Introduce NodeTraversal::ancestorsOf() and inclusiveAncestors() for range-based for loop

third_party/WebKit/Source/core/editing/commands/CompositeEditCommand.cpp

 /*
  * Copyright (C) 2005, 2006, 2007, 2008 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 1058 matching lines @@
         lastNode = outerNode->cloneNode(isDisplayInsideTable(outerNode));
         appendNode(lastNode, blockElement, editingState);
         if (editingState->isAborted())
             return;
     }
 
     if (start.anchorNode() != outerNode && lastNode->isElementNode() && start.anchorNode()->isDescendantOf(outerNode)) {
         HeapVector<Member<Node>> ancestors;
 
         // Insert each node from innerNode to outerNode (excluded) in a list.
-        for (Node* n = start.anchorNode(); n && n != outerNode; n = n->parentNode())
-            ancestors.append(n);
+        for (Node& runner : NodeTraversal::inclusiveAncestorsOf(*start.anchorNode())) {
+            if (runner == outerNode)
+                break;
+            ancestors.append(runner);
+        }
 
         // Clone every node between start.anchorNode() and outerBlock.
 
         for (size_t i = ancestors.size(); i != 0; --i) {
             Node* item = ancestors[i - 1].get();
             Node* child = item->cloneNode(isDisplayInsideTable(item));
             appendNode(child, toElement(lastNode), editingState);
             if (editingState->isAborted())
                 return;
             lastNode = child;
@@ skipping 523 matching lines @@
 }
 
 DEFINE_TRACE(CompositeEditCommand)
 {
     visitor->trace(m_commands);
     visitor->trace(m_composition);
     EditCommand::trace(visitor);
 }
 
 } // namespace blink