Use DEFINE_NODE_TYPE_CASTS instead of using manual toHTMLFooElement()

Source/core/html/HTMLOptionElement.h

Index: Source/core/html/HTMLOptionElement.h
diff --git a/Source/core/html/HTMLOptionElement.h b/Source/core/html/HTMLOptionElement.h
index c2e55a3f37b987303a3c2cc403a0826ce729461f..e3fdad494d9e71a4638198388cf20be994451cf6 100644
--- a/Source/core/html/HTMLOptionElement.h
+++ b/Source/core/html/HTMLOptionElement.h
@@ -94,19 +94,7 @@ private:
     RefPtr<RenderStyle> m_style;
 };
 
-void toHTMLOptionElement(const HTMLOptionElement*); // This overload will catch anyone doing an unnecessary cast.
-
-inline HTMLOptionElement* toHTMLOptionElement(Node* node)
-{
-    ASSERT_WITH_SECURITY_IMPLICATION(!node || node->hasTagName(HTMLNames::optionTag));
-    return static_cast<HTMLOptionElement*>(node);
-}
-
-inline const HTMLOptionElement* toHTMLOptionElement(const Node* node)
-{
-    ASSERT_WITH_SECURITY_IMPLICATION(!node || node->hasTagName(HTMLNames::optionTag));
-    return static_cast<const HTMLOptionElement*>(node);
-}
+DEFINE_NODE_TYPE_CASTS(HTMLOptionElement, hasTagName(HTMLNames::optionTag));
 
 } // namespace WebCore