cros: Fix hotrod remote arrow keys not working on gaia for CFM oobe

chrome/browser/resources/chromeos/keyboard/keyboard_utils.js

 // Copyright (c) 2013 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.
 
 /**
  * Namespace for keyboard utility functions.
  */
 var keyboard = {};
 
 /**
@@ skipping 34 matching lines @@
 };
 
 /**
  * Swallows keypress and keyup events of arrow keys.
  * @param {!Event} event Raised event.
  * @private
  */
 keyboard.onKeyIgnore_ = function(event) {
   event = /** @type {!KeyboardEvent} */(event);
 
-  if (hasKeyModifiers(event))
+  if (event.ctrlKey || event.shiftKey || event.altKey || event.metaKey)
     return;
 
   if (event.key == 'ArrowLeft' ||
       event.key == 'ArrowRight' ||
       event.key == 'ArrowUp' ||
       event.key == 'ArrowDown') {
     event.stopPropagation();
     event.preventDefault();
   }
 };
 
 /**
  * Handles arrow key events, depending on if self is a content script.
  * @param {!Event} event Raised event.
  * @private
  */
 keyboard.onKeyDown_ = function(event) {
   event = /** @type {!KeyboardEvent} */(event);
 
-  if (hasKeyModifiers(event))
+  if (event.ctrlKey || event.shiftKey || event.altKey || event.metaKey)
     return;
 
   // This file also gets embedded inside of the CfM/hotrod enrollment webview.
   // Events will bubble down into the webview, which means that the event
   // handler from the webui will steal the events meant for the webview. So we
   // have to disable the webui handler if the active element is the webview.
   //
   // $ is defined differently depending on how this file gets executed; we have
   // to use document.getElementById to get consistent behavior.
   //
@@ skipping 44 matching lines @@
 keyboard.initializeKeyboardFlow = function(injected) {
   document.addEventListener('keydown',
       keyboard.onKeyDown_, true);
   document.addEventListener('keypress',
       keyboard.onKeyIgnore_, true);
   document.addEventListener('keyup',
       keyboard.onKeyIgnore_, true);
   if (injected)
     window.addEventListener('message', keyboard.onInitMessage_);
 };