Add support for in-page links in ChromeVox.

chrome/browser/resources/chromeos/chromevox/common/dom_util.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 collection of JavaScript utilities used to simplify working
  * with the DOM.
  */
 
 
@@ skipping 728 matching lines @@
   while (leftmost && leftmost.firstChild) {
     leftmost = leftmost.firstChild;
   }
 
   // Do nothing if we're not at the leftmost leaf.
   if (firstListitem &&
       firstListitem.parentNode &&
       opt_index == 0 &&
       firstListitem.parentNode.tagName == 'OL' &&
           node == leftmost &&
-      document.defaultView.getComputedStyle(firstListitem.parentNode)
+      document.defaultView.getComputedStyle(firstListitem.parentElement)
           .listStyleType != 'none') {
     var items = cvox.DomUtil.toArray(firstListitem.parentNode.children).filter(
         function(li) { return li.tagName == 'LI'; });
     var position = items.indexOf(firstListitem) + 1;
     // TODO(dtseng): Support all list style types.
     if (document.defaultView.getComputedStyle(
-            firstListitem.parentNode).listStyleType.indexOf('latin') != -1) {
+            firstListitem.parentElement).listStyleType.indexOf('latin') != -1) {
       position--;
       prefix = String.fromCharCode('A'.charCodeAt(0) + position % 26);
     } else {
       prefix = position;
     }
     prefix += '. ';
   }
   return prefix;
 };
 
@@ skipping 1834 matching lines @@
         var describedNode = document.getElementById(describedById);
         if (describedNode) {
           desc += ' ' + cvox.DomUtil.getName(
               describedNode, true, true, true);
         }
       }
     }
   }
   return desc;
 };