Introduce PositionAlgorithm<Strategy>::editingPositionOf()

Source/core/editing/Position.h

Index: Source/core/editing/Position.h
diff --git a/Source/core/editing/Position.h b/Source/core/editing/Position.h
index 496e35502d612574739363db7b17ee3503092e6b..ccfe9ac3736834ed53f57d5ae87db2e8c6e4fbe7 100644
--- a/Source/core/editing/Position.h
+++ b/Source/core/editing/Position.h
@@ -88,7 +88,7 @@ public:
     }
 
     static const TreeScope* commonAncestorTreeScope(const PositionAlgorithm<Strategy>&, const PositionAlgorithm<Strategy>& b);
-    static PositionAlgorithm<Strategy> createLegacyEditingPosition(PassRefPtrWillBeRawPtr<Node> anchorNode, int offset);
+    static PositionAlgorithm<Strategy> editingPositionOf(PassRefPtrWillBeRawPtr<Node> anchorNode, int offset);
 
     // For creating before/after positions:
     PositionAlgorithm(PassRefPtrWillBeRawPtr<Node> anchorNode, PositionAnchorType);
@@ -258,11 +258,6 @@ extern template class CORE_EXTERN_TEMPLATE_EXPORT PositionAlgorithm<EditingInCom
 using Position = PositionAlgorithm<EditingStrategy>;
 using PositionInComposedTree = PositionAlgorithm<EditingInComposedTreeStrategy>;
 
-inline Position createLegacyEditingPosition(PassRefPtrWillBeRawPtr<Node> node, int offset)
-{
-    return Position::createLegacyEditingPosition(node, offset);
-}
-
 template <typename Strategy>
 bool operator==(const PositionAlgorithm<Strategy>& a, const PositionAlgorithm<Strategy>& b)
 {