Have positionInParentBeforeNode() / positionInParentAfterNode() take a reference

Source/core/editing/FrameSelection.cpp

 /*
  * Copyright (C) 2004, 2008, 2009, 2010 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 307 matching lines @@
 {
     ASSERT(node.document().isActive());
 
     bool clearRenderTreeSelection = false;
     bool clearDOMTreeSelection = false;
 
     if (startRemoved || endRemoved) {
         Position start = m_selection.start();
         Position end = m_selection.end();
         if (startRemoved)
-            updatePositionForNodeRemoval(start, &node);
+            updatePositionForNodeRemoval(start, node);
         if (endRemoved)
-            updatePositionForNodeRemoval(end, &node);
+            updatePositionForNodeRemoval(end, node);
 
         if (start.isNotNull() && end.isNotNull()) {
             if (m_selection.isBaseFirst())
                 m_selection.setWithoutValidation(start, end);
             else
                 m_selection.setWithoutValidation(end, start);
         } else
             clearDOMTreeSelection = true;
 
         clearRenderTreeSelection = true;
@@ skipping 1489 matching lines @@
     sel.showTreeForThis();
 }
 
 void showTree(const WebCore::FrameSelection* sel)
 {
     if (sel)
         sel->showTreeForThis();
 }
 
 #endif