WebScrollbarThemeClientImpl should not be DisplayItemClient

third_party/WebKit/Source/platform/scroll/ScrollbarThemeMac.h

 /*
  * Copyright (C) 2008 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 32 matching lines @@
 
     void registerScrollbar(ScrollbarThemeClient&) override;
     void unregisterScrollbar(ScrollbarThemeClient&) override;
     void preferencesChanged(float initialButtonDelay, float autoscrollButtonDelay, NSScrollerStyle preferredScrollerStyle, bool redraw, WebScrollbarButtonsPlacement);
 
     bool supportsControlTints() const override { return true; }
 
     double initialAutoscrollTimerDelay() override;
     double autoscrollTimerDelay() override;
 
-    void paintTickmarks(GraphicsContext&, const ScrollbarThemeClient&, const IntRect&) override;
+    void paintTickmarks(GraphicsContext&, const Scrollbar&, const IntRect&) override;
 
     bool shouldRepaintAllPartsOnInvalidation() const override { return false; }
     ScrollbarPart invalidateOnThumbPositionChange(
         const ScrollbarThemeClient&, float oldPosition, float newPosition) const override;
     void updateEnabledState(const ScrollbarThemeClient&) override;
     int scrollbarThickness(ScrollbarControlSize = RegularScrollbar) override;
     bool usesOverlayScrollbars() const override;
     void updateScrollbarOverlayStyle(const ScrollbarThemeClient&) override;
     WebScrollbarButtonsPlacement buttonsPlacement() const override;
 
     void setNewPainterForScrollbar(ScrollbarThemeClient&, ScrollbarPainter);
     ScrollbarPainter painterForScrollbar(const ScrollbarThemeClient&) const;
 
-    void paintTrackBackground(GraphicsContext&, const ScrollbarThemeClient&, const IntRect&) override;
-    void paintThumb(GraphicsContext&, const ScrollbarThemeClient&, const IntRect&) override;
+    void paintTrackBackground(GraphicsContext&, const Scrollbar&, const IntRect&) override;
+    void paintThumb(GraphicsContext&, const Scrollbar&, const IntRect&) override;
 
     float thumbOpacity(const ScrollbarThemeClient&) const override;
 
     static NSScrollerStyle recommendedScrollerStyle();
 
 protected:
     int maxOverlapBetweenPages() override { return 40; }
 
     bool shouldDragDocumentInsteadOfThumb(const ScrollbarThemeClient&, const PlatformMouseEvent&) override;
     int scrollbarPartToHIPressedState(ScrollbarPart);
 
     virtual void updateButtonPlacement(WebScrollbarButtonsPlacement) {}
 
-    void paintGivenTickmarks(SkCanvas*, const ScrollbarThemeClient&, const IntRect&, const Vector<IntRect>&);
+    void paintGivenTickmarks(SkCanvas*, const Scrollbar&, const IntRect&, const Vector<IntRect>&);
 
     IntRect trackRect(const ScrollbarThemeClient&, bool painting = false) override;
     IntRect backButtonRect(const ScrollbarThemeClient&, ScrollbarPart, bool painting = false) override;
     IntRect forwardButtonRect(const ScrollbarThemeClient&, ScrollbarPart, bool painting = false) override;
 
     bool hasButtons(const ScrollbarThemeClient&) override { return false; }
     bool hasThumb(const ScrollbarThemeClient&) override;
 
     int minimumThumbLength(const ScrollbarThemeClient&) override;
 
     RefPtr<Pattern> m_overhangPattern;
 };
 
 }
 
 #endif // ScrollbarThemeMac_h