const char* aRegistryLocation)
const char* aRegistryLocation, const nsModuleComponentInfo *info)
EventsPluginInstance::UnregisterSelf(nsIComponentManager* aCompMgr,                                     nsIFile* aPath,                                     const char* aRegistryLocation){    nsresult rv;    nsIPluginManager* pm;    rv = nsServiceManager::GetService(kPluginManagerCID, NS_GET_IID(nsIPluginManager),                                      NS_REINTERPRET_CAST(nsISupports**, &pm));    if (NS_SUCCEEDED(rv)) {        rv = pm->UnregisterPlugin(kEventsPluginCID);        NS_RELEASE(pm);    }    return rv;}