Merge 109362

Source/WebCore/html/HTMLTextAreaElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2010 Apple Inc. All rights reserved.
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  * Copyright (C) 2007 Samuel Weinig (sam@webkit.org)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 336 matching lines @@
     for (Node* n = firstChild(); n; n = n->nextSibling()) {
         if (n->isTextNode())
             value += static_cast<Text*>(n)->data();
     }
 
     return value;
 }
 
 void HTMLTextAreaElement::setDefaultValue(const String& defaultValue)
 {
+    RefPtr<Node> protectFromMutationEvents(this);
+
     // To preserve comments, remove only the text nodes, then add a single text node.
-
     Vector<RefPtr<Node> > textNodes;
     for (Node* n = firstChild(); n; n = n->nextSibling()) {
         if (n->isTextNode())
             textNodes.append(n);
     }
     ExceptionCode ec;
     size_t size = textNodes.size();
     for (size_t i = 0; i < size; ++i)
         removeChild(textNodes[i].get(), ec);
 
@@ skipping 82 matching lines @@
         m_placeholder = HTMLDivElement::create(document());
         m_placeholder->setShadowPseudoId("-webkit-input-placeholder");
         shadowRoot()->insertBefore(m_placeholder, shadowRoot()->firstChild()->nextSibling(), ec);
         ASSERT(!ec);
     }
     m_placeholder->setInnerText(placeholderText, ec);
     ASSERT(!ec);
 }
 
 }