3 files changed, 3 insertions, 3 deletions
diff --git a/Source/JavaScriptCore/API/JSCallbackObject.h b/Source/JavaScriptCore/API/JSCallbackObject.h
index 8d7aedd3e..5022aaf40 100644
--- a/Source/JavaScriptCore/API/JSCallbackObject.h
+++ b/Source/JavaScriptCore/API/JSCallbackObject.h
@@ -186,7 +186,7 @@ private:
     static bool deleteProperty(JSCell*, ExecState*, PropertyName);
     static bool deletePropertyByIndex(JSCell*, ExecState*, unsigned);
 
-    static bool hasInstance(JSObject*, ExecState*, JSValue, JSValue proto);
+    static bool customHasInstance(JSObject*, ExecState*, JSValue);
 
     static void getOwnNonIndexPropertyNames(JSObject*, ExecState*, PropertyNameArray&, EnumerationMode);
 
diff --git a/Source/JavaScriptCore/API/JSCallbackObjectFunctions.h b/Source/JavaScriptCore/API/JSCallbackObjectFunctions.h
index 39d078239..688e7b8b9 100644
--- a/Source/JavaScriptCore/API/JSCallbackObjectFunctions.h
+++ b/Source/JavaScriptCore/API/JSCallbackObjectFunctions.h
@@ -389,7 +389,7 @@ EncodedJSValue JSCallbackObject<Parent>::construct(ExecState* exec)
 }
 
 template <class Parent>
-bool JSCallbackObject<Parent>::hasInstance(JSObject* object, ExecState* exec, JSValue value, JSValue)
+bool JSCallbackObject<Parent>::customHasInstance(JSObject* object, ExecState* exec, JSValue value)
 {
     JSCallbackObject* thisObject = jsCast<JSCallbackObject*>(object);
     JSContextRef execRef = toRef(exec);
diff --git a/Source/JavaScriptCore/API/JSValueRef.cpp b/Source/JavaScriptCore/API/JSValueRef.cpp
index 4c986c253..bb92454bd 100644
--- a/Source/JavaScriptCore/API/JSValueRef.cpp
+++ b/Source/JavaScriptCore/API/JSValueRef.cpp
@@ -175,7 +175,7 @@ bool JSValueIsInstanceOfConstructor(JSContextRef ctx, JSValueRef value, JSObject
     JSObject* jsConstructor = toJS(constructor);
     if (!jsConstructor->structure()->typeInfo().implementsHasInstance())
         return false;
-    bool result = jsConstructor->methodTable()->hasInstance(jsConstructor, exec, jsValue, jsConstructor->get(exec, exec->propertyNames().prototype)); // false if an exception is thrown
+    bool result = jsConstructor->hasInstance(exec, jsValue); // false if an exception is thrown
     if (exec->hadException()) {
         if (exception)
             *exception = toRef(exec, exec->exception());