Reload Local NTP on default search provider change.

chrome/test/data/local_ntp_browsertest.js

 // Copyright 2013 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 Tests the local NTP.
  */
 
 
@@ skipping 51 matching lines @@
     }
   }
   return pass;
 }
 
 
 /**
  * Tests that Google NTPs show a fakebox and logo.
  */
 function testShowsFakeboxAndLogoIfGoogle() {
-  var localNTP = LocalNTP({href: 'isGoogle'});
+  var localNTP = LocalNTP();
+  configData.isGooglePage = true;

[samarth, 2013/07/17 16:39:45]

Nice.

   localNTP.init();
   assert($('fakebox'));
   assert($('logo'));
 }
 
 
 /**
  * Tests that non-Google NTPs do not show a fakebox.
  */
 function testDoesNotShowFakeboxIfNotGoogle() {
-  var localNTP = LocalNTP({href: ''});
+  var localNTP = LocalNTP();
+  configData.isGooglePage = false;
   localNTP.init();
   assert(!$('fakebox'));
   assert(!$('logo'));
 }