Have positionInParentBeforeNode() / positionInParentAfterNode() take a reference

Source/core/editing/FormatBlockCommand.cpp

 /*
  * Copyright (C) 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 55 matching lines @@
     // Root is null for elements with contenteditable=false.
     if (!root || !refNode)
         return;
 
     Node* nodeToSplitTo = enclosingBlockToSplitTreeTo(start.deprecatedNode());
     RefPtr<Node> outerBlock = (start.deprecatedNode() == nodeToSplitTo) ? start.deprecatedNode() : splitTreeToNode(start.deprecatedNode(), nodeToSplitTo);
     RefPtr<Node> nodeAfterInsertionPosition = outerBlock;
     RefPtr<Range> range = Range::create(document(), start, endOfSelection);
 
     if (isElementForFormatBlock(refNode->tagQName()) && VisiblePosition(start) == startOfBlock(VisiblePosition(start))
-        && (VisiblePosition(end) == endOfBlock(VisiblePosition(end)) || isNodeVisiblyContainedWithin(refNode, range.get()))
+        && (VisiblePosition(end) == endOfBlock(VisiblePosition(end)) || isNodeVisiblyContainedWithin(*refNode, *range))
         && refNode != root && !root->isDescendantOf(refNode)) {
         // Already in a block element that only contains the current paragraph
         if (refNode->hasTagName(tagName()))
             return;
         nodeAfterInsertionPosition = refNode;
     }
 
     if (!blockNode) {
         // Create a new blockquote and insert it as a child of the root editable element. We accomplish
         // this by splitting all parents of the current paragraph up to that point.
@@ skipping 73 matching lines @@
             return n;
         if (isBlock(n))
             lastBlock = n;
         if (isListElement(n))
             return n->parentNode()->rendererIsEditable() ? n->parentNode() : n;
     }
     return lastBlock;
 }
 
 }