Even more explicit LayoutUnit conversion

third_party/WebKit/Source/core/layout/LayoutDeprecatedFlexibleBox.cpp

 /*
  * This file is part of the layout object implementation for KHTML.
  *
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003 Apple Computer, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 221 matching lines @@
         updateLogicalWidth();
         updateLogicalHeight();
 
         TextAutosizer::LayoutScope textAutosizerLayoutScope(this);
 
         if (previousSize != size()
             || (parent()->isDeprecatedFlexibleBox() && parent()->style()->boxOrient() == HORIZONTAL
             && parent()->style()->boxAlign() == BSTRETCH))
             relayoutChildren = true;
 
-        setHeight(0);
+        setHeight(LayoutUnit());
 
         m_stretchingChildren = false;
 
         if (isHorizontal())
             layoutHorizontalBox(relayoutChildren);
         else
             layoutVerticalBox(relayoutChildren);
 
         LayoutUnit oldClientAfterEdge = clientLogicalBottom();
         updateLogicalHeight();
@@ skipping 743 matching lines @@
     if (minHeight.isFixed() || minHeight.isAuto()) {
         LayoutUnit minHeight(child->style()->minHeight().value());
         LayoutUnit height = contentHeightForChild(child);
         LayoutUnit allowedShrinkage = (minHeight - height).clampPositiveToZero();
         return allowedShrinkage;
     }
     return LayoutUnit();
 }
 
 } // namespace blink