Settings Router Refactor: Kill settings-router.

chrome/browser/resources/settings/settings_page/settings_section.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-section' shows a paper material themed section with a header
  * which shows its page title.
  *
  * Example:
  *
  *    <settings-section page-title="[[pageTitle]]" section="privacy">
  *      <!-- Insert your section controls here -->
  *    </settings-section>
  */
 Polymer({
   is: 'settings-section',
 
   properties: {
     /**
-     * The current active route.
-     */
-    currentRoute: Object,
-
-    /**
      * The section is expanded to a full-page view when this property matches
      * currentRoute.section.
      *
-     * The section name must match the name specified in settings_router.js.
+     * The section name must match the name specified in route.js.
      */
     section: {
       type: String,
     },
 
     /**
      * Title for the page header and navigation menu.
      */
     pageTitle: String,
   },
 });