Make AttachBehavior a required argument.

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 847 matching lines @@
         }
         RefPtr<Element> newElement = createElement(oldElement->tagQName(), false);
 
         newElement->cloneDataFromElement(*oldElement);
 
         if (deep) {
             for (Node* oldChild = oldElement->firstChild(); oldChild; oldChild = oldChild->nextSibling()) {
                 RefPtr<Node> newChild = importNode(oldChild, true, es);
                 if (es.hadException())
                     return 0;
-                newElement->appendChild(newChild.release(), es);
+                newElement->appendChild(newChild.release(), es, DeprecatedAttachNow);
                 if (es.hadException())
                     return 0;
             }
         }
 
         return newElement.release();
     }
     case ATTRIBUTE_NODE:
         return Attr::create(this, QualifiedName(nullAtom, toAttr(importedNode)->name(), nullAtom), toAttr(importedNode)->value());
     case DOCUMENT_FRAGMENT_NODE: {
         if (importedNode->isShadowRoot()) {
             // ShadowRoot nodes should not be explicitly importable.
             // Either they are imported along with their host node, or created implicitly.
             break;
         }
         DocumentFragment* oldFragment = static_cast<DocumentFragment*>(importedNode);
         RefPtr<DocumentFragment> newFragment = createDocumentFragment();
         if (deep) {
             for (Node* oldChild = oldFragment->firstChild(); oldChild; oldChild = oldChild->nextSibling()) {
                 RefPtr<Node> newChild = importNode(oldChild, true, es);
                 if (es.hadException())
                     return 0;
-                newFragment->appendChild(newChild.release(), es);
+                newFragment->appendChild(newChild.release(), es, DeprecatedAttachNow);
                 if (es.hadException())
                     return 0;
             }
         }
 
         return newFragment.release();
     }
     case ENTITY_NODE:
     case NOTATION_NODE:
         // FIXME: It should be possible to import these node types, however in DOM3 the DocumentType is readonly, so there isn't much sense in doing that.
@@ skipping 4318 matching lines @@
 {
     return DocumentLifecycleNotifier::create(this);
 }
 
 DocumentLifecycleNotifier* Document::lifecycleNotifier()
 {
     return static_cast<DocumentLifecycleNotifier*>(ScriptExecutionContext::lifecycleNotifier());
 }
 
 } // namespace WebCore