Merge 138918

Source/WebCore/dom/Document.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2008, 2009, 2011, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) Research In Motion Limited 2010-2011. All rights reserved.
@@ skipping 2366 matching lines @@
         m_closeAfterStyleRecalc = true;
         return;
     }
 
     bool wasLocationChangePending = frame() && frame()->navigationScheduler()->locationChangePending();
     bool doload = !parsing() && m_parser && !m_processingLoadEvent && !wasLocationChangePending;
     
     if (!doload)
         return;
 
+    // Call to dispatchWindowLoadEvent can blow us from underneath.
+    RefPtr<Document> protect(this);
+
     m_processingLoadEvent = true;
 
     ScriptableDocumentParser* parser = scriptableDocumentParser();
     m_wellFormed = parser && parser->wellFormed();
 
     // We have to clear the parser, in case someone document.write()s from the
     // onLoad event handler, as in Radar 3206524.
     detachParser();
 
     // Parser should have picked up all preloads by now
@@ skipping 3577 matching lines @@
             m_templateContentsOwnerDocument = HTMLDocument::create(0, blankURL());
         else
             m_templateContentsOwnerDocument = Document::create(0, blankURL());
     }
 
     return m_templateContentsOwnerDocument.get();
 }
 #endif
 
 } // namespace WebCore