Add support for directory access to the file system API.

chrome/browser/extensions/api/file_handlers/app_file_handler_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 CHROME_BROWSER_EXTENSIONS_API_FILE_HANDLERS_APP_FILE_HANDLER_UTIL_H_
 #define CHROME_BROWSER_EXTENSIONS_API_FILE_HANDLERS_APP_FILE_HANDLER_UTIL_H_
 
 #include <set>
 #include <string>
 #include <utility>
@@ skipping 31 matching lines @@
 FindFileHandlersForFiles(const Extension& extension,
                          const PathAndMimeTypeSet& files);
 
 bool FileHandlerCanHandleFile(
     const FileHandlerInfo& handler,
     const std::string& mime_type,
     const base::FilePath& path);
 
 // Refers to a file entry that a renderer has been given access to.
 struct GrantedFileEntry {
+  GrantedFileEntry();
+
   std::string id;
   std::string filesystem_id;
   std::string registered_name;
 };
 
 // Creates a new file entry and allows |renderer_id| to access |path|. This
 // registers a new file system for |path|.
 GrantedFileEntry CreateFileEntry(
     Profile* profile,
     const Extension* extension,
     int renderer_id,
-    const base::FilePath& path);
+    const base::FilePath& path,
+    bool is_directory);
 
 void CheckWritableFiles(
     const std::vector<base::FilePath>& paths,
     Profile* profile,
+    bool is_directory,
     const base::Closure& on_success,
     const base::Callback<void(const base::FilePath&)>& on_failure);
 
 // Returns whether |extension| has the fileSystem.write permission.
 bool HasFileSystemWritePermission(const Extension* extension);
 
 }  // namespace app_file_handler_util
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_FILE_HANDLERS_APP_FILE_HANDLER_UTIL_H_