Generate toFooElement() functions from tagname data

Source/core/svg/SVGVKernElement.h

Index: Source/core/svg/SVGVKernElement.h
diff --git a/Source/core/svg/SVGVKernElement.h b/Source/core/svg/SVGVKernElement.h
index 18f509ff6bce38c8ed944ffe46a0c763f113a8ea..e605c7b4b1fcb0ce6ec897e61f10dea25e8f38c3 100644
--- a/Source/core/svg/SVGVKernElement.h
+++ b/Source/core/svg/SVGVKernElement.h
@@ -21,7 +21,6 @@
 #define SVGVKernElement_h
 
 #if ENABLE(SVG_FONTS)
-#include "SVGNames.h"
 #include "core/svg/SVGElement.h"
 #include "core/svg/SVGFontElement.h"
 
@@ -42,12 +41,6 @@ private:
     virtual bool rendererIsNeeded(const NodeRenderingContext&) { return false; }
 };
 
-inline SVGVKernElement* toSVGVKernElement(Node* node)
-{
-    ASSERT_WITH_SECURITY_IMPLICATION(!node || node->hasTagName(SVGNames::vkernTag));
-    return static_cast<SVGVKernElement*>(node);
-}
-
 } // namespace WebCore
 
 #endif // ENABLE(SVG_FONTS)