Convert SVG <foreignObject> to use RenderObject::isChildAllowed

Source/core/svg/SVGForeignObjectElement.h

 /*
  * Copyright (C) 2006 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.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 27 matching lines @@
     SVGAnimatedLength* height() const { return m_height.get(); }
 
 private:
     explicit SVGForeignObjectElement(Document&);
 
     bool isSupportedAttribute(const QualifiedName&);
     virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;
     virtual void svgAttributeChanged(const QualifiedName&) OVERRIDE;
 
     virtual bool rendererIsNeeded(const RenderStyle&) OVERRIDE;
-    virtual bool childShouldCreateRenderer(const Node& child) const OVERRIDE;
+    virtual bool childShouldCreateRenderer(const Node& child) const OVERRIDE { return true; }
     virtual RenderObject* createRenderer(RenderStyle*) OVERRIDE;
 
     virtual bool selfHasRelativeLengths() const OVERRIDE;
 
     RefPtr<SVGAnimatedLength> m_x;
     RefPtr<SVGAnimatedLength> m_y;
     RefPtr<SVGAnimatedLength> m_width;
     RefPtr<SVGAnimatedLength> m_height;
     BEGIN_DECLARE_ANIMATED_PROPERTIES(SVGForeignObjectElement)
         DECLARE_ANIMATED_STRING(Href, href)
     END_DECLARE_ANIMATED_PROPERTIES
 };
 
 DEFINE_NODE_TYPE_CASTS(SVGForeignObjectElement, hasTagName(SVGNames::foreignObjectTag));
 
 } // namespace WebCore
 
 #endif