[MD settings] closure compilation

chrome/browser/resources/settings/default_browser_page/default_browser_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-default-browser-page' is the settings page that contains
  * settings to change the default browser (i.e. which the OS will open).
  */
 Polymer({
@@ skipping 37 matching lines @@
      */
     showButton_: {
       type: Boolean,
     },
   },
 
   ready: function() {
     var self = this;
     cr.define('Settings', function() {
       return {
-        setAsDefaultConcluded: function() {
-          return self.setAsDefaultConcluded_.apply(self, arguments);
-        },
         updateDefaultBrowserState: function() {
           return self.updateDefaultBrowserState_.apply(self, arguments);
         },
       };
     });
     chrome.send('SettingsDefaultBrowser.requestDefaultBrowserState');
   },
 
   /**
    * @param {boolean} isDefault Whether Chrome is currently the user's default
    *   browser.
    * @param {boolean} canBeDefault Whether Chrome can be the default browser on
    *   this system.
    * @private
    */
   updateDefaultBrowserState_: function(isDefault, canBeDefault) {
     if (this.startedSetAsDefault_ && !isDefault) {
       this.startedSetAsDefault_ = false;
       this.showError_ = true;
     } else {
       this.showError_ = false;
     }
 
     this.showButton_ = !isDefault && canBeDefault;
-    if (!this.showButton) {
+    if (!this.showButton_) {
       this.message_ = loadTimeData.getString(
           canBeDefault ? 'defaultBrowserDefault' : 'defaultBrowserUnknown');
     }
   },
 
   /** @private */
   onSetDefaultBrowserTap_: function() {
     this.startedSetAsDefault_ = true;
     chrome.send('SettingsDefaultBrowser.setAsDefaultBrowser');
   },
 });