    # File lib/phusion_passenger/classic_rails/request_handler.rb, line 47
            def process_request(headers, input, output, status_line_desired)
                    # FIXME: how to print status line?
                    headers[CONTENT_LENGTH] = headers[HTTP_CONTENT_LENGTH]
                    cgi = CGIFixed.new(headers, input, output)
                    ::Dispatcher.dispatch(cgi,
                            ::ActionController::CgiRequest::DEFAULT_SESSION_OPTIONS,
                            cgi.stdoutput)
            end