Start removing the double-negative !ASSERT_DISABLED

Source/core/svg/SVGElement.h

 /*
  * Copyright (C) 2004, 2005, 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org>
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  *
  * 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.
  *
@@ skipping 219 matching lines @@
 
     void buildPendingResourcesIfNeeded();
 
     bool supportsSpatialNavigationFocus() const;
 
     WillBeHeapHashSet<RawPtrWillBeWeakMember<SVGElement> > m_elementsWithRelativeLengths;
 
     typedef HashMap<QualifiedName, RefPtr<SVGAnimatedPropertyBase> > AttributeToPropertyMap;
     AttributeToPropertyMap m_newAttributeToPropertyMap;
 
-#if !ASSERT_DISABLED
+#if ASSERT_ENABLED
     bool m_inRelativeLengthClientsInvalidation;
 #endif
     unsigned m_isContextElement : 1;
 
     OwnPtrWillBeMember<SVGElementRareData> m_SVGRareData;
     RefPtr<SVGAnimatedString> m_className;
 };
 
 struct SVGAttributeHashTranslator {
     static unsigned hash(const QualifiedName& key)
     {
         if (key.hasPrefix()) {
             QualifiedNameComponents components = { nullAtom.impl(), key.localName().impl(), key.namespaceURI().impl() };
             return hashComponents(components);
         }
         return DefaultHash<QualifiedName>::Hash::hash(key);
     }
     static bool equal(const QualifiedName& a, const QualifiedName& b) { return a.matches(b); }
 };
 
 DEFINE_ELEMENT_TYPE_CASTS(SVGElement, isSVGElement());
 
 template <> inline bool isElementOfType<const SVGElement>(const Node& node) { return node.isSVGElement(); }
 
 }
 
 #endif