Added login screen mode for adding users into session.

chrome/browser/chromeos/login/user_manager_impl.cc

Index: chrome/browser/chromeos/login/user_manager_impl.cc
diff --git a/chrome/browser/chromeos/login/user_manager_impl.cc b/chrome/browser/chromeos/login/user_manager_impl.cc
index 32ff174cf8ff3c2bc54c91c04c9d1bec41e4511a..5b4337220a568260666895b05caf90abf1b5904f 100644
--- a/chrome/browser/chromeos/login/user_manager_impl.cc
+++ b/chrome/browser/chromeos/login/user_manager_impl.cc
@@ -242,6 +242,16 @@ const UserList& UserManagerImpl::GetUsers() const {
   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_;
 }