Remove more frame-level scrolling machinery.

sky/engine/core/frame/FrameView.h

 /*
    Copyright (C) 1997 Martin Jones (mjones@kde.org)
              (C) 1998 Waldo Bastian (bastian@kde.org)
              (C) 1998, 1999 Torben Weis (weis@kde.org)
              (C) 1999 Lars Knoll (knoll@kde.org)
              (C) 1999 Antti Koivisto (koivisto@kde.org)
    Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
 
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
@@ skipping 201 matching lines @@
     // FIXME(sky): remove
     IntRect contentsToScreen(const IntRect& rect) const;
     IntPoint contentsToRootView(const IntPoint& contentsPoint) const { return convertToRootView(contentsPoint); }
     IntRect contentsToRootView(const IntRect& contentsRect) const { return convertToRootView(contentsRect); }
     IntRect rootViewToContents(const IntRect& rootViewRect) const { return convertFromRootView(rootViewRect); }
     IntPoint windowToContents(const IntPoint& windowPoint) const { return convertFromContainingWindow(windowPoint); }
     FloatPoint windowToContents(const FloatPoint& windowPoint) const { return convertFromContainingWindow(windowPoint); }
     IntPoint contentsToWindow(const IntPoint& contentsPoint) const { return contentsToWindow(contentsPoint); }
     IntRect windowToContents(const IntRect& windowRect) const { return convertFromContainingWindow(windowRect); }
     IntRect contentsToWindow(const IntRect& contentsRect) const { return contentsToWindow(contentsRect); }
-    IntSize scrollOffset() const { return IntSize(); }
-    IntPoint minimumScrollPosition() const { return IntPoint(); }
-    IntPoint maximumScrollPosition() const { return IntPoint(); }
-    IntPoint scrollPosition() const { return IntPoint(); }
     bool scheduleAnimation();
     IntRect visibleContentRect(IncludeScrollbarsInRect = ExcludeScrollbars) const { return IntRect(IntPoint(), expandedIntSize(frameRect().size())); }
     IntSize unscaledVisibleContentSize(IncludeScrollbarsInRect = ExcludeScrollbars) const { return frameRect().size(); }
     // FIXME(sky): Not clear what values these should return. This is just what they happen to be
     // returning today.
     bool paintsEntireContents() const { return false; }
     bool clipsPaintInvalidations() const { return true; }
 
 protected:
     bool isVerticalDocument() const;
@@ skipping 28 matching lines @@
     // Override ScrollView methods to do point conversion via renderers, in order to
     // take transforms into account.
     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;
 
     bool wasViewportResized();
     void sendResizeEventIfNeeded();
 
-    void scrollPositionChanged();
-    void didScrollTimerFired(Timer<FrameView>*);
-
     void updateCompositedSelectionBoundsIfNeeded();
 
     void setLayoutSizeInternal(const IntSize&);
 
     bool paintInvalidationIsAllowed() const
     {
         return !isInPerformLayout() || canInvalidatePaintDuringPerformLayout();
     }
 
     static double s_currentFrameTimeStamp; // used for detecting decoded resource thrash in the cache
@@ skipping 47 matching lines @@
 
     bool m_hasSoftwareFilters;
 
     float m_visibleContentScaleFactor;
     IntSize m_inputEventsOffsetForEmulation;
     float m_inputEventsScaleFactorForEmulation;
 
     IntSize m_layoutSize;
     bool m_layoutSizeFixedToFrameSize;
 
-    Timer<FrameView> m_didScrollTimer;
-
     Vector<IntRect> m_tickmarks;
 };
 
 DEFINE_TYPE_CASTS(FrameView, Widget, widget, widget->isFrameView(), widget.isFrameView());
 
 class AllowPaintInvalidationScope {
 public:
     explicit AllowPaintInvalidationScope(FrameView* view)
         : m_view(view)
         , m_originalValue(view ? view->canInvalidatePaintDuringPerformLayout() : false)
@@ skipping 12 matching lines @@
         m_view->setCanInvalidatePaintDuringPerformLayout(m_originalValue);
     }
 private:
     FrameView* m_view;
     bool m_originalValue;
 };
 
 } // namespace blink
 
 #endif // FrameView_h