Replace open-coded toSVG<type> with DEFINE_SVG_PROPERTY_TYPE_CASTS

third_party/WebKit/Source/core/svg/properties/SVGPropertyHelper.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef SVGPropertyHelper_h
 #define SVGPropertyHelper_h
 
 #include "bindings/core/v8/ExceptionStatePlaceholder.h"
 #include "core/svg/properties/SVGProperty.h"
 
 namespace blink {
 
 template<typename Derived>
 class SVGPropertyHelper : public SVGPropertyBase {
 public:
     SVGPropertyHelper()
         : SVGPropertyBase(Derived::classType())
     {
     }
 
     virtual PassRefPtrWillBeRawPtr<SVGPropertyBase> cloneForAnimation(const String& value) const
     {
         RefPtrWillBeRawPtr<Derived> property = Derived::create();
         property->setValueAsString(value, IGNORE_EXCEPTION);
         return property.release();
     }
 };
 
-#define DEFINE_SVG_PROPERTY_TYPE_CASTS(thisType)\
-    DEFINE_TYPE_CASTS(thisType, SVGPropertyBase, value, value->type() == thisType::classType(), value.type() == thisType::classType());\
-    inline PassRefPtrWillBeRawPtr<thisType> to##thisType(PassRefPtrWillBeRawPtr<SVGPropertyBase> passBase)\
-    {\
-        RefPtrWillBeRawPtr<SVGPropertyBase> base = passBase;\
-        ASSERT(base->type() == thisType::classType());\
-        return static_pointer_cast<thisType>(base.release());\
-    }
-
-
 } // namespace blink
 
 #endif // SVGPropertyHelper_h