Method Cancel

library/cpp/neh/http2.cpp:597–604

        }

        void Cancel() { //throw std::bad_alloc
            if (!Canceled_) {
                Canceled_ = true;
                Finalized_ = true;
                OnCancel();
                AS_.AsyncCancel();
            }
        }

        void OnCancel() {
            THttpRequestRef r(ReleaseRequest());