Clean up creation of "detached" SVG* data type objects

third_party/WebKit/Source/core/svg/SVGRectTearOff.cpp

Index: third_party/WebKit/Source/core/svg/SVGRectTearOff.cpp
diff --git a/third_party/WebKit/Source/core/svg/SVGRectTearOff.cpp b/third_party/WebKit/Source/core/svg/SVGRectTearOff.cpp
index 29d6e692a6a6c45c5f44428bcce544d732c0b3a3..14820d6d5ef5e539246914b4cfcb79433e96bf1a 100644
--- a/third_party/WebKit/Source/core/svg/SVGRectTearOff.cpp
+++ b/third_party/WebKit/Source/core/svg/SVGRectTearOff.cpp
@@ -79,6 +79,11 @@ void SVGRectTearOff::setHeight(float f, ExceptionState& exception_state) {
   CommitChange();
 }
 
+SVGRectTearOff* SVGRectTearOff::CreateDetached(const FloatRect& rect) {
+  return Create(SVGRect::Create(rect), nullptr, kPropertyIsNotAnimVal,
+                QualifiedName::Null());
+}
+
 DEFINE_TRACE_WRAPPERS(SVGRectTearOff) {
   visitor->TraceWrappers(contextElement());
 }