MD History: Fix menu promo not hiding when menu button is clicked

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.
 
 suite('history-toolbar', function() {
   var app;
   var element;
   var toolbar;
   var TEST_HISTORY_RESULTS;
 
@@ skipping 83 matching lines @@
     assertFalse(notice.hidden);
     MockInteractions.pressAndReleaseKeyOn(notice, /* esc */ 27, '', 'Escape');
     assertTrue(notice.hidden);
 
     // Hiding the button hides the notice.
     MockInteractions.tap(button);
     toolbar.showSyncNotice = false;
     assertTrue(notice.hidden);
   });
 
+  test('menu promo hides when drawer is opened', function() {
+    app.showMenuPromo_ = true;
+    app.hasDrawer_ = true;
+    Polymer.dom.flush();
+    MockInteractions.tap(toolbar.$['main-toolbar'].$$('#menuButton'));
+    assertFalse(app.showMenuPromo_);
+  });
+
   teardown(function() {
     registerMessageCallback('queryHistory', this, function() {});
   });
 });