Generate toFooElement() functions from tagname data

Source/core/svg/SVGFontFaceElement.h

Index: Source/core/svg/SVGFontFaceElement.h
diff --git a/Source/core/svg/SVGFontFaceElement.h b/Source/core/svg/SVGFontFaceElement.h
index c7998c3ff40669e223a14e19f6729f98faceba95..60ea03d433a163e5ece0a3f288be69a2d729c2ee 100644
--- a/Source/core/svg/SVGFontFaceElement.h
+++ b/Source/core/svg/SVGFontFaceElement.h
@@ -23,7 +23,6 @@
 #define SVGFontFaceElement_h
 
 #if ENABLE(SVG_FONTS)
-#include "SVGNames.h"
 #include "core/svg/SVGElement.h"
 
 namespace WebCore {
@@ -67,12 +66,6 @@ private:
     SVGFontElement* m_fontElement;
 };
 
-inline SVGFontFaceElement* toSVGFontFaceElement(Node* node)
-{
-    ASSERT_WITH_SECURITY_IMPLICATION(!node || node->hasTagName(SVGNames::font_faceTag));
-    return static_cast<SVGFontFaceElement*>(node);
-}
-
 } // namespace WebCore
 
 #endif // ENABLE(SVG_FONTS)