Check-in rlz code to src\rlz from http://code.google.com/p/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_
+
+namespace base {
+namespace win {
+class RegKey;
+}  // namespace win
+}  // namespace base
+
+namespace rlz_lib {
+
+bool RegKeyReadValue(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_