Allow assertions to be enabled in Blink Release builds.

Source/core/svg/SVGScriptElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2007 Rob Buis <buis@kde.org>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 172 matching lines @@
 PassRefPtrWillBeRawPtr<Element> SVGScriptElement::cloneElementWithoutAttributesAndChildren()
 {
     return adoptRefWillBeNoop(new SVGScriptElement(document(), false, m_loader->alreadyStarted()));
 }
 
 void SVGScriptElement::dispatchLoadEvent()
 {
     dispatchEvent(Event::create(EventTypeNames::load));
 }
 
-#ifndef NDEBUG
+#if ENABLE(ASSERT)
 bool SVGScriptElement::isAnimatableAttribute(const QualifiedName& name) const
 {
     if (name == SVGNames::typeAttr)
         return false;
 
     return SVGElement::isAnimatableAttribute(name);
 }
 #endif
 
 }