Have ElementTraversal / NodeTraversal's next() methods take a reference

Source/core/editing/InsertParagraphSeparatorCommand.cpp

 /*
  * Copyright (C) 2005, 2006 Apple Computer, 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 377 matching lines @@
         appendNode(createBreakElement(document()).get(), blockToInsert.get());
 
     // Move the start node and the siblings of the start node.
     if (VisiblePosition(insertionPosition) != VisiblePosition(positionBeforeNode(blockToInsert.get()))) {
         Node* n;
         if (insertionPosition.containerNode() == startBlock)
             n = insertionPosition.computeNodeAfterPosition();
         else {
             Node* splitTo = insertionPosition.containerNode();
             if (splitTo->isTextNode() && insertionPosition.offsetInContainerNode() >= caretMaxOffset(splitTo))
-                splitTo = NodeTraversal::next(splitTo, startBlock.get());
+                splitTo = NodeTraversal::next(*splitTo, startBlock.get());
             ASSERT(splitTo);
             splitTreeToNode(splitTo, startBlock.get());
 
             for (n = startBlock->firstChild(); n; n = n->nextSibling()) {
                 VisiblePosition beforeNodePosition = positionBeforeNode(n);
                 if (!beforeNodePosition.isNull() && comparePositions(VisiblePosition(insertionPosition), beforeNodePosition) <= 0)
                     break;
             }
         }
 
@@ skipping 10 matching lines @@
             if (positionAfterSplit.deprecatedNode()->isTextNode())
                 insertTextIntoNode(toText(positionAfterSplit.containerNode()), 0, nonBreakingSpaceString());
         }
     }
 
     setEndingSelection(VisibleSelection(firstPositionInNode(blockToInsert.get()), DOWNSTREAM, endingSelection().isDirectional()));
     applyStyleAfterInsertion(startBlock.get());
 }
 
 } // namespace WebCore