Add support for persistent file access in apps.

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 29 matching lines @@
 // |files| must be populated, but the MIME types are optional.
 std::vector<const FileHandlerInfo*>
 FindFileHandlersForFiles(const Extension& extension,
                          const PathAndMimeTypeSet& files);
 
 bool FileHandlerCanHandleFile(
     const FileHandlerInfo& handler,
     const std::string& mime_type,
     const base::FilePath& path);
 
-// Represents a file entry that a user has given an extension permission to
-// access. Intended to be persisted to disk (in the Preferences file), so should
-// remain serializable.
-struct SavedFileEntry {
-  SavedFileEntry(const std::string& id,
-                 const base::FilePath& path,
-                 bool writable)
-      : id(id),
-        path(path),
-        writable(writable) {}
-
-  std::string id;
-  base::FilePath path;
-  bool writable;
-};
-
 // Refers to a file entry that a renderer has been given access to.
 struct 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 std::string& extension_id,
     int renderer_id,
     const base::FilePath& path,
     bool writable);
 
-// Methods to adjust the file entry preferences for a given extension.
-void AddSavedFileEntry(ExtensionPrefs* prefs,
-                       const std::string& extension_id,
-                       const std::string& file_entry_id,
-                       const base::FilePath& file_path,
-                       bool writable);
-void GetSavedFileEntries(
-    const ExtensionPrefs* prefs,
-    const std::string& extension_id,
-    std::vector<app_file_handler_util::SavedFileEntry>* out);
-void ClearSavedFileEntries(ExtensionPrefs* prefs,
-                           const std::string& extension_id);
-
 }  // namespace app_file_handler_util
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_FILE_HANDLERS_APP_FILE_HANDLER_UTIL_H_