Date and Time dialog for when the clock isn't synced.

chrome/browser/ui/webui/options/chromeos/date_time_options_browsertest.js

+// Copyright 2014 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.
+
+GEN('#if defined(OS_CHROMEOS)');
+
+/**
+ * DateTimeOptionsWebUITest tests the date and time section of the options page.
+ * @constructor
+ * @extends {testing.Test}
+ */
+function DateTimeOptionsWebUITest() {}
+
+DateTimeOptionsWebUITest.prototype = {
+  __proto__: testing.Test.prototype,
+
+  /**
+   * Browse to date/time options.
+   * @override
+   */
+  browsePreload: 'chrome://settings-frame/search#date',
+};
+
+TEST_F('DateTimeOptionsWebUITest', 'testShowSetTimeButton', function() {
+  assertEquals(this.browsePreload, document.location.href);
+
+  // Hide label and show button.
+  BrowserOptions.setCanSetTime(true);
+  expectTrue($('time-synced-explanation').hidden);
+  expectFalse($('set-time').hidden);
+
+  // Show label and hide button.
+  BrowserOptions.setCanSetTime(false);
+  expectFalse($('time-synced-explanation').hidden);
+  expectTrue($('set-time').hidden);
+});
+
+GEN('#endif');