Remove bad assertion in SVGSMILElement's constructQualifiedName()

Source/core/svg/animation/SVGSMILElement.cpp

 /*
  * Copyright (C) 2008 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 252 matching lines @@
 static inline QualifiedName constructQualifiedName(const SVGElement* svgElement, const AtomicString& attributeName)
 {
     ASSERT(svgElement);
     if (attributeName.isEmpty())
         return anyQName();
     if (!attributeName.contains(':'))
         return QualifiedName(nullAtom, attributeName, nullAtom);
 
     AtomicString prefix;
     AtomicString localName;
-    if (!Document::parseQualifiedName(attributeName, prefix, localName, ASSERT_NO_EXCEPTION))
+    if (!Document::parseQualifiedName(attributeName, prefix, localName, IGNORE_EXCEPTION))
         return anyQName();
 
     const AtomicString& namespaceURI = svgElement->lookupNamespaceURI(prefix);
     if (namespaceURI.isEmpty())
         return anyQName();
 
     return QualifiedName(nullAtom, localName, namespaceURI);
 }
 
 static inline void clearTimesWithDynamicOrigins(Vector<SMILTimeWithOrigin>& timeList)
@@ skipping 1048 matching lines @@
     }
 }
 
 void SVGSMILElement::trace(Visitor* visitor)
 {
     visitor->trace(m_targetElement);
     SVGElement::trace(visitor);
 }
 
 }