Hi all,

I just upgraded to `6.0` and `TypeError: Insufficient number of arguments.`
shell/browser/api/atom_api_app.cc
scoped_refptr<net::X509Certificate> cert,
                   scoped_refptr<net::SSLPrivateKey> private_key) {
  delegate->ContinueWithCertificate(cert, private_key);
}
void OnClientCertificateSelected(
    v8::Isolate* isolate,
    std::shared_ptr<content::ClientCertificateDelegate> delegate,
    std::shared_ptr<net::ClientCertIdentityList> identities,
    mate::Arguments* args) {
  if (args->Length() == 2) {
    delegate->ContinueWithCertificate(nullptr, nullptr);
    return;
  }
  v8::Local<v8::Value> val;
  args->GetNext(&val);
  if (val->IsNull()) {
    delegate->ContinueWithCertificate(nullptr, nullptr);
    return;
  }
  mate::Dictionary cert_data;
  if (!mate::ConvertFromV8(isolate, val, &cert_data)) {