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diff --git a/Source/WebKit2/Shared/Plugins/NPObjectProxy.h b/Source/WebKit2/Shared/Plugins/NPObjectProxy.h
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+/*
+ * Copyright (C) 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 INC. AND ITS 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 APPLE INC. OR ITS 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 NPObjectProxy_h
+#define NPObjectProxy_h
+
+#if ENABLE(PLUGIN_PROCESS)
+
+#include <WebCore/npruntime.h>
+#include <wtf/Noncopyable.h>
+
+namespace WebKit {
+
+class NPRemoteObjectMap;
+
+class NPObjectProxy : public NPObject {
+    WTF_MAKE_NONCOPYABLE(NPObjectProxy);
+
+public:
+    static NPObjectProxy* create(NPRemoteObjectMap* npRemoteObjectMap, uint64_t npObjectID);
+
+    static bool isNPObjectProxy(NPObject*);
+    
+    static NPObjectProxy* toNPObjectProxy(NPObject* npObject)
+    {
+        ASSERT(isNPObjectProxy(npObject));
+        return static_cast<NPObjectProxy*>(npObject);
+    }
+
+    uint64_t npObjectID() const { return m_npObjectID; }
+
+    void invalidate();
+
+private:
+    NPObjectProxy();
+    ~NPObjectProxy();
+
+    void initialize(NPRemoteObjectMap* npRemoteObjectMap, uint64_t npObjectID);
+
+    bool hasMethod(NPIdentifier methodName);
+    bool invoke(NPIdentifier methodName, const NPVariant* arguments, uint32_t argumentCount, NPVariant* result);
+    bool invokeDefault(const NPVariant* arguments, uint32_t argumentCount, NPVariant* result);
+    bool hasProperty(NPIdentifier propertyName);
+    bool getProperty(NPIdentifier propertyName, NPVariant* result);
+    bool setProperty(NPIdentifier propertyName, const NPVariant* value);
+    bool removeProperty(NPIdentifier propertyName);
+    bool enumerate(NPIdentifier** identifiers, uint32_t* identifierCount);
+    bool construct(const NPVariant* arguments, uint32_t argumentCount, NPVariant* result);
+
+    static NPClass* npClass();
+    static NPObject* NP_Allocate(NPP, NPClass*);
+    static void NP_Deallocate(NPObject*);
+    static bool NP_HasMethod(NPObject*, NPIdentifier methodName);
+    static bool NP_Invoke(NPObject*, NPIdentifier methodName, const NPVariant* arguments, uint32_t argumentCount, NPVariant* result);
+    static bool NP_InvokeDefault(NPObject*, const NPVariant* arguments, uint32_t argumentCount, NPVariant* result);
+    static bool NP_HasProperty(NPObject*, NPIdentifier propertyName);
+    static bool NP_GetProperty(NPObject*, NPIdentifier propertyName, NPVariant* result);
+    static bool NP_SetProperty(NPObject*, NPIdentifier propertyName, const NPVariant* value);
+    static bool NP_RemoveProperty(NPObject*, NPIdentifier propertyName);
+    static bool NP_Enumerate(NPObject*, NPIdentifier** identifiers, uint32_t* identifierCount);
+    static bool NP_Construct(NPObject*, const NPVariant* arguments, uint32_t argumentCount, NPVariant* result);
+
+    NPRemoteObjectMap* m_npRemoteObjectMap;
+    uint64_t m_npObjectID;
+};
+    
+} // namespace WebKit
+
+#endif // ENABLE(PLUGIN_PROCESS)
+
+#endif // NPObjectProxy_h