Simplify SVGAnimated* initialization

third_party/WebKit/Source/core/svg/SVGAnimatedPreserveAspectRatio.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 27 matching lines @@
 namespace blink {
 
 class SVGAnimatedPreserveAspectRatio
     : public SVGAnimatedProperty<SVGPreserveAspectRatio>,
       public ScriptWrappable {
   DEFINE_WRAPPERTYPEINFO();
 
  public:
   static SVGAnimatedPreserveAspectRatio* create(
       SVGElement* contextElement,
-      const QualifiedName& attributeName,
-      SVGPreserveAspectRatio* initialValue) {
-    return new SVGAnimatedPreserveAspectRatio(contextElement, attributeName,
-                                              initialValue);
+      const QualifiedName& attributeName) {
+    return new SVGAnimatedPreserveAspectRatio(contextElement, attributeName);
   }
 
   DEFINE_INLINE_VIRTUAL_TRACE_WRAPPERS() {
     visitor->traceWrappers(contextElement());
   }
 
  protected:
   SVGAnimatedPreserveAspectRatio(SVGElement* contextElement,
-                                 const QualifiedName& attributeName,
-                                 SVGPreserveAspectRatio* initialValue)
-      : SVGAnimatedProperty<SVGPreserveAspectRatio>(contextElement,
-                                                    attributeName,
-                                                    initialValue) {}
+                                 const QualifiedName& attributeName)
+      : SVGAnimatedProperty<SVGPreserveAspectRatio>(
+            contextElement,
+            attributeName,
+            SVGPreserveAspectRatio::create()) {}
 };
 
 }  // namespace blink
 
 #endif  // SVGAnimatedPreserveAspectRatio_h