Have positionInParentBeforeNode() / positionInParentAfterNode() take a reference

Source/core/dom/Position.cpp

Index: Source/core/dom/Position.cpp
diff --git a/Source/core/dom/Position.cpp b/Source/core/dom/Position.cpp
index 0f5174d0040b263bfc12544805da1a9b560836db..c08a67c3559579812606ec813f61a4ce43794ea4 100644
--- a/Source/core/dom/Position.cpp
+++ b/Source/core/dom/Position.cpp
@@ -210,14 +210,14 @@ Position Position::parentAnchoredEquivalent() const
     // FIXME: This should only be necessary for legacy positions, but is also needed for positions before and after Tables
     if (m_offset <= 0 && (m_anchorType != PositionIsAfterAnchor && m_anchorType != PositionIsAfterChildren)) {
         if (m_anchorNode->parentNode() && (editingIgnoresContent(m_anchorNode.get()) || isRenderedTableElement(m_anchorNode.get())))
-            return positionInParentBeforeNode(m_anchorNode.get());
+            return positionInParentBeforeNode(*m_anchorNode);
         return Position(m_anchorNode.get(), 0, PositionIsOffsetInAnchor);
     }
     if (!m_anchorNode->offsetInCharacters()
         && (m_anchorType == PositionIsAfterAnchor || m_anchorType == PositionIsAfterChildren || static_cast<unsigned>(m_offset) == m_anchorNode->countChildren())
         && (editingIgnoresContent(m_anchorNode.get()) || isRenderedTableElement(m_anchorNode.get()))
         && containerNode()) {
-        return positionInParentAfterNode(m_anchorNode.get());
+        return positionInParentAfterNode(*m_anchorNode);
     }
 
     return Position(containerNode(), computeOffsetInContainerNode(), PositionIsOffsetInAnchor);