MD Settings: Migrate from paper-drawer-panel to app-drawer.

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

Index: chrome/test/data/webui/settings/rtl_tests.js
diff --git a/chrome/test/data/webui/settings/rtl_tests.js b/chrome/test/data/webui/settings/rtl_tests.js
index 2153f7afa7b0807cd2638aa36ed27a75df7ecf5e..dfa85621b024967137589a3f522cad9094b9f429 100644
--- a/chrome/test/data/webui/settings/rtl_tests.js
+++ b/chrome/test/data/webui/settings/rtl_tests.js
@@ -13,13 +13,14 @@ cr.define('settings_rtl_tests', function() {
     suite('settings drawer panel RTL tests', function() {
       test('test i18n processing flips drawer panel', function() {
         var ui = document.createElement('settings-ui');
-        assertFalse(ui.$.panel.rightDrawer);
+        var appDrawer = ui.$$('app-drawer');
+        assertEquals('left', appDrawer.align);
 
         ui.directionDelegate = new TestDirectionDelegate(true /* isRtl */);
-        assertTrue(ui.$.panel.rightDrawer);
+        assertEquals('right', appDrawer.align);
 
         ui.directionDelegate = new TestDirectionDelegate(false /* isRtl */);
-        assertFalse(ui.$.panel.rightDrawer);
+        assertEquals('left', appDrawer.align);
       });
     });
   }