Implement cloneNode for Document

Source/core/dom/Document.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
@@ skipping 1004 matching lines @@
 
     void adjustFloatQuadsForScrollAndAbsoluteZoom(Vector<FloatQuad>&, RenderObject*);
     void adjustFloatRectForScrollAndAbsoluteZoom(FloatRect&, RenderObject*);
 
     bool hasActiveParser();
     unsigned activeParserCount() { return m_activeParserCount; }
     void incrementActiveParserCount() { ++m_activeParserCount; }
     void decrementActiveParserCount();
 
     void setContextFeatures(PassRefPtr<ContextFeatures>);
-    ContextFeatures* contextFeatures() { return m_contextFeatures.get(); }
+    ContextFeatures* contextFeatures() const { return m_contextFeatures.get(); }
 
     DocumentSharedObjectPool* sharedObjectPool() { return m_sharedObjectPool.get(); }
 
     void didRemoveAllPendingStylesheet();
     void setNeedsNotifyRemoveAllPendingStylesheet() { m_needsNotifyRemoveAllPendingStylesheet = true; }
     void clearStyleResolver();
     void notifySeamlessChildDocumentsOfStylesheetUpdate() const;
 
     bool inStyleRecalc() { return m_inStyleRecalc; }
 
@@ skipping 30 matching lines @@
 
 protected:
     Document(const DocumentInit&, DocumentClassFlags = DefaultDocumentClass);
 
     virtual void didUpdateSecurityOrigin() OVERRIDE;
 
     void clearXMLVersion() { m_xmlVersion = String(); }
 
     virtual void dispose() OVERRIDE;
 
+    virtual PassRefPtr<Document> cloneDocumentWithoutChildren();
+
 private:
     friend class Node;
     friend class IgnoreDestructiveWriteCountIncrementer;
 
     void updateDistributionIfNeeded();
 
     void detachParser();
 
     typedef void (*ArgumentsCallback)(const String& keyString, const String& valueString, Document*, void* data);
     void processArguments(const String& features, void* data, ArgumentsCallback);
 
     virtual bool isDocument() const OVERRIDE { return true; }
 
     virtual void childrenChanged(bool changedByParser = false, Node* beforeChange = 0, Node* afterChange = 0, int childCountDelta = 0);
 
     virtual String nodeName() const;
     virtual NodeType nodeType() const;
     virtual bool childTypeAllowed(NodeType) const;
     virtual PassRefPtr<Node> cloneNode(bool deep = true);
+    void cloneDataFromDocument(const Document&);
 
     virtual void refScriptExecutionContext() { ref(); }
     virtual void derefScriptExecutionContext() { deref(); }
     virtual PassOwnPtr<LifecycleNotifier> createLifecycleNotifier() OVERRIDE;
 
     virtual const KURL& virtualURL() const; // Same as url(), but needed for ScriptExecutionContext to implement it without a performance loss for direct calls.
     virtual KURL virtualCompleteURL(const String&) const; // Same as completeURL() for the same reason as above.
 
     virtual void addMessage(MessageSource, MessageLevel, const String& message, const String& sourceURL, unsigned lineNumber, ScriptState*);
     void internalAddMessage(MessageSource, MessageLevel, const String& message, const String& sourceURL, unsigned lineNumber, PassRefPtr<ScriptCallStack>, ScriptState*);
@@ skipping 319 matching lines @@
 inline bool Node::isDocumentNode() const
 {
     return this == documentInternal();
 }
 
 Node* eventTargetNodeForDocument(Document*);
 
 } // namespace WebCore
 
 #endif // Document_h