MD Settings: Allow search within settings to track multiple requests separately.

chrome/test/data/webui/settings/basic_page_browsertest.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 Suite of tests for the Settings basic page. */
 
 GEN_INCLUDE(['settings_page_browsertest.js']);
 
 /**
  * @constructor
@@ skipping 38 matching lines @@
     /** @private {?settings.SearchRequest} */
     this.searchRequest_ = null;
   }
 
   TestSearchManager.prototype = {
     __proto__: settings.TestBrowserProxy.prototype,
 
     /** @override */
     search: function(text, page) {
       if (this.searchRequest_ == null || !this.searchRequest_.isSame(text)) {
-        this.searchRequest_ = new settings.SearchRequest(text);
+        this.searchRequest_ = new settings.SearchRequest(
+            text, document.createElement('div'));
         this.searchRequest_.finished = true;
         this.searchRequest_.updateMatches(false);
 
         // The search much be resolved asynchronously just like the real
         // SearchManager. Otherwise, the race condition doesn't manifest.
         setTimeout(function() {
           // All the sections must be hidden by the TestSearchManager, just like
           // the real SearchManager. Otherwise, the bug doesn't manifest.
           var sections =
               Polymer.dom().querySelectorAll('* /deep/ settings-section');
@@ skipping 104 matching lines @@
       assertNotEquals(0, page.scroller.scrollTop);
 
       settings.navigateTo(settings.Route.ABOUT);
       assertEquals(0, page.scroller.scrollTop);
     });
   });
 
   // Run all registered tests.
   mocha.run();
 });