Persist invalidation sets on detach root

third_party/WebKit/Source/core/dom/Node.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, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 890 matching lines @@
 }
 
 void Node::detach(const AttachContext& context)
 {
     ASSERT(document().lifecycle().stateAllowsDetach());
     DocumentLifecycle::DetachScope willDetach(document().lifecycle());
 
     if (layoutObject())
         layoutObject()->destroyAndCleanupAnonymousWrappers();
     setLayoutObject(nullptr);
-
     setStyleChange(NeedsReattachStyleChange);
     clearChildNeedsStyleInvalidation();
 }
 
 void Node::reattachWhitespaceSiblingsIfNeeded(Text* start)
 {
     ScriptForbiddenScope forbidScriptDuringRawIteration;
     for (Node* sibling = start; sibling; sibling = sibling->nextSibling()) {
         if (sibling->isTextNode() && toText(sibling)->containsOnlyWhitespace()) {
             bool hadLayoutObject = !!sibling->layoutObject();
@@ skipping 1448 matching lines @@
 
 void showNodePath(const blink::Node* node)
 {
     if (node)
         node->showNodePathForThis();
     else
         fprintf(stderr, "Cannot showNodePath for (nil)\n");
 }
 
 #endif