Add registerNodeListWithIdNameCache() assert.

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.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) Research In Motion Limited 2010-2011. All rights reserved.
@@ skipping 3746 matching lines @@
 #endif
     if (list->isRootedAtTreeScope()) {
         ASSERT(m_listsInvalidatedAtDocument.contains(list));
         m_listsInvalidatedAtDocument.remove(list);
     }
 }
 
 void Document::registerNodeListWithIdNameCache(const LiveNodeListBase* list)
 {
 #if ENABLE(OILPAN)
+    ASSERT(!m_nodeLists[InvalidateOnIdNameAttrChange].contains(list));
     m_nodeLists[InvalidateOnIdNameAttrChange].add(list);
 #else
     m_nodeListCounts[InvalidateOnIdNameAttrChange]++;
 #endif
 }
 
 void Document::unregisterNodeListWithIdNameCache(const LiveNodeListBase* list)
 {
 #if ENABLE(OILPAN)
     ASSERT(m_nodeLists[InvalidateOnIdNameAttrChange].contains(list));
@@ skipping 2172 matching lines @@
 #ifndef NDEBUG
 using namespace blink;
 void showLiveDocumentInstances()
 {
     Document::WeakDocumentSet& set = Document::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().string().utf8().data());
 }
 #endif