Make AttachBehavior a required argument.

Source/core/editing/SplitElementCommand.cpp

 /*
  * Copyright (C) 2005, 2008 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 40 matching lines @@
 
     Vector<RefPtr<Node> > children;
     for (Node* node = m_element2->firstChild(); node != m_atChild; node = node->nextSibling())
         children.append(node);
 
     TrackExceptionState es;
 
     ContainerNode* parent = m_element2->parentNode();
     if (!parent || !parent->rendererIsEditable())
         return;
-    parent->insertBefore(m_element1.get(), m_element2.get(), es);
+    parent->insertBefore(m_element1.get(), m_element2.get(), es, DeprecatedAttachNow);
     if (es.hadException())
         return;
 
     // Delete id attribute from the second element because the same id cannot be used for more than one element
     m_element2->removeAttribute(HTMLNames::idAttr);
 
     size_t size = children.size();
     for (size_t i = 0; i < size; ++i)
-        m_element1->appendChild(children[i], es);
+        m_element1->appendChild(children[i], es, DeprecatedAttachNow);
 }
 
 void SplitElementCommand::doApply()
 {
     m_element1 = m_element2->cloneElementWithoutChildren();
 
     executeApply();
 }
 
 void SplitElementCommand::doUnapply()
 {
     if (!m_element1 || !m_element1->rendererIsEditable() || !m_element2->rendererIsEditable())
         return;
 
     Vector<RefPtr<Node> > children;
     for (Node* node = m_element1->firstChild(); node; node = node->nextSibling())
         children.append(node);
 
     RefPtr<Node> refChild = m_element2->firstChild();
 
     size_t size = children.size();
     for (size_t i = 0; i < size; ++i)
-        m_element2->insertBefore(children[i].get(), refChild.get(), IGNORE_EXCEPTION);
+        m_element2->insertBefore(children[i].get(), refChild.get(), IGNORE_EXCEPTION, DeprecatedAttachNow);
 
     // Recover the id attribute of the original element.
     if (m_element1->hasAttribute(HTMLNames::idAttr))
         m_element2->setAttribute(HTMLNames::idAttr, m_element1->getAttribute(HTMLNames::idAttr));
 
     m_element1->remove(IGNORE_EXCEPTION);
 }
 
 void SplitElementCommand::doReapply()
 {
     if (!m_element1)
         return;
 
     executeApply();
 }
 
 #ifndef NDEBUG
 void SplitElementCommand::getNodesInCommand(HashSet<Node*>& nodes)
 {
     addNodeAndDescendants(m_element1.get(), nodes);
     addNodeAndDescendants(m_element2.get(), nodes);
     addNodeAndDescendants(m_atChild.get(), nodes);
 }
 #endif
 
 } // namespace WebCore