Remove more Node API.

sky/engine/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 1800 matching lines @@
 
     if (m_focusedElement == newFocusedElement)
         return true;
 
     bool focusChangeBlocked = false;
     RefPtr<Element> oldFocusedElement = m_focusedElement;
     m_focusedElement = nullptr;
 
     // Remove focus from the existing focus node (if any)
     if (oldFocusedElement) {
-        ASSERT(!oldFocusedElement->inDetach());
-
         if (oldFocusedElement->active())
             oldFocusedElement->setActive(false);
 
         oldFocusedElement->setFocus(false);
 
         // Dispatch the blur event and let the node do any other blur related activities (important for text fields)
         // If page lost focus, blur event will have already been dispatched
         if (page() && (page()->focusController().isFocused())) {
             oldFocusedElement->dispatchBlurEvent(newFocusedElement.get());
 
@@ skipping 964 matching lines @@
 using namespace blink;
 void showLiveDocumentInstances()
 {
     WeakDocumentSet& set = liveDocumentSet();
     fprintf(stderr, "There are %u documents currently alive:\n", set.size());
     for (WeakDocumentSet::const_iterator it = set.begin(); it != set.end(); ++it) {
         fprintf(stderr, "- Document %p URL: %s\n", *it, (*it)->url().string().utf8().data());
     }
 }
 #endif