Clean up child checks in ContainerNode.

sky/engine/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 366 matching lines @@
 
     void attachRange(Range*);
     void detachRange(Range*);
 
     void updateRangesAfterChildrenChanged(ContainerNode*);
     void updateRangesAfterNodeMovedToAnotherDocument(const Node&);
     // nodeChildrenWillBeRemoved is used when removing all node children at once.
     void nodeChildrenWillBeRemoved(ContainerNode&);
     // nodeWillBeRemoved is only safe when removing one node at a time.
     void nodeWillBeRemoved(Node&);
-    bool canReplaceChild(const Node& newChild, const Node& oldChild) const;
 
     void didInsertText(Node*, unsigned offset, unsigned length);
     void didRemoveText(Node*, unsigned offset, unsigned length);
     void didMergeTextNodes(Text& oldNode, unsigned offset);
     void didSplitTextNode(Text& oldNode);
 
     void clearDOMWindow() { m_domWindow = nullptr; }
     LocalDOMWindow* domWindow() const { return m_domWindow; }
 
     static void registerEventFactory(PassOwnPtr<EventFactoryBase>);
@@ skipping 239 matching lines @@
     void updateStyle(StyleRecalcChange);
 
     void detachParser();
 
     virtual bool isDocument() const override final { return true; }
 
     virtual void childrenChanged(const ChildrenChange&) override;
 
     virtual String nodeName() const override final;
     virtual NodeType nodeType() const override final;
-    virtual bool childTypeAllowed(NodeType) const override final;
     virtual PassRefPtr<Node> cloneNode(bool deep = true) override final;
 
 #if !ENABLE(OILPAN)
     virtual void refExecutionContext() override final { ref(); }
     virtual void derefExecutionContext() override final { deref(); }
 #endif
 
     virtual const KURL& virtualURL() const override final; // Same as url(), but needed for ExecutionContext to implement it without a performance loss for direct calls.
     virtual KURL virtualCompleteURL(const String&) const override final; // Same as completeURL() for the same reason as above.
 
@@ skipping 182 matching lines @@
 Node* eventTargetNodeForDocument(Document*);
 
 } // namespace blink
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showLiveDocumentInstances();
 #endif
 
 #endif // Document_h