AddInClearObserve  481 base/observer_list_unittest.cc   explicit AddInClearObserve(ObserverList<Foo>* list)
AddInClearObserve  502 base/observer_list_unittest.cc   AddInClearObserve a(&observer_list);
AddInClearObserve  514 base/observer_list_unittest.cc   AddInClearObserve a(&observer_list);