PRInt32 PR_CALLBACK ProxyPrefsCallback(const char* pref, void* instance)
static PRInt32 PR_CALLBACK ProxyPrefsCallback(const char* pref, void* instance)
PRInt32 PR_CALLBACK ProxyPrefsCallback(const char* pref, void* instance){    nsProtocolProxyService* proxyServ = (nsProtocolProxyService*) instance;    NS_ASSERTION(proxyServ, "bad instance data");    if (proxyServ) proxyServ->PrefsChanged(pref);    return 0;}