Use toCSSFooValue() generation macro for CSSInheritedValue, CSSVariableValue and CSSGridTemplateVal…

Source/core/css/CSSGridTemplateValue.h

Index: Source/core/css/CSSGridTemplateValue.h
diff --git a/Source/core/css/CSSGridTemplateValue.h b/Source/core/css/CSSGridTemplateValue.h
index f2b796a283fbb84d3b47ddf132523c363bfae620..40967eddbce09690b391647c0f34047aec689f90 100644
--- a/Source/core/css/CSSGridTemplateValue.h
+++ b/Source/core/css/CSSGridTemplateValue.h
@@ -56,20 +56,7 @@ private:
     size_t m_columnCount;
 };
 
-inline CSSGridTemplateValue* toCSSGridTemplateValue(CSSValue* value)
-{
-    ASSERT_WITH_SECURITY_IMPLICATION(value->isGridTemplateValue());
-    return static_cast<CSSGridTemplateValue*>(value);
-}
-
-inline const CSSGridTemplateValue* toCSSGridTemplateValue(const CSSValue* value)
-{
-    ASSERT_WITH_SECURITY_IMPLICATION(value->isGridTemplateValue());
-    return static_cast<const CSSGridTemplateValue*>(value);
-}
-
-// Catch unneeded cast.
-void toCSSGridTemplateValue(const CSSGridTemplateValue*);
+DEFINE_CSS_VALUE_TYPE_CASTS(GridTemplateValue);
 
 } // namespace WebCore