[MD History] Add URL parameter for search.

chrome/test/data/webui/md_history/history_list_test.js

 // Copyright 2016 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.
 
 cr.define('md_history.history_list_test', function() {
   function registerTests() {
     suite('history-list', function() {
       var app;
       var element;
       var toolbar;
@@ skipping 215 matching lines @@
 
           // Confirmation dialog should appear.
           assertTrue(listContainer.$.dialog.opened);
 
           MockInteractions.tap(listContainer.$$('.action-button'));
         });
       });
 
       teardown(function() {
         element.historyData_ = [];
-        element.searchedTerm = '';
         registerMessageCallback('removeVisits', this, undefined);
+        registerMessageCallback('queryHistory', this, undefined);
+        app.queryState_.queryingDisabled = true;
+        app.set('queryState_.searchTerm', '');
+        return flush();
       });
     });
   }
   return {
     registerTests: registerTests
   };
 });