type net/http/httputil.switchProtocolCopier

4 uses

	net/http/httputil (current package)
		reverseproxy.go#L878: 	spc := switchProtocolCopier{user: conn, backend: backConn}
		reverseproxy.go#L894: type switchProtocolCopier struct {
		reverseproxy.go#L898: func (c switchProtocolCopier) copyFromBackend(errc chan<- error) {
		reverseproxy.go#L913: func (c switchProtocolCopier) copyToBackend(errc chan<- error) {