MD History: add shortcuts for search

chrome/test/data/webui/md_history/history_toolbar_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_toolbar_test', function() {
   function registerTests() {
     suite('history-toolbar', function() {
       var app;
       var element;
       var toolbar;
@@ skipping 34 matching lines @@
       test('search term gathered correctly from toolbar', function(done) {
         app.queryState_.queryingDisabled = false;
         registerMessageCallback('queryHistory', this, function (info) {
           assertEquals(info[0], 'Test');
           done();
         });
 
         toolbar.$$('cr-toolbar').fire('search-changed', 'Test');
       });
 
+      test('shortcuts to open search field', function() {
+        var field = toolbar.$['main-toolbar'].getSearchField();
+        assertFalse(field.showingSearch);
+
+        MockInteractions.pressAndReleaseKeyOn(
+            document.body, 191, '', '/');
+        assertTrue(field.showingSearch);
+        assertEquals(field.$.searchInput, field.root.activeElement);
+
+        MockInteractions.pressAndReleaseKeyOn(
+            field.$.searchInput, 27, '', 'Escape');
+        assertFalse(field.showingSearch, 'Pressing escape closes field.');
+        assertNotEquals(field.$.searchInput, field.root.activeElement);
+
+        MockInteractions.pressAndReleaseKeyOn(
+            document.body, 70, 'ctrl', 'f');
+        assertTrue(field.showingSearch);
+        assertEquals(field.$.searchInput, field.root.activeElement);
+     });
+
       teardown(function() {
         element.historyData_ = [];
         element.searchedTerm = '';
         registerMessageCallback('queryHistory', this, undefined);
         toolbar.count = 0;
       });
     });
   }
   return {
     registerTests: registerTests
   };
 });