Files app test harness improvements.

chrome/browser/resources/file_manager/js/mock_chrome.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.
 
 function MockEventSource() {
   this.listeners_ = [];
 }
 
 /**
  * Add a listener.
@@ skipping 32 matching lines @@
   for (var key in object)
     if (object.hasOwnProperty(key))
       clone[key] = object[key];
   return clone;
 }
 
 /**
  * Mock out the chrome.fileBrowserPrivate API for use in the harness.
  */
 chrome.fileBrowserPrivate = {
+  /**
+   * Change to window.TEMPORARY if you do not insist on persistence.
+   */
+  FS_TYPE: window.PERSISTENT,
 
   /**
    * Return a normal HTML5 filesystem api, rather than the real local
    * filesystem.
    *
-   * You must start chrome with --allow-file-access-from-files and
-   * --unlimited-quota-for-files in order for this to work.
+   * If the test harness is on file: schema you must start chrome with
+   * --allow-file-access-from-files in order for this to work.
    */
   requestLocalFileSystem: function(callback) {
-    window.webkitRequestFileSystem(window.PERSISTENT, 16 * 1024 * 1024,
-                                   callback,
-                                   util.ferr('Error requesting filesystem'));
+    window.webkitRequestFileSystem(this.FS_TYPE,
+        16 * 1024 * 1024, callback, util.ferr('Error requesting filesystem'));
   },
 
   /**
    * View multiple files.
    */
   viewFiles: function(urls, actionId, callback) {
     var success = true;
     for (var i = 0; i != urls.length; i++) {
       var url = urls[i];
       if (!url.match(/\.(pdf|txt)$/i)) {
@@ skipping 762 matching lines @@
 
   setWindowHeight: function(height) {
     this.popup_.style.height = height + 'px';
   },
 
   closeWindow: function() {
     this.popup_.parentNode.removeChild(this.popup_);
     this.popup_ = null;
   }
 };