Templatize FrameSelection::setNonDirectionalSelectionIfNeede function

Source/core/editing/FrameSelection.h

Index: Source/core/editing/FrameSelection.h
diff --git a/Source/core/editing/FrameSelection.h b/Source/core/editing/FrameSelection.h
index 58e37af134f85d9e1ab95d2efa935feae2d14ffb..7a5d90cb0ed6e805a694e697a4f12aa8d79014d6 100644
--- a/Source/core/editing/FrameSelection.h
+++ b/Source/core/editing/FrameSelection.h
@@ -237,6 +237,9 @@ private:
 
     enum EPositionType { START, END, BASE, EXTENT };
 
+    template <typename Strategy>
+    void setNonDirectionalSelectionIfNeededAlgorithm(const VisibleSelection&, TextGranularity, EndPointsAdjustmentMode);
+
     void respondToNodeModification(Node&, bool baseRemoved, bool extentRemoved, bool startRemoved, bool endRemoved);
     TextDirection directionOfEnclosingBlock();
     TextDirection directionOfSelection();