MD Settings: Replace paper-item with button under iron-dropdown, part1.

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 16350d901c53571e20113d9b058087d4a790e147..a03eaa3d0f764dfb9e80bdb83e9098c5353cdd83 100644
--- a/chrome/test/data/webui/settings/languages_page_browsertest.js
+++ b/chrome/test/data/webui/settings/languages_page_browsertest.js
@@ -84,7 +84,7 @@ TEST_F('SettingsLanguagesPageBrowserTest', 'MAYBE_LanguagesPage', function() {
     test('language detail', function() {
       var languagesCollapse = languagesPage.$.languagesCollapse;
       var languageDetailMenuItem = languagesCollapse.querySelectorAll(
-          '.dropdown-content .language-detail-item')[0];
+          '.dropdown-content .dropdown-item')[2];
       assertTrue(!!languageDetailMenuItem);
       MockInteractions.tap(languageDetailMenuItem);