Reland "Add tests for accessibility pages in Chrome / Chrome OS settings.""

This reverts commit cc52503a.

Relands two tests, ACCESSIBILITY and TTS_SUBPAGE. Does not include
the flaky test, which I will try to re-add separately with
adjustments to make it not flake any more.

TBR=hcarmona@chromium.org,zmin@chromium.org

Bug: 823359
Change-Id: If81e79fb8ea9a4870eb3886198c41ca166e38fda
Reviewed-on: https://chromium-review.googlesource.com/996016Reviewed-by: Katie Dektar <katie@chromium.org>
Reviewed-by: Hector Carmona <hcarmona@chromium.org>
Commit-Queue: Katie Dektar <katie@chromium.org>
Cr-Commit-Position: refs/heads/master@{#548164}

chrome/test/data/webui/BUILD.gn

@@ -81,12 +81,14 @@ js2gtest("browser_tests_js_webui") {
     "polymer_browser_test_base.js",
     "sandboxstatus_browsertest.js",
     "settings/a11y/about_a11y_test.js",
+    "settings/a11y/accessibility_a11y_test.js",
     "settings/a11y/basic_a11y_test.js",
     "settings/a11y/edit_dictionary_a11y_test.js",
     "settings/a11y/manage_profile_a11y_test.js",
     "settings/a11y/passwords_a11y_test.js",
     "settings/a11y/settings_accessibility_test.js",
     "settings/a11y/sign_out_a11y_test.js",
+    "settings/a11y/tts_subpage_a11y_test.js",
     "settings/advanced_page_browsertest.js",
     "settings/animation_browsertest.js",
     "settings/basic_page_browsertest.js",

chrome/test/data/webui/settings/a11y/accessibility_a11y_test.js

+// Copyright 2017 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 Define accessibility tests for the ACCESSIBILITY route.
+ */
+
+// SettingsAccessibilityTest fixture.
+GEN_INCLUDE([
+  'settings_accessibility_test.js',
+]);
+
+AccessibilityTest.define('SettingsAccessibilityTest', {
+  /** @override */
+  name: 'ACCESSIBILITY',
+  /** @override */
+  axeOptions: SettingsAccessibilityTest.axeOptions,
+  /** @override */
+  setup: function() {
+    settings.router.navigateTo(settings.routes.ACCESSIBILITY);
+    Polymer.dom.flush();
+  },
+  /** @override */
+  tests: {'Accessible with No Changes': function() {}},
+  /** @override */
+  violationFilter: SettingsAccessibilityTest.violationFilter,
+});

chrome/test/data/webui/settings/a11y/sign_out_a11y_test.js

@@ -78,4 +78,4 @@ AccessibilityTest.define('SettingsA11ySignOut', {
   violationFilter: SettingsAccessibilityTest.violationFilter,
 });
 
-GEN('#endif  // defined(OS_CHROMEOS)');
+GEN('#endif  // !defined(OS_CHROMEOS)');

chrome/test/data/webui/settings/a11y/tts_subpage_a11y_test.js

+// Copyright 2017 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 Define accessibility tests for the MANAGE_TTS_SETINGS route.
+ */
+
+// This is only for Chrome OS.
+GEN('#if defined(OS_CHROMEOS)');
+
+// SettingsAccessibilityTest fixture.
+GEN_INCLUDE([
+  'settings_accessibility_test.js',
+]);
+
+TtsAccessibilityTest = class extends SettingsAccessibilityTest {
+  /** @override */
+  get commandLineSwitches() {
+    return ['enable-experimental-a11y-features'];
+  }
+};
+
+AccessibilityTest.define('TtsAccessibilityTest', {
+  /** @override */
+  name: 'MANAGE_TTS_SETTINGS',
+  /** @override */
+  axeOptions: SettingsAccessibilityTest.axeOptions,
+  /** @override */
+  setup: function() {
+    settings.router.navigateTo(settings.routes.MANAGE_TTS_SETTINGS);
+    Polymer.dom.flush();
+  },
+  /** @override */
+  tests: {'Accessible with No Changes': function() {}},
+  /** @override */
+  violationFilter: SettingsAccessibilityTest.violationFilter,
+});
+
+GEN('#endif  // defined(OS_CHROMEOS)');