Generate toCSSCalcValue() instead of using manual inline functions

Source/core/css/CSSCalculationValue.h

Index: Source/core/css/CSSCalculationValue.h
diff --git a/Source/core/css/CSSCalculationValue.h b/Source/core/css/CSSCalculationValue.h
index 6bf1ac771499d923090ba6d7c18a34e85af14399..ca48d1b93300efa4d479940786937f264b92bddc 100644
--- a/Source/core/css/CSSCalculationValue.h
+++ b/Source/core/css/CSSCalculationValue.h
@@ -139,17 +139,7 @@ private:
     const bool m_nonNegative;
 };
 
-inline CSSCalcValue* toCSSCalcValue(CSSValue* value)
-{
-    ASSERT_WITH_SECURITY_IMPLICATION(!value || value->isCalculationValue());
-    return static_cast<CSSCalcValue*>(value);
-}
-
-inline const CSSCalcValue* toCSSCalcValue(const CSSValue* value)
-{
-    ASSERT_WITH_SECURITY_IMPLICATION(!value || value->isCalculationValue());
-    return static_cast<const CSSCalcValue*>(value);
-}
+DEFINE_CSS_VALUE_TYPE_CASTS(CalcValue);
 
 } // namespace WebCore