the current OS is Windows XP SP2 or later.
+bool IsXPSP2OrLater();
+
+void InitObjectAttribs(const std::wstring& name, ULONG attributes, HANDLE root,
+                       OBJECT_ATTRIBUTES* obj_attr, UNICODE_STRING* uni_name);
+
+};  // namespace sandbox
+
+#endif  // SANDBOX_SRC_SANDBOX_UTILS_H__