Make removeChild faster with active ranges

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 3751 matching lines @@
 {
     HeapHashSet<WeakMember<NodeIterator>> nodeIteratorsList = m_nodeIterators;
     for (NodeIterator* ni : nodeIteratorsList) {
         if (ni->root() == node) {
             detachNodeIterator(ni);
             newDocument.attachNodeIterator(ni);
         }
     }
 }
 
-void Document::updateRangesAfterChildrenChanged(ContainerNode* container)
-{
-    for (Range* range : m_ranges)
-        range->nodeChildrenChanged(container);
-}
-
 void Document::updateRangesAfterNodeMovedToAnotherDocument(const Node& node)
 {
     DCHECK_NE(node.document(), this);
     if (m_ranges.isEmpty())
         return;
 
     AttachedRangeSet ranges = m_ranges;
     for (Range* range : ranges)
         range->updateOwnerDocumentIfNeeded();
 }
@@ skipping 2211 matching lines @@
 #ifndef NDEBUG
 using namespace blink;
 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