Use dom-if to hide settings pages and show explicitly.

chrome/browser/resources/settings/advanced_page/advanced_page.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-advanced-page' is the settings page containing the advanced
  * settings.
  *
  * Example:
@@ skipping 19 matching lines @@
       notify: true,
     },
 
     /**
      * The current active route.
      */
     currentRoute: {
       type: Object,
       notify: true,
     },
+
+    /**
+     * The site-settings-category type for the location page.
+     */
+    locationCategory: {
+      type: Number,
+      value: settings.ContentSettingsTypes.GEOLOCATION,
+    },
   },
 
-  ready: function() {
-    this.$.locationCategory.category =
-        settings.ContentSettingsTypes.GEOLOCATION;
-  },
+  behaviors: [SettingsPageVisibility],
 });