Replace adjustment of previous visual rects on scroll with normal paint invalidation

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
@@ skipping 915 matching lines @@
 
   void scheduleUpdateWidgetsIfNecessary();
   void updateWidgetsTimerFired(TimerBase*);
   bool updateWidgets();
 
   bool processUrlFragmentHelper(const String&, UrlFragmentBehavior);
   void setFragmentAnchor(Node*);
   void scrollToFragmentAnchor();
   void didScrollTimerFired(TimerBase*);
 
-  void updateLayersAndCompositingAfterScrollIfNeeded(
-      const ScrollOffset& scrollDelta);
+  void updateLayersAndCompositingAfterScrollIfNeeded();
 
   static bool computeCompositedSelection(LocalFrame&, CompositedSelection&);
   void updateCompositedSelectionIfNeeded();
 
   // Returns true if the FrameView's own scrollbars overlay its content when
   // visible.
   bool hasOverlayScrollbars() const;
 
   // Returns true if the frame should use custom scrollbars. If true, one of
   // either |customScrollbarElement| or |customScrollbarFrame| will be set to
@@ skipping 261 matching lines @@
                   widget.isFrameView());
 DEFINE_TYPE_CASTS(FrameView,
                   ScrollableArea,
                   scrollableArea,
                   scrollableArea->isFrameView(),
                   scrollableArea.isFrameView());
 
 }  // namespace blink
 
 #endif  // FrameView_h