68   std::promise<void> promise;  in Cancel()  local
69   CancelHelper(std::move(promise));  in Cancel()
74   std::promise<void> promise;  in CancelAndWait()  local
75   auto future = promise.get_future();  in CancelAndWait()
76   CancelHelper(std::move(promise));  in CancelAndWait()
81 void OnceTimer::CancelHelper(std::promise<void> promise) {  in CancelHelper()  argument
85     promise.set_value();  in CancelHelper()
89     CancelClosure(std::move(promise));  in CancelHelper()
94                                 base::Unretained(this), std::move(promise)));  in CancelHelper()
98 void OnceTimer::CancelClosure(std::promise<void> promise) {  in CancelClosure()  argument
103   promise.set_value();  in CancelClosure()