Revert of 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 201ac8f190e4c16a5f867018f5964e4e5116beb3..1696b14f8ffc87853098d42969eea291e7ecdad9 100644
--- a/chrome/browser/ui/ash/system_tray_delegate_chromeos.cc
+++ b/chrome/browser/ui/ash/system_tray_delegate_chromeos.cc
@@ -394,16 +394,11 @@
 
 const base::string16 SystemTrayDelegateChromeOS::GetSupervisedUserMessage()
     const {
-  if (!IsUserSupervised())
+  if (GetUserLoginStatus() != ash::user::LOGGED_IN_SUPERVISED)
     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 {