Remove a lot of dead Scrollbar methods.

sky/engine/platform/scroll/Scrollbar.h

 /*
  * Copyright (C) 2004, 2006 Apple Computer, 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 23 matching lines @@
 #include "wtf/PassRefPtr.h"
 
 namespace blink {
 
 class GraphicsContext;
 class IntRect;
 class PlatformGestureEvent;
 class PlatformMouseEvent;
 class ScrollableArea;
 
-class PLATFORM_EXPORT Scrollbar : public Widget {
-
+class PLATFORM_EXPORT Scrollbar final : public Widget {
 public:
     static PassRefPtr<Scrollbar> create(ScrollableArea*, ScrollbarOrientation);
 
     virtual ~Scrollbar();
 
-    int x() const { return Widget::x(); }
-    int y() const { return Widget::y(); }
-    int width() const { return Widget::width(); }
-    int height() const { return Widget::height(); }
-    IntSize size() const { return Widget::size(); }
-    IntPoint location() const { return Widget::location(); }
-
-    Widget* parent() const { return Widget::parent(); }
-    Widget* root() const { return Widget::root(); }
-
-    void setFrameRect(const IntRect& r) { Widget::setFrameRect(r); }
-    IntRect frameRect() const { return Widget::frameRect(); }
-
-    void invalidate() { Widget::invalidate(); }
     void invalidateRect(const IntRect&);
 
     ScrollbarOverlayStyle scrollbarOverlayStyle() const;
     void getTickmarks(Vector<IntRect>&) const;
     bool isScrollableAreaActive() const;
-    bool isScrollViewScrollbar() const;
 
-    IntPoint convertFromContainingWindow(const IntPoint& windowPoint) { return Widget::convertFromContainingWindow(windowPoint); }
-
-    bool isCustomScrollbar() const { return false; }
     ScrollbarOrientation orientation() const { return m_orientation; }
     bool isLeftSideVerticalScrollbar() const;
 
     int value() const { return lroundf(m_currentPos); }
     float currentPos() const { return m_currentPos; }
     int visibleSize() const { return m_visibleSize; }
     int totalSize() const { return m_totalSize; }
     int maximum() const { return m_totalSize - m_visibleSize; }
 
     ScrollbarPart pressedPart() const { return m_pressedPart; }
     ScrollbarPart hoveredPart() const { return m_hoveredPart; }
 
-    void styleChanged() { }
-
     bool enabled() const { return m_enabled; }
     void setEnabled(bool);
 
     // Called by the ScrollableArea when the scroll offset changes.
     void offsetDidChange();
 
     void disconnectFromScrollableArea() { m_scrollableArea = 0; }
     ScrollableArea* scrollableArea() const { return m_scrollableArea; }
 
     int pressedPos() const { return m_pressedPos; }
 
-    virtual void setHoveredPart(ScrollbarPart);
-    virtual void setPressedPart(ScrollbarPart);
+    void setHoveredPart(ScrollbarPart);
+    void setPressedPart(ScrollbarPart);
 
     void setProportion(int visibleSize, int totalSize);
     void setPressedPos(int p) { m_pressedPos = p; }
 
     virtual void paint(GraphicsContext*, const IntRect& damageRect) override;
 
     bool isOverlayScrollbar() const;
     bool shouldParticipateInHitTesting();
 
-    bool isWindowActive() const;
-
     bool gestureEvent(const PlatformGestureEvent&);
 
     // These methods are used for platform scrollbars to give :hover feedback.  They will not get called
     // when the mouse went down in a scrollbar, since it is assumed the scrollbar will start
     // grabbing all events in that case anyway.
     void mouseMoved(const PlatformMouseEvent&);
     void mouseEntered();
     void mouseExited();
 
     // Used by some platform scrollbars to know when they've been released from capture.
     void mouseUp(const PlatformMouseEvent&);
     void mouseDown(const PlatformMouseEvent&);
 
-    // FIXME(sky): Remove this.
-    Scrollbar* theme() { return this; }
-
-    bool suppressInvalidation() const { return m_suppressInvalidation; }
-    void setSuppressInvalidation(bool s) { m_suppressInvalidation = s; }
-
     virtual IntRect convertToContainingView(const IntRect&) const override;
     virtual IntRect convertFromContainingView(const IntRect&) const override;
 
     virtual IntPoint convertToContainingView(const IntPoint&) const override;
     virtual IntPoint convertFromContainingView(const IntPoint&) const override;
 
     void moveThumb(int pos);
 
-    bool isAlphaLocked() const { return m_isAlphaLocked; }
-    void setIsAlphaLocked(bool flag) { m_isAlphaLocked = flag; }
-
     static int scrollbarThickness();
 
     void invalidateParts()
     {
         invalidatePart(BackTrackPart);
         invalidatePart(ThumbPart);
         invalidatePart(ForwardTrackPart);
     }
 
     void invalidatePart(ScrollbarPart);
 
     static void paintScrollCorner(GraphicsContext*, const IntRect& cornerRect);
 
-    static void paintOverhangBackground(GraphicsContext*, const IntRect&, const IntRect&, const IntRect&);
-
     bool shouldCenterOnThumb(const PlatformMouseEvent&);
     bool shouldSnapBackToDragOrigin(const PlatformMouseEvent&);
 
     // The position of the thumb relative to the track.
     int thumbPosition();
     // The length of the thumb along the axis of the scrollbar.
     int thumbLength();
     // The position of the track relative to the scrollbar.
     int trackPosition();
     // The length of the track along the axis of the scrollbar.
     int trackLength();
 
     IntRect trackRect();
     IntRect thumbRect();
     int thumbThickness();
 
     int minimumThumbLength();
 
     void splitTrack(const IntRect& track, IntRect& startTrack, IntRect& thumb, IntRect& endTrack);
 
     void paintThumb(GraphicsContext*, const IntRect&);
 
     double initialAutoscrollTimerDelay() { return 0.25; }
     double autoscrollTimerDelay() { return 0.05; }
 
 protected:
     Scrollbar(ScrollableArea*, ScrollbarOrientation);
 
     void updateThumb();
-    virtual void updateThumbPosition();
-    virtual void updateThumbProportion();
 
     void autoscrollTimerFired(Timer<Scrollbar>*);
     void startTimerIfNeeded(double delay);
     void stopTimerIfNeeded();
     void autoscrollPressedPart(double delay);
     ScrollDirection pressedPartScrollDirection();
     ScrollGranularity pressedPartScrollGranularity();
 
     ScrollableArea* m_scrollableArea;
     ScrollbarOrientation m_orientation;
 
     int m_visibleSize;
     int m_totalSize;
     float m_currentPos;
     float m_dragOrigin;
 
     ScrollbarPart m_hoveredPart;
     ScrollbarPart m_pressedPart;
     int m_pressedPos;
     float m_scrollPos;
     int m_documentDragPos;
 
     bool m_enabled;
 
     Timer<Scrollbar> m_scrollTimer;
     bool m_overlapsResizer;
 
-    bool m_suppressInvalidation;
-
-    bool m_isAlphaLocked;
-
 private:
     virtual bool isScrollbar() const override { return true; }
 
     float scrollableAreaCurrentPos() const;
 };
 
 DEFINE_TYPE_CASTS(Scrollbar, Widget, widget, widget->isScrollbar(), widget.isScrollbar());
 
 } // namespace blink
 
 #endif // Scrollbar_h