Delete the upstreamed files: V8NPUtils.h V8NPUtils.cpp NPV8Object.h NPV8Object.cpp.

webkit/port/bindings/v8/NPV8Object.h

-// Copyright (c) 2006-2009 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef np_v8object_h
-#define np_v8object_h
-
-#include "bindings/npruntime.h"
-#include <v8.h>
-
-namespace WebCore {
-    class DOMWindow;
-}
-
-extern NPClass* npScriptObjectClass;
-
-// A V8NPObject is a NPObject which carries additional V8-specific
-// information.  It is allocated and deallocated by AllocV8NPObject()
-// and FreeV8NPObject() methods.
-struct V8NPObject {
-    NPObject object;
-    v8::Persistent<v8::Object> v8Object;
-    WebCore::DOMWindow* rootObject;
-};
-
-struct PrivateIdentifier {
-    union {
-        const NPUTF8* string;
-        int32_t number;
-    } value;
-    bool isString;
-};
-
-NPObject* npCreateV8ScriptObject(NPP npp, v8::Handle<v8::Object>, WebCore::DOMWindow*);
-
-#endif // np_v8object_h