Method that will be executed when the route creation has finished.
|result| will be CEF_MRCR_OK if the route creation succeeded. |error| will
be a description of the error if the route creation failed. |route| is the
resulting route, or NULL if the route creation failed.
Method that will be executed when the route creation has finished. |result| will be CEF_MRCR_OK if the route creation succeeded. |error| will be a description of the error if the route creation failed. |route| is the resulting route, or NULL if the route creation failed.