Clean up toHTMLFooElement() using DEFINE_NODE_TYPE_CASTS_WITH_FUNCTION

Source/core/html/HTMLLabelElement.h

Index: Source/core/html/HTMLLabelElement.h
diff --git a/Source/core/html/HTMLLabelElement.h b/Source/core/html/HTMLLabelElement.h
index f19939559e68f50e39948c27bc48209ed9c1eeff..a71af43541b8b4c5ca05202468cba3ee0ede70fe 100644
--- a/Source/core/html/HTMLLabelElement.h
+++ b/Source/core/html/HTMLLabelElement.h
@@ -66,11 +66,7 @@ inline bool isHTMLLabelElement(const Element* element)
     return element->hasTagName(HTMLNames::labelTag);
 }
 
-inline HTMLLabelElement* toHTMLLabelElement(Node* node)
-{
-    ASSERT_WITH_SECURITY_IMPLICATION(!node || isHTMLLabelElement(node));
-    return static_cast<HTMLLabelElement*>(node);
-}
+DEFINE_NODE_TYPE_CASTS(HTMLLabelElement, hasTagName(HTMLNames::labelTag));
 
 } //namespace