Web expose FileSystemFileEntry, FileSystemDirectoryEntry and friends

third_party/WebKit/Source/devtools/front_end/host/InspectorFrontendHost.js

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 197 matching lines @@
    * @override
    * @param {string} fileSystemPath
    */
   removeFileSystem(fileSystemPath) {
   }
 
   /**
    * @override
    * @param {string} fileSystemId
    * @param {string} registeredName
-   * @return {?DOMFileSystem}
+   * @return {?FileSystem}
    */
   isolatedFileSystem(fileSystemId, registeredName) {
     return null;
   }
 
   /**
    * @override
    * @param {string} url
    * @param {string} headers
    * @param {number} streamId
@@ skipping 299 matching lines @@
  * @return {boolean}
  */
 Host.isUnderTest = function(prefs) {
   if (InspectorFrontendHost.isUnderTest())
     return true;
 
   if (prefs)
     return prefs['isUnderTest'] === 'true';
   return Common.settings.createSetting('isUnderTest', false).get();
 };