Material WebUI: create shared icon file.

chrome/browser/resources/settings/site_settings/site_list.js

 // Copyright 2015 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
  * 'settings-site-list' shows a list of Allowed and Blocked sites for a given
  * category.
  */
 Polymer({
@@ skipping 169 matching lines @@
     this.$.category.hidden =
         !this.showSiteList_(this.sites, this.categoryEnabled);
   },
 
   /**
    * Handles the expanding and collapsing of the sites list.
    * @private
    */
   onToggle_: function(e) {
     if (this.$.category.opened)
-      this.$.icon.icon = 'icons:expand-less';
+      this.$.icon.icon = 'cr-icons:expand-less';
     else
-      this.$.icon.icon = 'icons:expand-more';
+      this.$.icon.icon = 'cr-icons:expand-more';
   },
 
   /**
    * Populate the sites list for display.
    * @private
    */
   populateList_: function() {
     if (this.allSites) {
       this.getAllSitesList_().then(function(lists) {
         this.processExceptions_(lists);
@@ skipping 242 matching lines @@
       return false;
 
     // The Block list is only shown when the category is set to Allow since it
     // is redundant to also list all the sites that are blocked.
     if (this.isAllowList_())
       return true;
 
     return toggleState;
   },
 });