UserChangeActionDisabler  205 chrome/browser/ui/ash/multi_user/multi_user_window_manager_chromeos.cc   DISALLOW_COPY_AND_ASSIGN(UserChangeActionDisabler);
UserChangeActionDisabler  589 chrome/browser/ui/ash/multi_user/multi_user_window_manager_chromeos.cc   scoped_ptr<UserChangeActionDisabler> disabler(new UserChangeActionDisabler);