Web expose FileSystemFileEntry, FileSystemDirectoryEntry and friends

chrome/test/data/extensions/platform_apps/get_display_path/test.js

 // 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.
 
 chrome.app.runtime.onLaunched.addListener(function (launchData) {
   // Test that the isKioskSession field is |false| and the items field is
-  // populated correctly in the launch data and that the FileEntry in
+  // populated correctly in the launch data and that the FileSystemFileEntry in
   // launchData.items[0].entry can have its display path gotten.
   chrome.test.runTests([
     function testGetDisplayPath() {
       chrome.test.assertFalse(!launchData, "No launchData");
       chrome.test.assertFalse(launchData.isKioskSession,
           "launchData.isKioskSession incorrect");
       chrome.test.assertFalse(!launchData.items[0], "No launchData.items[0]");
       chrome.test.assertFalse(!launchData.items[0].entry,
                               "No launchData.items[0].entry");
       var entry = launchData.items[0].entry;
       chrome.fileSystem.getDisplayPath(entry,
           chrome.test.callbackPass(function(path) {
         chrome.test.assertFalse(path.indexOf('test.txt') == -1);
       }));
     }
   ]);
 });