Added login screen mode for adding users into session.

chrome/browser/chromeos/login/user_manager_impl.cc

 // Copyright (c) 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/chromeos/login/user_manager_impl.h"
 
 #include <cstddef>
 #include <set>
 
 #include "ash/shell.h"
@@ skipping 222 matching lines @@
 
 UserImageManager* UserManagerImpl::GetUserImageManager() {
   return user_image_manager_.get();
 }
 
 const UserList& UserManagerImpl::GetUsers() const {
   const_cast<UserManagerImpl*>(this)->EnsureUsersLoaded();
   return users_;
 }
 
+UserList UserManagerImpl::GetUsersAdmittedForMultiProfile() const {
+  UserList result;
+  const UserList& users = GetUsers();
+  for (UserList::const_iterator it = users.begin(); it != users.end(); ++it) {
+    if ((*it)->GetType() == User::USER_TYPE_REGULAR && !(*it)->is_logged_in())
+      result.push_back(*it);
+  }
+  return result;
+}
+
 const UserList& UserManagerImpl::GetLoggedInUsers() const {
   return logged_in_users_;
 }
 
 const UserList& UserManagerImpl::GetLRULoggedInUsers() {
   // If there is no user logged in, we return the active user as the only one.
   if (lru_logged_in_users_.empty() && active_user_) {
     temp_single_logged_in_users_.clear();
     temp_single_logged_in_users_.insert(temp_single_logged_in_users_.begin(),
                                         active_user_);
@@ skipping 1295 matching lines @@
   // TODO(nkostylev): Restore all user sessions (in the background).
   // This requires first refactoring this flow out of LoginUtils.
   // 1. UserManager::UserLoggedIn()
   // 2. InitSessionRestoreStrategy() (OAuth)
   // 2. ProfileManager::CreateDefaultProfileAsync()
   // 3. InitProfilePreferences
   // 4. chrome::NOTIFICATION_LOGIN_USER_PROFILE_PREPARED
 }
 
 }  // namespace chromeos