Fix virtual/override/final usage in Source/core/svg/.

Source/core/svg/properties/SVGPropertyTearOff.h

 /*
  * Copyright (C) 2013 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 114 matching lines @@
     Property* target()
     {
         return m_target.get();
     }
 
     void setTarget(PassRefPtrWillBeRawPtr<Property> target)
     {
         m_target = target;
     }
 
-    virtual AnimatedPropertyType type() const override
+    AnimatedPropertyType type() const override
     {
         return Property::classType();
     }
 
     DEFINE_INLINE_VIRTUAL_TRACE()
     {
         visitor->trace(m_target);
         SVGPropertyTearOffBase::trace(visitor);
     }
 
 protected:
     SVGPropertyTearOff(PassRefPtrWillBeRawPtr<Property> target, SVGElement* contextElement, PropertyIsAnimValType propertyIsAnimVal, const QualifiedName& attributeName = QualifiedName::null())
         : SVGPropertyTearOffBase(contextElement, propertyIsAnimVal, attributeName)
         , m_target(target)
     {
         ASSERT(m_target);
     }
 
 private:
     RefPtrWillBeMember<Property> m_target;
 };
 
 }
 
 #endif // SVGPropertyTearOff_h