IP_DROP_MEMBERSHIP  698 net/udp/udp_socket_libevent.cc       int rv = setsockopt(socket_, IPPROTO_IP, IP_DROP_MEMBERSHIP,
IP_DROP_MEMBERSHIP  779 net/udp/udp_socket_win.cc       int rv = setsockopt(socket_, IPPROTO_IP, IP_DROP_MEMBERSHIP,
IP_DROP_MEMBERSHIP  791 net/udp/udp_socket_win.cc       int rv = setsockopt(socket_, IPPROTO_IPV6, IP_DROP_MEMBERSHIP,
IP_DROP_MEMBERSHIP  444 third_party/npapi/npspy/extern/nspr/md/_macos.h #define IP_DROP_MEMBERSHIP IP_DROP_MEMBERSHIP