Add UIPI support for sandbox alternate desktop

sandbox/win/src/restricted_token_utils.h

 // Copyright (c) 2006-2008 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_RESTRICTED_TOKEN_UTILS_H__
 #define SANDBOX_SRC_RESTRICTED_TOKEN_UTILS_H__
 
 #include <accctrl.h>
 #include <windows.h>
 
@@ skipping 55 matching lines @@
 // Sets the integrity label on a object handle.
 DWORD SetObjectIntegrityLabel(HANDLE handle, SE_OBJECT_TYPE type,
                               const wchar_t* ace_access,
                               const wchar_t* integrity_level_sid);
 
 // Sets the integrity level on a token. This is only valid on Vista. It returns
 // without failing on XP. If the integrity level that you specify is greater
 // than the current integrity level, the function will fail.
 DWORD SetTokenIntegrityLevel(HANDLE token, IntegrityLevel integrity_level);
 
+// Returns the integrity level SDDL string associated with a given
+// IntegrityLevel value.
+const wchar_t* GetIntegrityLevelString(IntegrityLevel integrity_level);
+
 // Sets the integrity level on the current process on Vista. It returns without
 // failing on XP. If the integrity level that you specify is greater than the
 // current integrity level, the function will fail.
 DWORD SetProcessIntegrityLevel(IntegrityLevel integrity_level);
 
 }  // namespace sandbox
 
 #endif  // SANDBOX_SRC_RESTRICTED_TOKEN_UTILS_H__