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

chrome/browser/chromeos/login/users/chrome_user_manager.cc

 // Copyright 2014 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/chromeos/login/users/chrome_user_manager.h"
 #include "components/user_manager/user_manager.h"
 
 namespace chromeos {
 
 ChromeUserManager::ChromeUserManager(
     scoped_refptr<base::TaskRunner> task_runner,
     scoped_refptr<base::TaskRunner> blocking_task_runner)
     : UserManagerBase(task_runner, blocking_task_runner) {
 }
 
 ChromeUserManager::~ChromeUserManager() {
 }
 
 // static
 ChromeUserManager* ChromeUserManager::Get() {
   user_manager::UserManager* user_manager = user_manager::UserManager::Get();
   return user_manager ? static_cast<ChromeUserManager*>(user_manager) : NULL;
 }
 
+// static
+user_manager::UserList
+ChromeUserManager::GetUsersAllowedAsSupervisedUserManagers(
+    const user_manager::UserList& user_list) {
+  user_manager::UserList result;
+  for (user_manager::User* user : user_list) {
+    if (user->GetType() == user_manager::USER_TYPE_REGULAR) {
+      result.push_back(user);
+    }
+  }
+  return result;
+}
+
 }  // namespace chromeos