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

ui/file_manager/integration_tests/file_manager/tab_index.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';
 
 /**
  * Tests the focus behavior of the search box.
  */
 testcase.searchBoxFocus = function() {
   var appId;
   StepsRunner.run([
     // Set up File Manager.
     function() {
       setupAndWaitUntilReady(null, RootPath.DRIVE, this.next);
     },
     // Check that the file list has the focus on launch.
     function(results) {
       appId = results.windowId;
       remoteCall.waitForElement(appId, ['#file-list:focus']).then(this.next);
     },
     // Press the Ctrl-F key.
     function(element) {
       remoteCall.callRemoteTestUtil(
           'fakeKeyDown', appId,
-          ['body', 'U+0046', true, false, false],
+          ['body', 'f', 'U+0046', true, false, false],
           this.next);
     },
     // Check that the search box has the focus.
     function(result) {
       chrome.test.assertTrue(result);
       remoteCall.waitForElement(appId, ['#search-box input:focus']).
           then(this.next); },
     // Press the Esc key.
     function(element) {
       remoteCall.callRemoteTestUtil(
           'fakeKeyDown', appId,
-          ['#search-box input', 'U+001B', false, false, false],
+          ['#search-box input', 'Escape', 'U+001B', false, false, false],
           this.next);
     },
     // Check that the file list has the focus.
     function(result) {
       chrome.test.assertTrue(result);
       remoteCall.checkNextTabFocus(appId, 'file-list').then(this.next);
     },
     // Check for errors.
     function(result) {
       chrome.test.assertTrue(result);
@@ skipping 214 matching lines @@
       promise = promise.then(function() {
         return remoteCall.checkNextTabFocus(appId, className);
       }).then(function(result) {
         chrome.test.assertTrue(result);
       });
     });
 
     promise = promise.then(function() {
       // Closes the window by pressing Enter.
       return remoteCall.callRemoteTestUtil(
-          'fakeKeyDown', appId, ['#file-list', 'Enter', false, false, false]);
+          'fakeKeyDown', appId, ['#file-list', 'Enter', 'Enter', false, false,
+                                 false]);
     });
 
     return promise;
   };
 
   return setupPromise.then(function() {
     return openAndWaitForClosingDialog(
         dialogParams, volumeName, expectedSet, selectAndCheckAndClose);
   });
 }
@@ skipping 52 matching lines @@
       {
         type: 'saveFile',
         suggestedName: 'hoge.txt'  // Prevent showing a override prompt
       },
       'drive', BASIC_DRIVE_ENTRY_SET, null,
       ['#ok-button:not([disabled])'],
       ['ok-button', 'cancel-button', 'search-button', 'view-button',
        'sort-button', 'gear-button', 'directory-tree', 'file-list',
        'new-folder-button', 'filename-input-textbox']));
 };