Synopsis

                    WebKitDOMXPathExpression;
WebKitDOMXPathResult * webkit_dom_xpath_expression_evaluate
                                                        (WebKitDOMXPathExpression *self,
                                                         WebKitDOMNode *contextNode,
                                                         gushort type,
                                                         WebKitDOMXPathResult *inResult,
                                                         GError **error);