Send 'key' from fake keyboard events generated by file_manager.

ui/file_manager/integration_tests/file_manager/folder_shortcuts.js

 // Copyright 2014 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.
 
 'use strict';
 
 /**
  * Constants for selectors.
  */
 var TREEITEM_DRIVE = '#directory-tree > div:nth-child(1) > .tree-children ' +
@@ skipping 281 matching lines @@
     function() {
       expectSelection(
           windowId, DIRECTORY.Drive, DIRECTORY.Drive).then(this.next);
     },
 
     // Press Ctrl+4 to select 4th shortcut.
     // Current directory should be D.
     // Shortcut to C should be selected.
     function() {
       remoteCall.callRemoteTestUtil('fakeKeyDown', windowId,
-          ['#file-list', 'U+0034', true, false, false], this.next);
+          ['#file-list', '4', 'U+0034', true, false, false], this.next);
     },
     function(result) {
       chrome.test.assertTrue(result);
       expectSelection(windowId, DIRECTORY.D, DIRECTORY.D).then(this.next);
     },
 
     // Press UP to select 3rd shortcut.
     // Current directory should remain D.
     // Shortcut to C should be selected.
     function() {
       remoteCall.callRemoteTestUtil('fakeKeyDown', windowId,
-          ['#directory-tree', 'Up', false, false, false], this.next);
+          ['#directory-tree', 'ArrowUp', 'Up', false, false, false], this.next);
     },
     function(result) {
       chrome.test.assertTrue(result);
       expectSelection(windowId, DIRECTORY.D, DIRECTORY.C).then(this.next);
     },
 
     // Press Enter to change the directory to C.
     // Current directory should be C.
     function() {
       remoteCall.callRemoteTestUtil('fakeKeyDown', windowId,
-          ['#directory-tree', 'Enter', false, false, false], this.next);
+          ['#directory-tree', 'Enter', 'Enter', false, false, false],
+           this.next);
     },
     function(result) {
       chrome.test.assertTrue(result);
       expectSelection(windowId, DIRECTORY.C, DIRECTORY.C).then(this.next);
     },
 
     function() {
       checkIfNoErrorsOccured(this.next);
     }
   ]);
@@ skipping 69 matching lines @@
       remoteCall.waitForElement(windowId1, TREEITEM_D + '[selected]').
           then(this.next);
     },
 
     function() {
       checkIfNoErrorsOccured(this.next);
     }
   ]);
 };