diff -r 000000000000 -r 4f2f89ce4247 WebCore/bindings/js/JSNodeCustom.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/bindings/js/JSNodeCustom.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2007, 2009, 2010 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 JSNodeCustom_h
+#define JSNodeCustom_h
+
+#include "JSDOMBinding.h"
+#include <wtf/AlwaysInline.h>
+
+namespace WebCore {
+
+inline JSNode* getCachedDOMNodeWrapper(JSC::ExecState* exec, Document* document, Node* node)
+{
+    if (currentWorld(exec)->isNormal()) {
+        ASSERT(node->wrapper() == (document ? document->getWrapperCache(currentWorld(exec))->get(node) : domObjectWrapperMapFor(exec).get(node)));
+        return static_cast<JSNode*>(node->wrapper());
+    }
+
+    if (document)
+        return document->getWrapperCache(currentWorld(exec))->get(node);
+    return static_cast<JSNode*>(domObjectWrapperMapFor(exec).get(node));
+}
+
+JSC::JSValue createWrapper(JSC::ExecState*, JSDOMGlobalObject*, Node*);
+
+inline JSC::JSValue toJS(JSC::ExecState* exec, JSDOMGlobalObject* globalObject, Node* node)
+{
+    if (!node)
+        return JSC::jsNull();
+
+    JSNode* wrapper = getCachedDOMNodeWrapper(exec, node->document(), node);
+    if (wrapper)
+        return wrapper;
+
+    return createWrapper(exec, globalObject, node);
+}
+
+}
+
+#endif // JSDOMNodeCustom_h