MD User Manager: latest design change, css refactoring, accessiblity, and bug fixes

chrome/test/data/webui/md_user_manager/create_profile_tests.js

Index: chrome/test/data/webui/md_user_manager/create_profile_tests.js
diff --git a/chrome/test/data/webui/md_user_manager/create_profile_tests.js b/chrome/test/data/webui/md_user_manager/create_profile_tests.js
index cd5ad3d52e4233c7d135854168e7b788dfa34d5a..f084bef3ab70417edcc651f4372cc79106c1b099 100644
--- a/chrome/test/data/webui/md_user_manager/create_profile_tests.js
+++ b/chrome/test/data/webui/md_user_manager/create_profile_tests.js
@@ -58,7 +58,7 @@ cr.define('user_manager.create_profile_tests', function() {
           // The 'learn more' link is visible.
           assertTrue(!!createProfileElement.$$('#learn-more'));
 
-          // The dropdown menu is visible only when the checkbox is checked.
+          // The dropdown menu becomes visible when the checkbox is checked.
           assertFalse(!!createProfileElement.$$('paper-dropdown-menu'));
 
           // Simulate checking the checkbox.
@@ -378,9 +378,16 @@ cr.define('user_manager.create_profile_tests', function() {
         return browserProxy.whenCalled('getSignedInUsers').then(function() {
           assertEquals(0, createProfileElement.signedInUsers_.length);
 
-          // '#supervised-user-container' is not present in the DOM.
-          var container = createProfileElement.$$('#supervised-user-container');
-          assertFalse(!!container);
+          // Simulate checking the checkbox.
+          MockInteractions.tap(createProfileElement.$$('paper-checkbox'));
+          Polymer.dom.flush();
+
+          // The dropdown menu is not visible when there are no signed in users.
+          assertFalse(!!createProfileElement.$$('paper-dropdown-menu'));
+
+          // Instead a message containing a link to the Help Center on how
+          // to sign in to Chrome is displaying.
+          assertTrue(!!createProfileElement.$$('#sign-in-to-chrome'));
         });
       });