Deleted Widget/FrameViewBase

third_party/WebKit/Source/core/layout/LayoutScrollbar.h

 /*
  * Copyright (C) 2008, 2009 Apple Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 59 matching lines @@
   void SetVisualRect(const LayoutRect&) final;
 
   DECLARE_VIRTUAL_TRACE();
 
  protected:
   LayoutScrollbar(ScrollableArea*, ScrollbarOrientation, Element*);
 
  private:
   friend class Scrollbar;
 
-  void SetParent(FrameViewBase*) override;
   void SetEnabled(bool) override;
+  void DisconnectFromScrollableArea() override;
 
   void SetHoveredPart(ScrollbarPart) override;
   void SetPressedPart(ScrollbarPart) override;
 
   void StyleChanged() override;
 
   bool IsCustomScrollbar() const override { return true; }
 
   void UpdateScrollbarParts(bool destroy = false);
 
   PassRefPtr<ComputedStyle> GetScrollbarPseudoStyle(ScrollbarPart, PseudoId);
   void UpdateScrollbarPart(ScrollbarPart, bool destroy = false);
 
   // The element that supplies our style information.
   Member<Element> style_source_;
 
   HashMap<unsigned, LayoutScrollbarPart*> parts_;
 };
 
 DEFINE_TYPE_CASTS(LayoutScrollbar,
                   ScrollbarThemeClient,
                   scrollbar,
                   scrollbar->IsCustomScrollbar(),
                   scrollbar.IsCustomScrollbar());
 
 }  // namespace blink
 
 #endif  // LayoutScrollbar_h