Have DOMPatchSupport and DocumentFragment deal with Document references

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 498 matching lines @@
             clonedNode = node->cloneNode(false);
         parent->appendChild(clonedNode);
         if (node->isContainerNode())
             copyWebVTTNodeToDOMTree(toContainerNode(node), toContainerNode(clonedNode.get()));
     }
 }
 
 PassRefPtr<DocumentFragment> TextTrackCue::getCueAsHTML()
 {
     createWebVTTNodeTree();
-    RefPtr<DocumentFragment> clonedFragment = DocumentFragment::create(ownerDocument());
+    RefPtr<DocumentFragment> clonedFragment = DocumentFragment::create(*ownerDocument());
     copyWebVTTNodeToDOMTree(m_webVTTNodeTree.get(), clonedFragment.get());
     return clonedFragment.release();
 }
 
 PassRefPtr<DocumentFragment> TextTrackCue::createCueRenderingTree()
 {
     RefPtr<DocumentFragment> clonedFragment;
     createWebVTTNodeTree();
-    clonedFragment = DocumentFragment::create(ownerDocument());
+    clonedFragment = DocumentFragment::create(*ownerDocument());
     m_webVTTNodeTree->cloneChildNodes(clonedFragment.get());
     return clonedFragment.release();
 }
 
 bool TextTrackCue::dispatchEvent(PassRefPtr<Event> event)
 {
     // When a TextTrack's mode is disabled: no cues are active, no events fired.
     if (!track() || track()->mode() == TextTrack::disabledKeyword())
         return false;
 
@@ skipping 645 matching lines @@
         return false;
     if (m_cueSize != cue.size())
         return false;
     if (align() != cue.align())
         return false;
 
     return true;
 }
 
 } // namespace WebCore