Make EBorderStyle an enum class.

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

 /*
  * Copyright (C) 1997 Martin Jones (mjones@kde.org)
  *           (C) 1997 Torben Weis (weis@kde.org)
  *           (C) 1998 Waldo Bastian (bastian@kde.org)
  *           (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc.
  *               All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 545 matching lines @@
 //     the same type disagree.
 static bool CompareBorders(const CollapsedBorderValue& border1,
                            const CollapsedBorderValue& border2) {
   // Sanity check the values passed in. The null border have lowest priority.
   if (!border2.Exists())
     return false;
   if (!border1.Exists())
     return true;
 
   // Rule #1 above.
-  if (border1.Style() == kBorderStyleHidden)
+  if (border1.Style() == EBorderStyle::kHidden)
     return false;
-  if (border2.Style() == kBorderStyleHidden)
+  if (border2.Style() == EBorderStyle::kHidden)
     return true;
 
   // Rule #2 above.  A style of 'none' has lowest priority and always loses to
   // any other border.
-  if (border2.Style() == kBorderStyleNone)
+  if (border2.Style() == EBorderStyle::kNone)
     return false;
-  if (border1.Style() == kBorderStyleNone)
+  if (border1.Style() == EBorderStyle::kNone)
     return true;
 
   // The first part of rule #3 above. Wider borders win.
   if (border1.Width() != border2.Width())
     return border1.Width() < border2.Width();
 
   // The borders have equal width.  Sort by border style.
   if (border1.Style() != border2.Style())
     return border1.Style() < border2.Style();
 
@@ skipping 909 matching lines @@
 
   return LayoutBlock::HasLineIfEmpty();
 }
 
 PaintInvalidationReason LayoutTableCell::InvalidatePaint(
     const PaintInvalidatorContext& context) const {
   return TableCellPaintInvalidator(*this, context).InvalidatePaint();
 }
 
 }  // namespace blink