Replace ENABLE(ASSERT) with DCHECK_IS_ON().

third_party/WebKit/Source/core/svg/SVGUseElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Nikolas Zimmermann
  * <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis@kde.org>
  * Copyright (C) Research In Motion Limited 2009-2010. All rights reserved.
  * Copyright (C) 2011 Torch Mobile (Beijing) Co. Ltd. All rights reserved.
  * Copyright (C) 2012 University of Szeged
  * Copyright (C) 2012 Renata Hodovan <reni@webkit.org>
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 85 matching lines @@
   visitor->trace(m_y);
   visitor->trace(m_width);
   visitor->trace(m_height);
   visitor->trace(m_targetElementInstance);
   visitor->trace(m_resource);
   SVGGraphicsElement::trace(visitor);
   SVGURIReference::trace(visitor);
   DocumentResourceClient::trace(visitor);
 }
 
-#if ENABLE(ASSERT)
+#if DCHECK_IS_ON()
 static inline bool isWellFormedDocument(Document* document) {
   if (document->isXMLDocument())
     return static_cast<XMLDocumentParser*>(document->parser())->wellFormed();
   return true;
 }
 #endif
 
 Node::InsertionNotificationRequest SVGUseElement::insertedInto(
     ContainerNode* rootParent) {
   // This functions exists to assure assumptions made in the code regarding
@@ skipping 607 matching lines @@
 
   if (m_resource)
     m_resource->removeClient(this);
 
   m_resource = resource;
   if (m_resource)
     m_resource->addClient(this);
 }
 
 }  // namespace blink