Move basic API permissions code out of //chrome

extensions/common/permissions/permission_message_util.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 CHROME_COMMON_EXTENSIONS_PERMISSIONS_PERMISSION_MESSAGE_UTIL_H_
-#define CHROME_COMMON_EXTENSIONS_PERMISSIONS_PERMISSION_MESSAGE_UTIL_H_
+#ifndef EXTENSIONS_COMMON_PERMISSIONS_PERMISSION_MESSAGE_UTIL_H_
+#define EXTENSIONS_COMMON_PERMISSIONS_PERMISSION_MESSAGE_UTIL_H_
 
 #include <set>
 #include <string>
 
 namespace extensions {
 class PermissionMessage;
 class PermissionSet;
 class URLPatternSet;
 }
 
 namespace permission_message_util {
 
 // Creates the corresponding permission message for a list of hosts.
 // The messages change depending on what hosts are present.
 extensions::PermissionMessage CreateFromHostList(
     const std::set<std::string>& hosts);
 
 std::set<std::string> GetDistinctHosts(
     const extensions::URLPatternSet& host_patterns,
     bool include_rcd,
     bool exclude_file_scheme);
 
 }  // namespace permission_message_util
 
-#endif  // CHROME_COMMON_EXTENSIONS_PERMISSIONS_PERMISSION_MESSAGE_UTIL_H_
+#endif  // EXTENSIONS_COMMON_PERMISSIONS_PERMISSION_MESSAGE_UTIL_H_