Merge 75193 - Merge 75168

WebCore/css/CSSRuleList.cpp

 /**
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * (C) 2002-2003 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2002, 2005, 2006 Apple Computer, Inc.
  *
  * 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 58 matching lines @@
 
 void CSSRuleList::deleteRule(unsigned index)
 {
     ASSERT(!m_list);
 
     if (index >= m_lstCSSRules.size()) {
         // FIXME: Should we throw an INDEX_SIZE_ERR exception here?
         return;
     }
 
+    m_lstCSSRules[index]->setParent(0);
     m_lstCSSRules.remove(index);
 }
 
 void CSSRuleList::append(CSSRule* rule)
 {
     ASSERT(!m_list);
     if (!rule) {
         // FIXME: Should we throw an exception?
         return;
     }
@@ skipping 12 matching lines @@
     if (index > m_lstCSSRules.size()) {
         // FIXME: Should we throw an INDEX_SIZE_ERR exception here?
         return 0;
     }
 
     m_lstCSSRules.insert(index, rule);
     return index;
 }
 
 } // namespace WebCore