void
Browser::on_service_changed(DNSServiceRef /*sdRef*/, DNSServiceFlags flags,
        uint32_t interface_index, DNSServiceErrorType errorCode,
        const char * serviceName, const char * regtype,
        const char * replyDomain, void * context)
{
    Browser * browser = static_cast<Browser*>(context);
    browser->on_service_changed(flags, interface_index, errorCode,
            serviceName, regtype, replyDomain);
}