[Chrome Settings UI] Show overruled User Exceptions as strike-through.

chrome/browser/resources/options/inline_editable_list.js

 // Copyright (c) 2012 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('options', function() {
   /** @const */ var DeletableItem = options.DeletableItem;
   /** @const */ var DeletableItemList = options.DeletableItemList;
 
   /**
    * Creates a new list item with support for inline editing.
@@ skipping 309 matching lines @@
      * @param {string} text The text of the cell.
      * @return {HTMLElement} The HTML element for the cell.
      * @private
      */
     createEditableTextCell: function(text) {
       var container = /** @type {HTMLElement} */(
           this.ownerDocument.createElement('div'));
       var textEl = null;
       if (!this.isPlaceholder) {
         textEl = this.ownerDocument.createElement('div');
-        textEl.className = 'static-text';
+        textEl.className = 'static-text overruleable';
         textEl.textContent = text;
         textEl.setAttribute('displaymode', 'static');
         container.appendChild(textEl);
       }
 
       var inputEl = this.ownerDocument.createElement('input');
       inputEl.type = 'text';
       inputEl.value = text;
       if (!this.isPlaceholder)
         inputEl.setAttribute('displaymode', 'edit');
@@ skipping 424 matching lines @@
           this.getListItemByIndex(0));
     },
   };
 
   // Export
   return {
     InlineEditableItem: InlineEditableItem,
     InlineEditableItemList: InlineEditableItemList,
   };
 });