Make earcon ids strings instead of numbers.

chrome/browser/resources/chromeos/chromevox/extensions/searchvox/search.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 Uses ChromeVox API to enhance the search experience.
  */
 
 goog.provide('cvox.Search');
@@ skipping 220 matching lines @@
    * has focus.
    */
   if (document.activeElement !== searchInput &&
       !cvox.SearchUtil.isSearchWidgetActive()) {
     switch (evt.keyCode) {
     case cvox.SearchConstants.KeyCode.UP:
       /* Add results.length because JS Modulo is silly. */
       cvox.Search.index = cvox.SearchUtil.subOneWrap(cvox.Search.index,
         cvox.Search.results.length);
       if (cvox.Search.index === cvox.Search.results.length - 1) {
-        cvox.ChromeVox.earcons.playEarconByName('WRAP');
+        cvox.ChromeVox.earcons.playEarcon(cvox.Earcon.WRAP);
       }
       cvox.Search.syncToIndex();
       break;
 
     case cvox.SearchConstants.KeyCode.DOWN:
       cvox.Search.index = cvox.SearchUtil.addOneWrap(cvox.Search.index,
         cvox.Search.results.length);
       if (cvox.Search.index === 0) {
-        cvox.ChromeVox.earcons.playEarconByName('WRAP');
+        cvox.ChromeVox.earcons.playEarcon(cvox.Earcon.WRAP);
       }
       cvox.Search.syncToIndex();
       break;
 
     case cvox.SearchConstants.KeyCode.PAGE_UP:
       cvox.Search.navigatePage(false);
       break;
 
     case cvox.SearchConstants.KeyCode.PAGE_DOWN:
       cvox.Search.navigatePage(true);
@@ skipping 171 matching lines @@
     return;
   }
 
   cvox.Search.populateResults();
   cvox.Search.populatePanes();
   cvox.Search.paneIndex = cvox.Search.getSelectedPaneIndex();
 
   cvox.Search.initialSync();
 
 };