diff -r 000000000000 -r 1918ee327afb src/3rdparty/webkit/JavaScriptCore/runtime/NativeErrorConstructor.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/3rdparty/webkit/JavaScriptCore/runtime/NativeErrorConstructor.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,73 @@
+/*
+ *  Copyright (C) 1999-2000 Harri Porten (porten@kde.org)
+ *  Copyright (C) 2003, 2008 Apple Inc. All rights reserved.
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2 of the License, or (at your option) any later version.
+ *
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#include "config.h"
+#include "NativeErrorConstructor.h"
+
+#include "ErrorInstance.h"
+#include "JSFunction.h"
+#include "JSString.h"
+#include "NativeErrorPrototype.h"
+
+namespace JSC {
+
+ASSERT_CLASS_FITS_IN_CELL(NativeErrorConstructor);
+
+const ClassInfo NativeErrorConstructor::info = { "Function", &InternalFunction::info, 0, 0 };
+
+NativeErrorConstructor::NativeErrorConstructor(ExecState* exec, NonNullPassRefPtr<Structure> structure, NativeErrorPrototype* nativeErrorPrototype)
+    : InternalFunction(&exec->globalData(), structure, Identifier(exec, nativeErrorPrototype->getDirect(exec->propertyNames().name).getString()))
+    , m_errorStructure(ErrorInstance::createStructure(nativeErrorPrototype))
+{
+    putDirect(exec->propertyNames().length, jsNumber(exec, 1), DontDelete | ReadOnly | DontEnum); // ECMA 15.11.7.5
+    putDirect(exec->propertyNames().prototype, nativeErrorPrototype, DontDelete | ReadOnly | DontEnum);
+}
+
+ErrorInstance* NativeErrorConstructor::construct(ExecState* exec, const ArgList& args)
+{
+    ErrorInstance* object = new (exec) ErrorInstance(m_errorStructure);
+    if (!args.at(0).isUndefined())
+        object->putDirect(exec->propertyNames().message, jsString(exec, args.at(0).toString(exec)));
+    return object;
+}
+
+static JSObject* constructWithNativeErrorConstructor(ExecState* exec, JSObject* constructor, const ArgList& args)
+{
+    return static_cast<NativeErrorConstructor*>(constructor)->construct(exec, args);
+}
+
+ConstructType NativeErrorConstructor::getConstructData(ConstructData& constructData)
+{
+    constructData.native.function = constructWithNativeErrorConstructor;
+    return ConstructTypeHost;
+}
+    
+static JSValue JSC_HOST_CALL callNativeErrorConstructor(ExecState* exec, JSObject* constructor, JSValue, const ArgList& args)
+{
+    return static_cast<NativeErrorConstructor*>(constructor)->construct(exec, args);
+}
+
+CallType NativeErrorConstructor::getCallData(CallData& callData)
+{
+    callData.native.function = callNativeErrorConstructor;
+    return CallTypeHost;
+}
+
+} // namespace JSC