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 b82a92c992a559db6f825227f2bebac0fa01caf8..a2263e9f4bef88ed2e7409358547286ce0b523a2 100644
--- a/chrome/browser/chromeos/login/user_manager_impl.cc
+++ b/chrome/browser/chromeos/login/user_manager_impl.cc
@@ -240,6 +240,16 @@ 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_;
 }