MD Settings: Cleanup, remove unnecessary <cr-settings> wrapper.

chrome/browser/resources/settings/settings_ui/settings_ui.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-ui' implements the UI for the Settings page.
  *
  * Example:
  *
  *    <settings-ui prefs="{{prefs}}"></settings-ui>
  */
+cr.exportPath('settings');
+assert(!settings.defaultResourceLoaded,
+       'settings_ui.js run twice. You probably have an invalid import.');
+/** Global defined when the main Settings script runs. */
+settings.defaultResourceLoaded = true;
+
 Polymer({
   is: 'settings-ui',
 
   properties: {
     /**
      * Preferences state.
      */
     prefs: Object,
 
     /** @type {?settings.DirectionDelegate} */
     directionDelegate: {
       observer: 'directionDelegateChanged_',
       type: Object,
+      value: new settings.DirectionDelegateImpl(),
     },
 
     /** @private {boolean} */
     toolbarSpinnerActive_: {
       type: Boolean,
       value: false,
     },
 
     /**
      * Dictionary defining page visibility.
      * @private {!GuestModePageVisibility}
      */
     pageVisibility_: Object,
   },
 
+  /** @override */
+  created: function() {
+    settings.initializeRouteFromUrl();
+  },
+
   /**
    * @override
    * @suppress {es5Strict} Object literals cannot contain duplicate keys in ES5
    *     strict mode.
    */
   ready: function() {
     this.$$('cr-toolbar').addEventListener('search-changed', function(e) {
       this.$$('settings-main').searchContents(e.detail);
     }.bind(this));
 
@@ skipping 55 matching lines @@
   onMenuButtonTap_: function() {
     this.$$('app-drawer').toggle();
   },
 
   /** @private */
   directionDelegateChanged_: function() {
     this.$$('app-drawer').align = this.directionDelegate.isRtl() ?
         'right' : 'left';
   },
 });