[CodeHealth] Use Position::anchorNode instead of deprecatedNode.

Source/core/layout/LayoutObject.cpp

Index: Source/core/layout/LayoutObject.cpp
diff --git a/Source/core/layout/LayoutObject.cpp b/Source/core/layout/LayoutObject.cpp
index 4b85023fd7fd3510d65468c96ff69f8cfa548377..13f8343c20998dfcb8d05b322a80d9d8ac0b7d04 100644
--- a/Source/core/layout/LayoutObject.cpp
+++ b/Source/core/layout/LayoutObject.cpp
@@ -2952,10 +2952,10 @@ PositionWithAffinity LayoutObject::createPositionWithAffinity(int offset, EAffin
             // If it can be found, we prefer a visually equivalent position that is editable.
             Position position = createLegacyEditingPosition(node, offset);
             Position candidate = position.downstream(CanCrossEditingBoundary);
-            if (candidate.deprecatedNode()->hasEditableStyle())
+            if (candidate.anchorNode()->hasEditableStyle())
                 return PositionWithAffinity(candidate, affinity);
             candidate = position.upstream(CanCrossEditingBoundary);
-            if (candidate.deprecatedNode()->hasEditableStyle())
+            if (candidate.anchorNode()->hasEditableStyle())
                 return PositionWithAffinity(candidate, affinity);
         }
         // FIXME: Eliminate legacy editing positions