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diff --git a/Source/WebCore/bindings/js/JSDOMGlobalObject.h b/Source/WebCore/bindings/js/JSDOMGlobalObject.h
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+/*
+ * Copyright (C) 2008 Apple Inc. All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+ * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
+ *
+ */
+
+#ifndef JSDOMGlobalObject_h
+#define JSDOMGlobalObject_h
+
+#include <runtime/JSGlobalObject.h>
+
+namespace WebCore {
+
+    class Document;
+    class Event;
+    class DOMWrapperWorld;
+    class JSLazyEventListener;
+    class JSEventListener;
+    class ScriptExecutionContext;
+
+    typedef HashMap<const JSC::ClassInfo*, RefPtr<JSC::Structure> > JSDOMStructureMap;
+    typedef HashMap<const JSC::ClassInfo*, JSC::JSObject*> JSDOMConstructorMap;
+
+    class JSDOMGlobalObject : public JSC::JSGlobalObject {
+        typedef JSC::JSGlobalObject Base;
+    protected:
+        struct JSDOMGlobalObjectData;
+
+        JSDOMGlobalObject(NonNullPassRefPtr<JSC::Structure>, JSDOMGlobalObjectData*, JSC::JSObject* thisValue);
+
+    public:
+        JSDOMStructureMap& structures() { return d()->structures; }
+        JSDOMConstructorMap& constructors() const { return d()->constructors; }
+
+        virtual ScriptExecutionContext* scriptExecutionContext() const = 0;
+
+        // Make binding code generation easier.
+        JSDOMGlobalObject* globalObject() { return this; }
+
+        void setCurrentEvent(Event*);
+        Event* currentEvent() const;
+
+        void setInjectedScript(JSObject*);
+        JSObject* injectedScript() const;
+
+        virtual void markChildren(JSC::MarkStack&);
+
+        DOMWrapperWorld* world() { return d()->m_world.get(); }
+
+        virtual const JSC::ClassInfo* classInfo() const { return &s_info; }
+        static const JSC::ClassInfo s_info;
+
+    protected:
+        struct JSDOMGlobalObjectData : public JSC::JSGlobalObject::JSGlobalObjectData {
+            JSDOMGlobalObjectData(DOMWrapperWorld* world, Destructor destructor = destroyJSDOMGlobalObjectData)
+                : JSGlobalObjectData(destructor)
+                , evt(0)
+                , m_world(world)
+                , m_injectedScript(0)
+            {
+            }
+
+            JSDOMStructureMap structures;
+            JSDOMConstructorMap constructors;
+
+            Event* evt;
+            RefPtr<DOMWrapperWorld> m_world;
+            JSObject* m_injectedScript;
+        };
+
+    private:
+        static void destroyJSDOMGlobalObjectData(void*);
+
+        JSDOMGlobalObjectData* d() const { return static_cast<JSDOMGlobalObjectData*>(JSC::JSVariableObject::d); }
+    };
+
+    template<class ConstructorClass>
+    inline JSC::JSObject* getDOMConstructor(JSC::ExecState* exec, const JSDOMGlobalObject* globalObject)
+    {
+        if (JSC::JSObject* constructor = globalObject->constructors().get(&ConstructorClass::s_info))
+            return constructor;
+        JSC::JSObject* constructor = new (exec) ConstructorClass(exec, const_cast<JSDOMGlobalObject*>(globalObject));
+        ASSERT(!globalObject->constructors().contains(&ConstructorClass::s_info));
+        globalObject->constructors().set(&ConstructorClass::s_info, constructor);
+        return constructor;
+    }
+
+    JSDOMGlobalObject* toJSDOMGlobalObject(Document*, JSC::ExecState*);
+    JSDOMGlobalObject* toJSDOMGlobalObject(ScriptExecutionContext*, JSC::ExecState*);
+
+    JSDOMGlobalObject* toJSDOMGlobalObject(Document*, DOMWrapperWorld*);
+    JSDOMGlobalObject* toJSDOMGlobalObject(ScriptExecutionContext*, DOMWrapperWorld*);
+
+} // namespace WebCore
+
+#endif // JSDOMGlobalObject_h