MD Settings: Fix some tests that break when run in Vulcanized mode.

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

Index: chrome/test/data/webui/settings/passwords_and_forms_browsertest.js
diff --git a/chrome/test/data/webui/settings/passwords_and_forms_browsertest.js b/chrome/test/data/webui/settings/passwords_and_forms_browsertest.js
index 09c34408c0594bc3df378e1c840d0d32fb5ba4e1..7609bec6cfc257baa19d466c09c7dc8932c7137d 100644
--- a/chrome/test/data/webui/settings/passwords_and_forms_browsertest.js
+++ b/chrome/test/data/webui/settings/passwords_and_forms_browsertest.js
@@ -231,6 +231,7 @@ PasswordsAndFormsBrowserTest.prototype = {
   /** @override */
   setUp: function() {
     PolymerTest.prototype.setUp.call(this);
+    PolymerTest.clearBody();
 
     // Test is run on an individual element that won't have a page language.
     this.accessibilityAuditConfig.auditRulesToIgnore.push('humanLangMissing');
@@ -244,11 +245,6 @@ PasswordsAndFormsBrowserTest.prototype = {
     AutofillManagerImpl.instance_ = this.autofillManager;
   },
 
-  /** @override */
-  tearDown: function() {
-    PolymerTest.clearBody();
-  },
-
   /**
    * Creates a new passwords and forms element.
    * @return {!Object}