Make AttachBehavior a required argument.

Source/core/html/track/TextTrackCue.cpp

 /*
  * Copyright (C) 2011 Google Inc.  All rights reserved.
  * Copyright (C) 2011, 2012, 2013 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
@@ skipping 488 matching lines @@
 }
 
 void TextTrackCue::copyWebVTTNodeToDOMTree(ContainerNode* webVTTNode, ContainerNode* parent)
 {
     for (Node* node = webVTTNode->firstChild(); node; node = node->nextSibling()) {
         RefPtr<Node> clonedNode;
         if (node->isWebVTTElement())
             clonedNode = toWebVTTElement(node)->createEquivalentHTMLElement(ownerDocument());
         else
             clonedNode = node->cloneNode(false);
-        parent->appendChild(clonedNode, ASSERT_NO_EXCEPTION);
+        parent->appendChild(clonedNode, ASSERT_NO_EXCEPTION, DeprecatedAttachNow);
         if (node->isContainerNode())
             copyWebVTTNodeToDOMTree(toContainerNode(node), toContainerNode(clonedNode.get()));
     }
 }
 
 PassRefPtr<DocumentFragment> TextTrackCue::getCueAsHTML()
 {
     createWebVTTNodeTree();
     RefPtr<DocumentFragment> clonedFragment = DocumentFragment::create(ownerDocument());
     copyWebVTTNodeToDOMTree(m_webVTTNodeTree.get(), clonedFragment.get());
@@ skipping 253 matching lines @@
 
     if (!track()->isRendered())
       return;
 
     // Clear the contents of the set.
     m_cueBackgroundBox->removeChildren();
 
     // Update the two sets containing past and future WebVTT objects.
     RefPtr<DocumentFragment> referenceTree = createCueRenderingTree();
     markFutureAndPastNodes(referenceTree.get(), startTime(), movieTime);
-    m_cueBackgroundBox->appendChild(referenceTree);
+    m_cueBackgroundBox->appendChild(referenceTree, ASSERT_NO_EXCEPTION, DeprecatedAttachNow);
 }
 
 PassRefPtr<TextTrackCueBox> TextTrackCue::getDisplayTree(const IntSize& videoSize)
 {
     RefPtr<TextTrackCueBox> displayTree = displayTreeInternal();
     if (!m_displayTreeShouldChange || !track()->isRendered())
         return displayTree;
 
     // 10.1 - 10.10
     calculateDisplayParameters();
@@ skipping 389 matching lines @@
         return false;
     if (m_cueSize != cue.size())
         return false;
     if (align() != cue.align())
         return false;
 
     return true;
 }
 
 } // namespace WebCore