HangingReceiveThread 17 base/sync_socket_unittest.cc explicit HangingReceiveThread(base::SyncSocket* socket) HangingReceiveThread 43 base/sync_socket_unittest.cc DISALLOW_COPY_AND_ASSIGN(HangingReceiveThread); HangingReceiveThread 121 base/sync_socket_unittest.cc HangingReceiveThread thread(&socket_b);