Refactor: remove a Chromevox abstract class.

chrome/browser/resources/chromeos/chromevox/chromevox/messages/msgs.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 A cvox.AbstractMsgs implementation for Chrome.
+ * @fileoverview Defines methods related to retrieving translated messages.
  */
 
-goog.provide('cvox.ChromeMsgs');
+goog.provide('cvox.Msgs');
 
-goog.require('cvox.AbstractMsgs');
-goog.require('cvox.HostFactory');
-
+/**
+ * @constructor
+ */
+cvox.Msgs = function() {
+};
 
 
 /**
- * @constructor
- * @extends {cvox.AbstractMsgs}
- */
-cvox.ChromeMsgs = function() {
-  cvox.AbstractMsgs.call(this);
-};
-goog.inherits(cvox.ChromeMsgs, cvox.AbstractMsgs);
-
-
-/**
  * The namespace for all Chromevox messages.
  * @type {string}
  * @const
  * @private
  */
-cvox.ChromeMsgs.NAMESPACE_ = 'chromevox_';
+cvox.Msgs.NAMESPACE_ = 'chromevox_';
 
 
 /**
  * Return the current locale.
  * @return {string} The locale.
  */
-cvox.ChromeMsgs.prototype.getLocale = function() {
+cvox.Msgs.prototype.getLocale = function() {
   return chrome.i18n.getMessage('locale');
 };
 
 
 /**
  * Returns the message with the given message id from the ChromeVox namespace.
  *
  * If we can't find a message, throw an exception.  This allows us to catch
  * typos early.
  *
- * @param {string} message_id The id.
+ * @param {string} messageId The id.
  * @param {Array.<string>=} opt_subs Substitution strings.
  * @return {string} The message.
  */
-cvox.ChromeMsgs.prototype.getMsg = function(message_id, opt_subs) {
+cvox.Msgs.prototype.getMsg = function(messageId, opt_subs) {
   var message = chrome.i18n.getMessage(
-      cvox.ChromeMsgs.NAMESPACE_ + message_id, opt_subs);
+      cvox.Msgs.NAMESPACE_ + messageId, opt_subs);
   if (message == undefined || message == '') {
-    throw new Error('Invalid ChromeVox message id: ' + message_id);
+    throw new Error('Invalid ChromeVox message id: ' + messageId);
   }
   return message;
 };
 
 
 /**
  * Processes an HTML DOM the text of "i18n" elements with translated messages.
  * This function expects HTML elements with a i18n clean and a msgid attribute.
  *
  * @param {Node} root The root node where the translation should be performed.
  */
-cvox.ChromeMsgs.prototype.addTranslatedMessagesToDom = function(root) {
+cvox.Msgs.prototype.addTranslatedMessagesToDom = function(root) {
   var elts = root.querySelectorAll('.i18n');
   for (var i = 0; i < elts.length; i++) {
     var msgid = elts[i].getAttribute('msgid');
     if (!msgid) {
       throw new Error('Element has no msgid attribute: ' + elts[i]);
     }
     elts[i].textContent = this.getMsg(msgid);
     elts[i].classList.add('i18n-processed');
   }
 };
 
 
 /**
  * Retuns a number formatted correctly.
  *
  * @param {number} num The number.
  * @return {string} The number in the correct locale.
  */
-cvox.ChromeMsgs.prototype.getNumber = function(num) {
+cvox.Msgs.prototype.getNumber = function(num) {
   return '' + num;
 };
-
-cvox.HostFactory.msgsConstructor = cvox.ChromeMsgs;