Move insertAdjacentElement/insertAdjacentText to Element.

Source/core/html/HTMLElement.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2009 Apple Inc. All rights reserved.
  *
  * 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.
  *
@@ skipping 32 matching lines @@
     static PassRefPtr<HTMLElement> create(const QualifiedName& tagName, Document&);
 
     virtual String title() const OVERRIDE FINAL;
 
     virtual short tabIndex() const OVERRIDE;
     void setTabIndex(int);
 
     void setInnerText(const String&, ExceptionState&);
     void setOuterText(const String&, ExceptionState&);
 
-    Element* insertAdjacentElement(const String& where, Element* newChild, ExceptionState&);
-    void insertAdjacentText(const String& where, const String& text, ExceptionState&);
-
     virtual bool hasCustomFocusLogic() const;
     virtual bool supportsFocus() const OVERRIDE;
 
     String contentEditable() const;
     void setContentEditable(const String&, ExceptionState&);
 
     virtual bool draggable() const;
     void setDraggable(bool);
 
     bool spellcheck() const;
@@ skipping 64 matching lines @@
 inline HTMLElement::HTMLElement(const QualifiedName& tagName, Document& document, ConstructionType type = CreateHTMLElement)
     : Element(tagName, &document, type)
 {
     ASSERT(!tagName.localName().isNull());
     ScriptWrappable::init(this);
 }
 
 } // namespace WebCore
 
 #endif // HTMLElement_h