Fix ChromeVox Next compile.

chrome/browser/resources/chromeos/chromevox/common/chromevox.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.
 
 /**
  * @fileoverview Defines a global object. The initialization of this
  *   object happens in init.js.
  *
  */
 
@@ skipping 252 matching lines @@
 };
 
 /**
  * Shortcut for document.getElementById.
  * @param {string} id of the element.
  * @return {HTMLElement} with the id.
  */
 function $(id) {
   return document.getElementById(id);
 }
+
+/**
+ * @param {Array} tabs
+ * @param {boolean=} opt_forceCompile
+ */
+cvox.ChromeVox.injectChromeVoxIntoTabs = function(tabs, opt_forceCompile) {};