Do not pass scrollPosition to updateScrollbars at every callsite

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 601 matching lines @@
 
     enum ComputeScrollbarExistenceOption {
         FirstPass,
         Incremental
     };
     void computeScrollbarExistence(bool& newHasHorizontalScrollbar, bool& newHasVerticalScrollbar, const IntSize& docSize, ComputeScrollbarExistenceOption = FirstPass) const;
     void updateScrollbarGeometry();
     IntRect adjustScrollbarRectForResizer(const IntRect&, Scrollbar&);
 
     // Called to update the scrollbars to accurately reflect the state of the view.
-    void updateScrollbars(const DoubleSize& desiredOffset);
+    void updateScrollbars();
 
     class InUpdateScrollbarsScope {
         STACK_ALLOCATED();
     public:
         explicit InUpdateScrollbarsScope(FrameView* view)
             : m_scope(view->m_inUpdateScrollbars, true)
         { }
     private:
         TemporaryChange<bool> m_scope;
     };
@@ skipping 295 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