Revert of MD Settings: Elim SettingsSubpageBrowsertest and SettingsPageVisibility

chrome/test/data/webui/settings/languages_page_browsertest.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.
 
 /** @fileoverview Suite of tests for settings-languages-page. */
 
 /** @const {string} Path to root from chrome/test/data/webui/settings/. */
 var ROOT_PATH = '../../../../../';
 
 // Polymer BrowserTest fixture.
 GEN_INCLUDE(
     [ROOT_PATH + 'chrome/test/data/webui/polymer_browser_test_base.js']);
 // SettingsPageBrowserTest fixture.
 GEN_INCLUDE([ROOT_PATH +
              'chrome/test/data/webui/settings/settings_page_browsertest.js']);
 
 /**
  * Test class for settings-languages-page UI.
  * @constructor
  * @extends {SettingsPageBrowserTest}
  */
 function SettingsLanguagesPageBrowserTest() {}
 
 SettingsLanguagesPageBrowserTest.prototype = {
   __proto__: SettingsPageBrowserTest.prototype,
 
   /** @override */
   preLoad: function() {
     SettingsPageBrowserTest.prototype.preLoad.call(this);
+    settingsHidePagesByDefaultForTest = true;
   },
 };
 
 // Flaky on Windows, Mac and Linux. See https://crbug.com/641400.
 //
 // May time out on debug builders and memory bots because the Settings page can
 // take several seconds to load in a Release build and several times that in a
 // Debug build. See https://crbug.com/558434.
 //
 // Disabling this test in general.
@@ skipping 35 matching lines @@
     }
 
     // Returns supported languages that are not enabled.
     function getAvailableLanguages() {
       return languagesPage.languages.supported.filter(function(language) {
         return !languageHelper.isLanguageEnabled(language.code);
       });
     }
 
     suiteSetup(function() {
-      languagesSection = assert(this.getSection(self.basicPage, 'languages'));
+      var page = self.basicPage;
+      page.set('pageVisibility.languages', true);
+      Polymer.dom.flush();
+
+      languagesSection = assert(this.getSection(page, 'languages'));
       languagesPage = assert(
           languagesSection.querySelector('settings-languages-page'));
       languagesCollapse = languagesPage.$.languagesCollapse;
       languagesCollapse.opened = true;
       actionMenu = languagesPage.$.menu.get();
 
       languageHelper = languagesPage.languageHelper;
       return languageHelper.whenReady();
     }.bind(this));
 
@@ skipping 351 matching lines @@
             0, triggerRow.querySelector('.secondary').textContent.length);
       }
     });
   }.bind(this));
 
   // TODO(michaelpg): Test more aspects of the languages UI.
 
   // Run all registered tests.
   mocha.run();
 });