[wrapper-tracing] Add NodeList write barriers

third_party/WebKit/Source/core/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.
@@ skipping 3965 matching lines @@
   if (m_cssTarget)
     m_cssTarget->pseudoStateChanged(CSSSelector::PseudoTarget);
   m_cssTarget = newTarget;
   if (m_cssTarget)
     m_cssTarget->pseudoStateChanged(CSSSelector::PseudoTarget);
 }
 
 void Document::registerNodeList(const LiveNodeListBase* list) {
   DCHECK(!m_nodeLists[list->invalidationType()].contains(list));
   m_nodeLists[list->invalidationType()].add(list);
+  ScriptWrappableVisitor::writeBarrier(this, list);
   if (list->isRootedAtTreeScope())
     m_listsInvalidatedAtDocument.add(list);
 }
 
 void Document::unregisterNodeList(const LiveNodeListBase* list) {
   DCHECK(m_nodeLists[list->invalidationType()].contains(list));
   m_nodeLists[list->invalidationType()].remove(list);
   if (list->isRootedAtTreeScope()) {
     DCHECK(m_listsInvalidatedAtDocument.contains(list));
     m_listsInvalidatedAtDocument.remove(list);
   }
 }
 
 void Document::registerNodeListWithIdNameCache(const LiveNodeListBase* list) {
   DCHECK(!m_nodeLists[InvalidateOnIdNameAttrChange].contains(list));
   m_nodeLists[InvalidateOnIdNameAttrChange].add(list);
+  ScriptWrappableVisitor::writeBarrier(this, list);
 }
 
 void Document::unregisterNodeListWithIdNameCache(const LiveNodeListBase* list) {
   DCHECK(m_nodeLists[InvalidateOnIdNameAttrChange].contains(list));
   m_nodeLists[InvalidateOnIdNameAttrChange].remove(list);
 }
 
 void Document::attachNodeIterator(NodeIterator* ni) {
   m_nodeIterators.add(ni);
 }
@@ skipping 2383 matching lines @@
 }
 
 void showLiveDocumentInstances() {
   WeakDocumentSet& set = liveDocumentSet();
   fprintf(stderr, "There are %u documents currently alive:\n", set.size());
   for (Document* document : set)
     fprintf(stderr, "- Document %p URL: %s\n", document,
             document->url().getString().utf8().data());
 }
 #endif