Remove some dead code in dom/

Source/core/dom/Position.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2009 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 486 matching lines @@
         if (atStartOfLine || !rendered) {
             if (currentPos.isCandidate())
                 return currentPos;
         } else if (rendersInDifferentPosition(currentPos))
             return currentPos;
     }
 
     return *this;
 }
 
-// return first following position rendered at a different location, or "this"
-Position Position::nextCharacterPosition(EAffinity affinity) const
-{
-    if (isNull())
-        return Position();
-
-    Node* fromRootEditableElement = deprecatedNode()->rootEditableElement();
-
-    bool atEndOfLine = isEndOfLine(VisiblePosition(*this, affinity));
-    bool rendered = isCandidate();
-
-    Position currentPos = *this;
-    while (!currentPos.atEndOfTree()) {
-        currentPos = currentPos.next();
-
-        if (currentPos.deprecatedNode()->rootEditableElement() != fromRootEditableElement)
-            return *this;
-
-        if (atEndOfLine || !rendered) {
-            if (currentPos.isCandidate())
-                return currentPos;
-        } else if (rendersInDifferentPosition(currentPos))
-            return currentPos;
-    }
-
-    return *this;
-}
-
 // Whether or not [node, 0] and [node, lastOffsetForEditing(node)] are their own VisiblePositions.
 // If true, adjacent candidates are visually distinct.
 // FIXME: Disregard nodes with renderers that have no height, as we do in isCandidate.
 // FIXME: Share code with isCandidate, if possible.
 static bool endsOfNodeAreVisuallyDistinctPositions(Node* node)
 {
     if (!node || !node->renderer())
         return false;
 
     if (!node->renderer()->isInline())
@@ skipping 843 matching lines @@
     pos.showTreeForThis();
 }
 
 void showTree(const WebCore::Position* pos)
 {
     if (pos)
         pos->showTreeForThis();
 }
 
 #endif