Fix an optimisation in ContainerNode::notifyNodeInsertedInternal

third_party/WebKit/Source/core/dom/Element.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Peter Kelly (pmk@post.com)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003-2011, 2013, 2014 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 786 matching lines @@
 {
     if (!elementData() || !elementData()->isUnique())
         createUniqueElementData();
     return toUniqueElementData(*m_elementData);
 }
 
 inline Node::InsertionNotificationRequest Node::insertedInto(ContainerNode* insertionPoint)
 {
     ASSERT(!childNeedsStyleInvalidation());
     ASSERT(!needsStyleInvalidation());
-    ASSERT(insertionPoint->inDocument() || isContainerNode());
+    ASSERT(insertionPoint->inDocument() || insertionPoint->isInShadowTree() || isContainerNode());
     if (insertionPoint->inDocument()) {
         setFlag(InDocumentFlag);
         insertionPoint->document().incrementNodeCount();
     }
     if (parentOrShadowHostNode()->isInShadowTree())
         setFlag(IsInShadowTreeFlag);
     if (childNeedsDistributionRecalc() && !insertionPoint->childNeedsDistributionRecalc())
         insertionPoint->markAncestorsWithChildNeedsDistributionRecalc();
     return InsertionDone;
 }
@@ skipping 85 matching lines @@
     static PassRefPtrWillBeRawPtr<T> create(const QualifiedName&, Document&)
 #define DEFINE_ELEMENT_FACTORY_WITH_TAGNAME(T) \
     PassRefPtrWillBeRawPtr<T> T::create(const QualifiedName& tagName, Document& document) \
     { \
         return adoptRefWillBeNoop(new T(tagName, document)); \
     }
 
 } // namespace
 
 #endif // Element_h