Have positionInParentBeforeNode() / positionInParentAfterNode() 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 295 matching lines @@
     //---------------------------------------------------------------------
     // Handle the (more complicated) general case,
 
     // All of the content in the current block after visiblePos is
     // about to be wrapped in a new paragraph element.  Add a br before
     // it if visiblePos is at the start of a paragraph so that the
     // content will move down a line.
     if (isStartOfParagraph(visiblePos)) {
         RefPtr<Element> br = createBreakElement(document());
         insertNodeAt(br.get(), insertionPosition);
-        insertionPosition = positionInParentAfterNode(br.get());
+        insertionPosition = positionInParentAfterNode(*br);
         // If the insertion point is a break element, there is nothing else
         // we need to do.
         if (visiblePos.deepEquivalent().anchorNode()->renderer()->isBR()) {
             setEndingSelection(VisibleSelection(insertionPosition, DOWNSTREAM, endingSelection().isDirectional()));
             return;
         }
     }
 
     // Move downstream. Typing style code will take care of carrying along the
     // style of the upstream position.
@@ skipping 92 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