This change enables Chrome to load locale information for the extension. It d...

chrome/browser/extensions/extension_file_util.h

 // Copyright (c) 2009 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_BROWSER_EXTENSIONS_EXTENSION_FILE_UTIL_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_FILE_UTIL_H_
 
 #include <string>
 
 #include "base/file_path.h"
@@ skipping 60 matching lines @@
                          std::string* error);
 
 // Uninstalls the extension |id| from the install directory |extensions_dir|.
 void UninstallExtension(const std::string& id, const FilePath& extensions_dir);
 
 // Clean up directories that aren't valid extensions from the install directory.
 // TODO(aa): Also consider passing in a list of known current extensions and
 // removing others?
 void GarbageCollectExtensions(const FilePath& extensions_dir);
 
+// We need to reserve the namespace of entries that start with "_" for future
+// use by Chrome.
+// If any files or directories are found using "_" prefix and are not on
+// reserved list we return false, and set error message.
+bool CheckForIllegalFilenames(const FilePath& extension_path,
+                              std::string* error);
+
 }  // extension_file_util
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_FILE_UTIL_H_