Clean up child checks in ContainerNode.

sky/engine/core/dom/Element.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Peter Kelly (pmk@post.com)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012, 2013 Apple Inc. All rights reserved.
  *           (C) 2007 Eric Seidel (eric@webkit.org)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 1046 matching lines @@
 }
 
 ShadowRoot* Element::shadowRoot() const
 {
     ElementShadow* elementShadow = shadow();
     if (!elementShadow)
         return 0;
     return elementShadow->youngestShadowRoot();
 }
 
-bool Element::childTypeAllowed(NodeType type) const
-{
-    switch (type) {
-    case ELEMENT_NODE:
-    case TEXT_NODE:
-        return true;
-    default:
-        break;
-    }
-    return false;
-}
-
 void Element::childrenChanged(const ChildrenChange& change)
 {
     ContainerNode::childrenChanged(change);
 
     if (ElementShadow* shadow = this->shadow())
         shadow->setNeedsDistributionRecalc();
 }
 
 #ifndef NDEBUG
 void Element::formatForDebugger(char* buffer, unsigned length) const
@@ skipping 713 matching lines @@
         return false;
     // Turn off style sharing for elements that can gain layers for reasons outside of the style system.
     // See comments in RenderObject::setStyle().
     // FIXME: Why does gaining a layer from outside the style system require disabling sharing?
     if (isHTMLCanvasElement(*this))
         return false;
     return true;
 }
 
 } // namespace blink