MD Settings: Hook up languages_page to new LifetimeBrowserProxy.

chrome/browser/resources/settings/languages_page/language_detail_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-language-detail-page' is a sub-page for editing
  * an individual language's settings.
  */
 Polymer({
   is: 'settings-language-detail-page',
@@ skipping 157 matching lines @@
       // Reset the chosen UI language to the actual UI language.
       this.languageHelper_.resetUILanguage();
     }
   },
 
   /**
    * Handler for the restart button.
    * @private
    */
   onRestartTap_: function() {
-    chrome.send('restart');
+<if expr="chromeos">
+    settings.LifetimeBrowserProxyImpl.getInstance().logOutAndRestart();
+</if>
+<if expr="not chromeos">
+    settings.LifetimeBrowserProxyImpl.getInstance().restart();
+</if>
   },
 });