Rename duplicate symbols inside core/dom

third_party/WebKit/Source/core/dom/shadow/FlatTreeTraversal.cpp

 /*
  * Copyright (C) 2012 Google 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.
  *     * Neither the name of Google Inc. nor the names of its
@@ skipping 270 matching lines @@
   }
   return false;
 }
 
 Node* FlatTreeTraversal::previousSkippingChildren(const Node& node) {
   if (Node* previousSibling = traversePreviousSibling(node))
     return previousSibling;
   return traversePreviousAncestorSibling(node);
 }
 
-static Node* previousAncestorSiblingPostOrder(const Node& current,
-                                              const Node* stayWithin) {
+Node* FlatTreeTraversal::previousAncestorSiblingPostOrder(
+    const Node& current,
+    const Node* stayWithin) {
   DCHECK(!FlatTreeTraversal::previousSibling(current));
   for (Node* parent = FlatTreeTraversal::parent(current); parent;
        parent = FlatTreeTraversal::parent(*parent)) {
     if (parent == stayWithin)
       return nullptr;
     if (Node* previousSibling = FlatTreeTraversal::previousSibling(*parent))
       return previousSibling;
   }
   return nullptr;
 }
@@ skipping 89 matching lines @@
 
 Node& FlatTreeTraversal::lastWithinOrSelf(const Node& node) {
   assertPrecondition(node);
   Node* lastDescendant = lastWithin(node);
   Node& result = lastDescendant ? *lastDescendant : const_cast<Node&>(node);
   assertPostcondition(&result);
   return result;
 }
 
 }  // namespace blink