Replace open-coded toSVG<type> with DEFINE_SVG_PROPERTY_TYPE_CASTS

third_party/WebKit/Source/core/svg/SVGString.h

Index: third_party/WebKit/Source/core/svg/SVGString.h
diff --git a/third_party/WebKit/Source/core/svg/SVGString.h b/third_party/WebKit/Source/core/svg/SVGString.h
index f17b0175fe60f58399679c774c1906cce8094dad..d7472ff1fd6d4526b672ac45f0416917fa00217b 100644
--- a/third_party/WebKit/Source/core/svg/SVGString.h
+++ b/third_party/WebKit/Source/core/svg/SVGString.h
@@ -86,12 +86,7 @@ private:
     String m_value;
 };
 
-inline PassRefPtrWillBeRawPtr<SVGString> toSVGString(PassRefPtrWillBeRawPtr<SVGPropertyBase> passBase)
-{
-    RefPtrWillBeRawPtr<SVGPropertyBase> base = passBase;
-    ASSERT(base->type() == SVGString::classType());
-    return static_pointer_cast<SVGString>(base.release());
-}
+DEFINE_SVG_PROPERTY_TYPE_CASTS(SVGString);
 
 } // namespace blink