Convert Site Details to settings-subpage.

chrome/browser/resources/settings/site_settings/site_details.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
  * 'site-details' show the details (permissions and usage) for a given origin
  * under Site Settings.
  */
 Polymer({
@@ skipping 16 matching lines @@
      */
     storedData_: {
       type: String,
       value: '',
     },
 
     /**
      * The type of storage for the origin.
      */
     storageType_: Number,
-
-    /**
-     * The current active route.
-     */
-    currentRoute: {
-      type: Object,
-      notify: true,
-    },
   },
 
   listeners: {
     'usage-deleted': 'onUsageDeleted',
   },
 
   ready: function() {
     this.ContentSettingsTypes = settings.ContentSettingsTypes;
   },
 
@@ skipping 46 matching lines @@
 
   /**
    * Returns true if one or more permission is showing.
    */
   permissionShowing_: function() {
     return Array.prototype.some.call(
         this.root.querySelectorAll('site-details-permission'),
         function(element) { return element.offsetHeight > 0; });
   },
 });