[MD History] Focus the search bar on load.

chrome/test/data/webui/md_history/md_history_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 Test suite for the Material Design history page.
  */
 
 var ROOT_PATH = '../../../../../';
 
@@ skipping 30 matching lines @@
   ]),
 
   /** @override */
   setUp: function() {
     PolymerTest.prototype.setUp.call(this);
 
     suiteSetup(function() {
       // Wait for the top-level app element to be upgraded.
       return waitForAppUpgrade().then(function() {
         $('history-app').queryState_.queryingDisabled = true;
+
+        // Ensure the search bar is focused on load.
+        assertTrue(
+            $('history-app')
+                .$.toolbar.$['main-toolbar']
+                .getSearchField()
+                .isSearchFocused());
       });
     });
   },
 };
 
 TEST_F('MaterialHistoryBrowserTest', 'BrowserServiceTest', function() {
   md_history.browser_service_test.registerTests();
   mocha.run();
 });
 
@@ skipping 80 matching lines @@
       return waitForAppUpgrade();
     });
   },
 };
 
 TEST_F('MaterialHistoryWithQueryParamTest', 'RoutingTestWithQueryParam',
   function() {
     md_history.history_routing_test_with_query_param.registerTests();
     mocha.run();
 });