MD Downloads: hide ... (more options) menu on resize

chrome/test/data/webui/md_downloads/toolbar_tests.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('toolbar tests', function() {
+  /** @type {!downloads.Toolbar} */
+  var toolbar;
+
+  setup(function() {
+    toolbar = document.createElement('downloads-toolbar');
+    document.body.appendChild(toolbar);
+  });
+
+  test('resize closes more options menu', function() {
+    MockInteractions.tap(toolbar.$$('paper-icon-button'));
+    assertTrue(toolbar.$.more.opened);
+
+    window.dispatchEvent(new CustomEvent('resize'));
+    assertFalse(toolbar.$.more.opened);
+  });
+});