Add support for in-page links in ChromeVox.

chrome/browser/resources/chromeos/chromevox/common/dom_util.js

Index: chrome/browser/resources/chromeos/chromevox/common/dom_util.js
diff --git a/chrome/browser/resources/chromeos/chromevox/common/dom_util.js b/chrome/browser/resources/chromeos/chromevox/common/dom_util.js
index 827b062f30d98049aa1a419fc210cde12b52c8fd..c8d4fd69e689bf2c81eba748818bb7df26068555 100644
--- a/chrome/browser/resources/chromeos/chromevox/common/dom_util.js
+++ b/chrome/browser/resources/chromeos/chromevox/common/dom_util.js
@@ -746,14 +746,14 @@ cvox.DomUtil.getPrefixText = function(node, opt_index) {
       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 {