More explicit LayoutUnit conversions

third_party/WebKit/Source/core/paint/PaintLayerScrollableArea.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
  *
  * Portions are Copyright (C) 1998 Netscape Communications Corporation.
  *
  * Other contributors:
  *   Robert O'Callahan <roc+@cs.cmu.edu>
  *   David Baron <dbaron@fas.harvard.edu>
  *   Christian Biesinger <cbiesinger@web.de>
  *   Randall Jesup <rjesup@wgate.com>
@@ skipping 884 matching lines @@
         return IntRect();
 
     const IntRect& scrollCorner = scrollCornerRect();
 
     return IntRect(verticalScrollbarStart(borderBoxRect.x(), borderBoxRect.maxX()),
         borderBoxRect.y() + box().borderTop(),
         verticalScrollbar()->width(),
         borderBoxRect.height() - (box().borderTop() + box().borderBottom()) - scrollCorner.height());
 }
 
-LayoutUnit PaintLayerScrollableArea::verticalScrollbarStart(int minX, int maxX) const
+int PaintLayerScrollableArea::verticalScrollbarStart(int minX, int maxX) const
 {
     if (box().shouldPlaceBlockDirectionScrollbarOnLogicalLeft())
         return minX + box().borderLeft();
     return maxX - box().borderRight() - verticalScrollbar()->width();
 }
 
-LayoutUnit PaintLayerScrollableArea::horizontalScrollbarStart(int minX) const
+int PaintLayerScrollableArea::horizontalScrollbarStart(int minX) const
 {
     int x = minX + box().borderLeft();
     if (box().shouldPlaceBlockDirectionScrollbarOnLogicalLeft())
         x += hasVerticalScrollbar() ? verticalScrollbar()->width() : resizerCornerRect(box().pixelSnappedBorderBoxRect(), ResizerForPointer).width();
     return x;
 }
 
 IntSize PaintLayerScrollableArea::scrollbarOffset(const Scrollbar& scrollbar) const
 {
     if (&scrollbar == verticalScrollbar())
@@ skipping 622 matching lines @@
 }
 
 DEFINE_TRACE(PaintLayerScrollableArea::ScrollbarManager)
 {
     visitor->trace(m_scrollableArea);
     visitor->trace(m_hBar);
     visitor->trace(m_vBar);
 }
 
 } // namespace blink