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diff --git a/WebCore/dom/ProcessingInstruction.h b/WebCore/dom/ProcessingInstruction.h
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+++ b/WebCore/dom/ProcessingInstruction.h
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+/*
+ * This file is part of the DOM implementation for KDE.
+ *
+ * Copyright (C) 2000 Peter Kelly (pmk@post.com)
+ * Copyright (C) 2006 Apple Computer, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef ProcessingInstruction_h
+#define ProcessingInstruction_h
+
+#include "CachedResourceClient.h"
+#include "ContainerNode.h"
+
+namespace WebCore {
+
+class StyleSheet;
+class CSSStyleSheet;
+
+class ProcessingInstruction : public ContainerNode, private CachedResourceClient
+{
+public:
+    ProcessingInstruction(Document*);
+    ProcessingInstruction(Document*, const String& target, const String& data);
+    virtual ~ProcessingInstruction();
+
+    // DOM methods & attributes for Notation
+    String target() const { return m_target; }
+    String data() const { return m_data; }
+    void setData(const String&, ExceptionCode&);
+
+    virtual String nodeName() const;
+    virtual NodeType nodeType() const;
+    virtual String nodeValue() const;
+    virtual void setNodeValue(const String&, ExceptionCode&);
+    virtual PassRefPtr<Node> cloneNode(bool deep);
+    virtual bool childTypeAllowed(NodeType);
+    virtual bool offsetInCharacters() const;
+    virtual int maxCharacterOffset() const;
+
+    // Other methods (not part of DOM)
+    String localHref() const { return m_localHref; }
+    StyleSheet* sheet() const { return m_sheet.get(); }
+    bool checkStyleSheet();
+    virtual void setCSSStyleSheet(const String& url, const String& charset, const CachedCSSStyleSheet*);
+#if ENABLE(XSLT)
+    virtual void setXSLStyleSheet(const String& url, const String& sheet);
+#endif
+    void setCSSStyleSheet(CSSStyleSheet*);
+    bool isLoading() const;
+    virtual bool sheetLoaded();
+    virtual String toString() const;
+
+#if ENABLE(XSLT)
+    bool isXSL() const { return m_isXSL; }
+#endif
+
+private:
+    void parseStyleSheet(const String& sheet);
+
+    String m_target;
+    String m_data;
+    String m_localHref;
+    CachedResource* m_cachedSheet;
+    RefPtr<StyleSheet> m_sheet;
+    bool m_loading;
+#if ENABLE(XSLT)
+    bool m_isXSL;
+#endif
+};
+
+} //namespace
+
+#endif