Use LayoutUnit where previously LayoutUnits were implicitly converted to int

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@gmail.com>
  *   Randall Jesup <rjesup@wgate.com>
@@ skipping 1162 matching lines @@
 
     IntRect resizeControlRect;
     if (box().style()->resize() != RESIZE_NONE) {
         resizeControlRect = resizerCornerRect(box().pixelSnappedBorderBoxRect(), ResizerForPointer);
         if (resizeControlRect.contains(localPoint))
             return true;
     }
 
     int resizeControlSize = max(resizeControlRect.height(), 0);
     if (hasVerticalScrollbar() && verticalScrollbar()->shouldParticipateInHitTesting()) {
-        // TODO(crbug.com/638981): Are the conversions to int intentional?
         LayoutRect vBarRect(verticalScrollbarStart(0, box().size().width().toInt()),
             box().borderTop(),
             verticalScrollbar()->width(),
-            (box().size().height() - (box().borderTop() + box().borderBottom()) - (hasHorizontalScrollbar() ? horizontalScrollbar()->height() : resizeControlSize)).toInt());
+            box().size().height().toInt() - (box().borderTop() + box().borderBottom()) - (hasHorizontalScrollbar() ? horizontalScrollbar()->height() : resizeControlSize));
         if (vBarRect.contains(localPoint)) {
             result.setScrollbar(verticalScrollbar());
             return true;
         }
     }
 
     resizeControlSize = max(resizeControlRect.width(), 0);
     if (hasHorizontalScrollbar() && horizontalScrollbar()->shouldParticipateInHitTesting()) {
         // TODO(crbug.com/638981): Are the conversions to int intentional?
         LayoutRect hBarRect(horizontalScrollbarStart(0),
@@ skipping 575 matching lines @@
 
 void PaintLayerScrollableArea::DelayScrollPositionClampScope::clampScrollableAreas()
 {
     for (auto& scrollableArea : *s_needsClamp)
         scrollableArea->clampScrollPositionsAfterLayout();
     delete s_needsClamp;
     s_needsClamp = nullptr;
 }
 
 } // namespace blink