Make LayoutSelection::SetSelection() local

third_party/WebKit/Source/core/editing/LayoutSelection.h

Index: third_party/WebKit/Source/core/editing/LayoutSelection.h
diff --git a/third_party/WebKit/Source/core/editing/LayoutSelection.h b/third_party/WebKit/Source/core/editing/LayoutSelection.h
index 7005099327dad10716a60144cb4403e5f6933b65..253275660843da4575402697e35a0a9115120ecc 100644
--- a/third_party/WebKit/Source/core/editing/LayoutSelection.h
+++ b/third_party/WebKit/Source/core/editing/LayoutSelection.h
@@ -78,13 +78,7 @@ class LayoutSelection final : public GarbageCollected<LayoutSelection> {
 
   IntRect SelectionBounds();
   void InvalidatePaintForSelection();
-  enum SelectionPaintInvalidationMode {
-    kPaintInvalidationNewXOROld,
-    kPaintInvalidationNewMinusOld
-  };
-  void SetSelection(
-      const SelectionPaintRange&,
-      SelectionPaintInvalidationMode = kPaintInvalidationNewXOROld);
+
   void ClearSelection();
   std::pair<int, int> SelectionStartEnd();
   void OnDocumentShutdown();