MD Settings: Lazy load the contents of the "advanced" settings.

chrome/test/data/webui/settings/languages_page_browsertest.js

Index: chrome/test/data/webui/settings/languages_page_browsertest.js
diff --git a/chrome/test/data/webui/settings/languages_page_browsertest.js b/chrome/test/data/webui/settings/languages_page_browsertest.js
index 8869a965fe05e78811c96ad370dc73497f3cda30..ea269e62f798e378c3761327ed661a1c380913bb 100644
--- a/chrome/test/data/webui/settings/languages_page_browsertest.js
+++ b/chrome/test/data/webui/settings/languages_page_browsertest.js
@@ -43,12 +43,15 @@ GEN('#endif');
 
 // Runs languages page tests.
 TEST_F('SettingsLanguagesPageBrowserTest', 'MAYBE_LanguagesPage', function() {
+  var self = this;
+
+  suiteSetup(function() {
+    self.toggleAdvanced();
+  });
+
   suite('languages page', function() {
     testing.Test.disableAnimationsAndTransitions();
 
-    this.toggleAdvanced();
-    var page = this.getPage('basic');
-
     var languagesSection;
     var languagesPage;
     var languagesCollapse;
@@ -81,6 +84,7 @@ TEST_F('SettingsLanguagesPageBrowserTest', 'MAYBE_LanguagesPage', function() {
     }
 
     suiteSetup(function() {
+      var page = self.basicPage;
       page.set('pageVisibility.languages', true);
       Polymer.dom.flush();