diff -r 000000000000 -r 4f2f89ce4247 WebCore/bindings/js/ScriptValue.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/bindings/js/ScriptValue.h	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2008, Google 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:
+ * 
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * 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.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "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 THE COPYRIGHT
+ * OWNER 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 ScriptValue_h
+#define ScriptValue_h
+
+#include "JSDOMBinding.h"
+#include "PlatformString.h"
+#include "ScriptState.h"
+#include <runtime/JSValue.h>
+#include <runtime/Protect.h>
+#include <wtf/PassRefPtr.h>
+
+namespace WebCore {
+
+class SerializedScriptValue;
+
+class ScriptValue {
+public:
+    ScriptValue(JSC::JSValue value = JSC::JSValue()) : m_value(value) {}
+    virtual ~ScriptValue() {}
+
+    JSC::JSValue jsValue() const { return m_value.get(); }
+    bool getString(ScriptState*, String& result) const;
+    String toString(ScriptState* scriptState) const { return ustringToString(m_value.get().toString(scriptState)); }
+    bool isEqual(ScriptState*, const ScriptValue&) const;
+    bool isNull() const;
+    bool isUndefined() const;
+    bool isObject() const;
+    bool hasNoValue() const { return m_value == JSC::JSValue(); }
+
+    PassRefPtr<SerializedScriptValue> serialize(ScriptState*);
+    static ScriptValue deserialize(ScriptState*, SerializedScriptValue*);
+
+    static ScriptValue undefined() { return ScriptValue(JSC::jsUndefined()); }
+
+private:
+    JSC::ProtectedJSValue m_value;
+};
+
+} // namespace WebCore
+
+#endif // ScriptValue_h