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

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

 /*
  * Copyright (C) 2014 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 26 matching lines @@
 
 namespace blink {
 
 class SVGMatrixTearOff;
 
 class SVGPointTearOff : public SVGPropertyTearOff<SVGPoint>,
                         public ScriptWrappable {
   DEFINE_WRAPPERTYPEINFO();
 
  public:
-  static SVGPointTearOff* Create(
-      SVGPoint* target,
-      SVGElement* context_element,
-      PropertyIsAnimValType property_is_anim_val,
-      const QualifiedName& attribute_name = QualifiedName::Null()) {
+  static SVGPointTearOff* Create(SVGPoint* target,
+                                 SVGElement* context_element,
+                                 PropertyIsAnimValType property_is_anim_val,
+                                 const QualifiedName& attribute_name) {
     return new SVGPointTearOff(target, context_element, property_is_anim_val,
                                attribute_name);
   }
+  static SVGPointTearOff* CreateDetached(const FloatPoint&);
 
   void setX(float, ExceptionState&);
   void setY(float, ExceptionState&);
   float x() { return Target()->X(); }
   float y() { return Target()->Y(); }
 
   SVGPointTearOff* matrixTransform(SVGMatrixTearOff*);
 
   DECLARE_VIRTUAL_TRACE_WRAPPERS();
 
  protected:
   SVGPointTearOff(SVGPoint*,
                   SVGElement* context_element,
                   PropertyIsAnimValType,
-                  const QualifiedName& attribute_name = QualifiedName::Null());
+                  const QualifiedName& attribute_name);
 };
 
 }  // namespace blink
 
 #endif  // SVGPointTearOff_h