ash: Add checks for supervised users.

chrome/browser/ui/ash/system_tray_delegate_chromeos.cc

Index: chrome/browser/ui/ash/system_tray_delegate_chromeos.cc
diff --git a/chrome/browser/ui/ash/system_tray_delegate_chromeos.cc b/chrome/browser/ui/ash/system_tray_delegate_chromeos.cc
index 4445d3ec1b98f5948f2719f78f87a00660c03fc7..8c8a8066102e4098acf27f25fcd2f9da57f4f3f3 100644
--- a/chrome/browser/ui/ash/system_tray_delegate_chromeos.cc
+++ b/chrome/browser/ui/ash/system_tray_delegate_chromeos.cc
@@ -394,13 +394,18 @@ SystemTrayDelegateChromeOS::GetSupervisedUserManagerName() const {
 
 const base::string16 SystemTrayDelegateChromeOS::GetSupervisedUserMessage()
     const {
-  if (GetUserLoginStatus() != ash::user::LOGGED_IN_SUPERVISED)
+  if (!IsUserSupervised())
     return base::string16();
   return l10n_util::GetStringFUTF16(
       IDS_USER_IS_SUPERVISED_BY_NOTICE,
       base::UTF8ToUTF16(GetSupervisedUserManager()));
 }
 
+bool SystemTrayDelegateChromeOS::IsUserSupervised() const {
+  user_manager::User* user = user_manager::UserManager::Get()->GetActiveUser();
+  return user && user->IsSupervised();
+}
+
 bool SystemTrayDelegateChromeOS::SystemShouldUpgrade() const {
   return UpgradeDetector::GetInstance()->notify_upgrade();
 }