Revert of Have Position deal with more references

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 572 matching lines @@
         bool movingBackwardsMovedPositionToStartOfCurrentWord = positionAfterCurrentWord == previousWordPosition(nextWordPosition(originalPosition));
         if (movingBackwardsMovedPositionToStartOfCurrentWord)
             positionAfterCurrentWord = positionAfterSpacingAndFollowingWord;
     }
     return positionAfterCurrentWord;
 }
 
 static void adjustPositionForUserSelectAll(VisiblePosition& pos, bool isForward)
 {
     if (Node* rootUserSelectAll = Position::rootUserSelectAllForNode(pos.deepEquivalent().anchorNode()))
-        pos = VisiblePosition(isForward ? positionAfterNode(*rootUserSelectAll).downstream(CanCrossEditingBoundary) : positionBeforeNode(*rootUserSelectAll).upstream(CanCrossEditingBoundary));
+        pos = VisiblePosition(isForward ? positionAfterNode(rootUserSelectAll).downstream(CanCrossEditingBoundary) : positionBeforeNode(rootUserSelectAll).upstream(CanCrossEditingBoundary));
 }
 
 VisiblePosition FrameSelection::modifyExtendingRight(TextGranularity granularity)
 {
     VisiblePosition pos(m_selection.extent(), m_selection.affinity());
 
     // The difference between modifyExtendingRight and modifyExtendingForward is:
     // modifyExtendingForward always extends forward logically.
     // modifyExtendingRight behaves the same as modifyExtendingForward except for extending character or word,
     // it extends forward logically if the enclosing block is LTR direction,
@@ skipping 1226 matching lines @@
     sel.showTreeForThis();
 }
 
 void showTree(const WebCore::FrameSelection* sel)
 {
     if (sel)
         sel->showTreeForThis();
 }
 
 #endif