Delete FrameView::rectToCopyOnScroll.

third_party/WebKit/Source/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 387 matching lines @@
     LayoutRect scrollIntoView(
         const LayoutRect& rectInContent,
         const ScrollAlignment& alignX,
         const ScrollAlignment& alignY,
         ScrollType = ProgrammaticScroll) override;
 
     // The window that hosts the FrameView. The FrameView will communicate scrolls and repaints to the
     // host window in the window's coordinate space.
     HostWindow* getHostWindow() const;
 
-    // Returns a clip rect in host window coordinates. Used to clip the blit on a scroll.
-    IntRect windowClipRect(IncludeScrollbarsInRect = ExcludeScrollbars) const;
-
     typedef HeapHashSet<Member<Widget>> ChildrenWidgetSet;
 
     // Functions for child manipulation and inspection.
     void setParent(Widget*) override;
     void removeChild(Widget*);
     void addChild(Widget*);
     const ChildrenWidgetSet* children() const { return &m_children; }
 
     // If the scroll view does not use a native widget, then it will have cross-platform Scrollbars. These functions
     // can be used to obtain those scrollbars.
@@ skipping 199 matching lines @@
     bool shouldPerformScrollAnchoring() const override;
 
     // For PaintInvalidator temporarily. TODO(wangxianzhu): Move into PaintInvalidator.
     void invalidatePaintIfNeeded(const PaintInvalidationState&);
 
 protected:
     // Scroll the content via the compositor.
     bool scrollContentsFastPath(const IntSize& scrollDelta);
 
     // Scroll the content by invalidating everything.
-    void scrollContentsSlowPath(const IntRect& updateRect);
+    void scrollContentsSlowPath();
 
     // These functions are used to create/destroy scrollbars.
     void setHasHorizontalScrollbar(bool);
     void setHasVerticalScrollbar(bool);
 
     ScrollBehavior scrollBehaviorStyle() const override;
 
     void scrollContentsIfNeeded();
 
     enum ComputeScrollbarExistenceOption {
@@ skipping 109 matching lines @@
 
     AXObjectCache* axObjectCache() const;
 
     void setLayoutSizeInternal(const IntSize&);
 
     bool adjustScrollbarExistence(ComputeScrollbarExistenceOption = FirstPass);
     void adjustScrollbarOpacity();
     void adjustScrollPositionFromUpdateScrollbars();
     bool visualViewportSuppliesScrollbars() const;
 
-    IntRect rectToCopyOnScroll() const;
-
     bool isFrameViewScrollbar(const Widget* child) const { return horizontalScrollbar() == child || verticalScrollbar() == child; }
 
     ScrollingCoordinator* scrollingCoordinator() const;
 
     void prepareLayoutAnalyzer();
     std::unique_ptr<TracedValue> analyzerCounters();
 
     // LayoutObject for the viewport-defining element (see Document::viewportDefiningElement).
     LayoutObject* viewportLayoutObject() const;
 
@@ skipping 191 matching lines @@
     if (m_visuallyNonEmptyPixelCount > visualPixelThreshold)
         setIsVisuallyNonEmpty();
 }
 
 DEFINE_TYPE_CASTS(FrameView, Widget, widget, widget->isFrameView(), widget.isFrameView());
 DEFINE_TYPE_CASTS(FrameView, ScrollableArea, scrollableArea, scrollableArea->isFrameView(), scrollableArea.isFrameView());
 
 } // namespace blink
 
 #endif // FrameView_h