Merge 93227

Source/WebCore/dom/ProcessingInstruction.cpp

 /*
  * Copyright (C) 2000 Peter Kelly (pmk@post.com)
  * Copyright (C) 2006, 2008, 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.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 44 matching lines @@
     return adoptRef(new ProcessingInstruction(document, target, data));
 }
 
 ProcessingInstruction::~ProcessingInstruction()
 {
     if (m_sheet)
         m_sheet->clearOwnerNode();
 
     if (m_cachedSheet)
         m_cachedSheet->removeClient(this);
+
+    if (inDocument())
+        document()->removeStyleSheetCandidateNode(this);
 }
 
 void ProcessingInstruction::setData(const String& data, ExceptionCode&)
 {
     int oldLength = m_data.length();
     m_data = data;
     document()->textRemoved(this, 0, oldLength);
     checkStyleSheet();
 }
 
@@ skipping 217 matching lines @@
         document()->styleSelectorChanged(DeferRecalcStyle);
 }
 
 void ProcessingInstruction::finishParsingChildren()
 {
     m_createdByParser = false;
     ContainerNode::finishParsingChildren();
 }
 
 } // namespace