Creating supervised users restricted for regular users if they are supervised.

chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/prefs/pref_service.h"
@@ skipping 57 matching lines @@
   bool supervised_users_can_create = true;
   int message_id = -1;
   if (!has_users) {
     supervised_users_can_create = false;
     message_id = IDS_CREATE_SUPERVISED_USER_NO_MANAGER_TEXT;
   }
   if (!allow_new_user || !supervised_users_allowed) {
     supervised_users_can_create = false;
     message_id = IDS_CREATE_SUPERVISED_USER_CREATION_RESTRICTED_TEXT;
   }
+  if (supervised_users_can_create &&
+      user_manager::UserManager::Get()
+          ->GetUsersAllowedForSupervisedUsersCreation()
+          .empty()) {
+    supervised_users_can_create = false;
+    message_id = IDS_CREATE_SUPERVISED_USER_NO_MANAGER_EXCEPT_SUPERVISED_TEXT;
+  }
 
   params->SetBoolean("supervisedUsersEnabled", supervised_users_allowed);
   params->SetBoolean("supervisedUsersCanCreate", supervised_users_can_create);
   if (!supervised_users_can_create) {
     params->SetString("supervisedUsersRestrictionReason",
                       l10n_util::GetStringUTF16(message_id));
   }
 
   // Now check whether we're in multi-profiles user adding scenario and
   // disable GAIA right panel features if that's the case.
@@ skipping 641 matching lines @@
 
 SigninScreenHandlerDelegate* GaiaScreenHandler::Delegate() {
   DCHECK(signin_screen_handler_);
   return signin_screen_handler_->delegate_;
 }
 
 void GaiaScreenHandler::SetSigninScreenHandler(SigninScreenHandler* handler) {
   signin_screen_handler_ = handler;
 }
 }  // namespace chromeos