Revert of Implement ChromeVox Next menus.

chrome/browser/resources/chromeos/chromevox/chromevox/injected/history.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 Stores the history of a ChromeVox session.
  */
 
 goog.provide('cvox.History');
@@ skipping 326 matching lines @@
 /** @override */
 cvox.History.prototype.isSpeaking = function() { return false; };
 /** @override */
 cvox.History.prototype.stop = function() { };
 /** @override */
 cvox.History.prototype.addCapturingEventListener = function(listener) { };
 /** @override */
 cvox.History.prototype.increaseOrDecreaseProperty =
     function(propertyName, increase) { };
 /** @override */
-cvox.History.prototype.propertyToPercentage = function(property) { };
-/** @override */
 cvox.History.prototype.getDefaultProperty = function(property) { };
 
 
 /** TODO: add doc comment. */
 cvox.History.dumpJs = function() {
   var history = cvox.History.getInstance();
   history.addBigTextBox_();
   window.console.log(history.dumpJsOutput_());
 };
 
@@ skipping 40 matching lines @@
 
   feedbackScript.onload = function() {
     document.body.appendChild(runFeedbackScript);
   };
 
   document.body.appendChild(feedbackScript);
 };
 
 
 // Add more events: key press, DOM