Remove a superfluous <li> wrapper on chrome://extensions

chrome/browser/resources/extensions/extension_error.js

 // Copyright 2013 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.
 
 cr.define('extensions', function() {
   'use strict';
 
   /**
    * Clone a template within the extension error template collection.
    * @param {string} templateName The class name of the template to clone.
@@ skipping 211 matching lines @@
 
     /**
      * Adds an error to the list.
      * @param {(RuntimeError|ManifestError)} error The error to add.
      * @private
      */
     addError_: function(error) {
       this.querySelector('#no-errors-span').hidden = true;
       this.errors_.push(error);
       var focusRow = new ExtensionError(error, this.listContents_);
-      this.listContents_.appendChild(document.createElement('li')).
-          appendChild(focusRow);
+      this.listContents_.appendChild(focusRow);
       this.focusGrid_.addRow(focusRow);
     },
 
     /**
      * Removes an error from the list.
      * @param {(RuntimeError|ManifestError)} error The error to remove.
      * @private
      */
     removeError_: function(error) {
       var index = 0;
@@ skipping 131 matching lines @@
     onFocus_: function() {
       var activeRow = this.listContents_.querySelector('.focus-row-active');
       activeRow.getEquivalentElement(null).focus();
     },
   };
 
   return {
     ExtensionErrorList: ExtensionErrorList
   };
 });