Have Position deal with more references

Source/core/editing/htmlediting.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007 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 250 matching lines @@
     if (comparePositions(position, firstPositionInNode(highestRoot)) == -1 && highestRoot->rendererIsEditable())
         return VisiblePosition(firstPositionInNode(highestRoot));
 
     Position p = position;
 
     if (position.deprecatedNode()->treeScope() != highestRoot->treeScope()) {
         Node* shadowAncestor = highestRoot->treeScope().ancestorInThisScope(p.deprecatedNode());
         if (!shadowAncestor)
             return VisiblePosition();
 
-        p = positionAfterNode(shadowAncestor);
+        p = positionAfterNode(*shadowAncestor);
     }
 
     while (p.deprecatedNode() && !isEditablePosition(p) && p.deprecatedNode()->isDescendantOf(highestRoot))
         p = isAtomicNode(p.deprecatedNode()) ? positionInParentAfterNode(*p.deprecatedNode()) : nextVisuallyDistinctCandidate(p);
 
     if (p.deprecatedNode() && p.deprecatedNode() != highestRoot && !p.deprecatedNode()->isDescendantOf(highestRoot))
         return VisiblePosition();
 
     return VisiblePosition(p);
 }
@@ skipping 832 matching lines @@
     // if the selection starts just before a paragraph break, skip over it
     if (isEndOfParagraph(visiblePosition))
         return visiblePosition.next().deepEquivalent().downstream();
 
     // otherwise, make sure to be at the start of the first selected node,
     // instead of possibly at the end of the last node before the selection
     return visiblePosition.deepEquivalent().downstream();
 }
 
 } // namespace WebCore