1 files changed, 18 insertions, 24 deletions
diff --git a/Source/WebCore/xml/XPathExpression.h b/Source/WebCore/xml/XPathExpression.h
index 8fd2a3eed..5a478a82e 100644
--- a/Source/WebCore/xml/XPathExpression.h
+++ b/Source/WebCore/xml/XPathExpression.h
@@ -24,37 +24,31 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef XPathExpression_h
-#define XPathExpression_h
+#pragma once
 
-#include <wtf/Forward.h>
-#include <wtf/RefCounted.h>
+#include "ExceptionOr.h"
 
 namespace WebCore {
 
-    typedef int ExceptionCode;
+class Node;
+class XPathNSResolver;
+class XPathResult;
 
-    class Node;
-    class XPathNSResolver;
-    class XPathResult;
+namespace XPath {
+class Expression;
+}
 
-    namespace XPath {
-        class Expression;
-    }
+class XPathExpression : public RefCounted<XPathExpression> {
+public:
+    static ExceptionOr<Ref<XPathExpression>> createExpression(const String& expression, RefPtr<XPathNSResolver>&&);
+    WEBCORE_EXPORT ~XPathExpression();
 
-    class XPathExpression : public RefCounted<XPathExpression> {
-    public:
-        static PassRefPtr<XPathExpression> createExpression(const String& expression, XPathNSResolver*, ExceptionCode&);
-        ~XPathExpression();
-        
-        PassRefPtr<XPathResult> evaluate(Node* contextNode, unsigned short type, XPathResult*, ExceptionCode&);
-            
-    private:
-        explicit XPathExpression(std::unique_ptr<XPath::Expression>);
+    WEBCORE_EXPORT ExceptionOr<Ref<XPathResult>> evaluate(Node* contextNode, unsigned short type, XPathResult*);
 
-        std::unique_ptr<XPath::Expression> m_topExpression;
-    };
+private:
+    explicit XPathExpression(std::unique_ptr<XPath::Expression>);
 
-}
+    std::unique_ptr<XPath::Expression> m_topExpression;
+};
 
-#endif // XPathExpression_h
+}