1 files changed, 7 insertions, 10 deletions
diff --git a/Source/WebCore/bindings/js/JSErrorHandler.h b/Source/WebCore/bindings/js/JSErrorHandler.h
index 55d2d53e0..ba01c0e0b 100644
--- a/Source/WebCore/bindings/js/JSErrorHandler.h
+++ b/Source/WebCore/bindings/js/JSErrorHandler.h
@@ -28,37 +28,34 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef JSErrorHandler_h
-#define JSErrorHandler_h
+#pragma once
 
 #include "JSEventListener.h"
 
 namespace WebCore {
 
-class JSErrorHandler : public JSEventListener {
+class JSErrorHandler final : public JSEventListener {
 public:
-    static PassRefPtr<JSErrorHandler> create(JSC::JSObject* listener, JSC::JSObject* wrapper, bool isAttribute, DOMWrapperWorld& world)
+    static Ref<JSErrorHandler> create(JSC::JSObject* listener, JSC::JSObject* wrapper, bool isAttribute, DOMWrapperWorld& world)
     {
-        return adoptRef(new JSErrorHandler(listener, wrapper, isAttribute, world));
+        return adoptRef(*new JSErrorHandler(listener, wrapper, isAttribute, world));
     }
 
     virtual ~JSErrorHandler();
 
 private:
     JSErrorHandler(JSC::JSObject* function, JSC::JSObject* wrapper, bool isAttribute, DOMWrapperWorld&);
-    virtual void handleEvent(ScriptExecutionContext*, Event*);
+    void handleEvent(ScriptExecutionContext*, Event*) final;
 };
 
 // Creates a JS EventListener for "onerror" event handler in worker context. It has custom implementation because
 // unlike other event listeners it accepts three parameters.
-inline PassRefPtr<JSErrorHandler> createJSErrorHandler(JSC::ExecState* exec, JSC::JSValue listener, JSC::JSObject* wrapper)
+inline RefPtr<JSErrorHandler> createJSErrorHandler(JSC::ExecState* exec, JSC::JSValue listener, JSC::JSObject* wrapper)
 {
     if (!listener.isObject())
-        return 0;
+        return nullptr;
 
     return JSErrorHandler::create(asObject(listener), wrapper, true, currentWorld(exec));
 }
 
 } // namespace WebCore
-
-#endif // JSErrorHandler_h