Make EBorderStyle an enum class.

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

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "core/paint/TableCellPainter.h"
 
 #include "core/layout/LayoutTableCell.h"
 #include "core/paint/BlockPainter.h"
 #include "core/paint/BoxPainter.h"
 #include "core/paint/LayoutObjectDrawingRecorder.h"
@@ skipping 45 matching lines @@
   return style_for_cell_flow.IsLeftToRightDirection() ? values.EndBorder()
                                                       : values.StartBorder();
 }
 
 void TableCellPainter::Paint(const PaintInfo& paint_info,
                              const LayoutPoint& paint_offset) {
   BlockPainter(layout_table_cell_).Paint(paint_info, paint_offset);
 }
 
 static EBorderStyle CollapsedBorderStyle(EBorderStyle style) {
-  if (style == kBorderStyleOutset)
-    return kBorderStyleGroove;
-  if (style == kBorderStyleInset)
-    return kBorderStyleRidge;
+  if (style == EBorderStyle::kOutset)
+    return EBorderStyle::kGroove;
+  if (style == EBorderStyle::kInset)
+    return EBorderStyle::kRidge;
   return style;
 }
 
 const DisplayItemClient& TableCellPainter::DisplayItemClientForBorders() const {
   // TODO(wkorman): We may need to handle PaintInvalidationDelayedFull.
   // http://crbug.com/657186
   return layout_table_cell_.UsesCompositedCellDisplayItemClients()
              ? static_cast<const DisplayItemClient&>(
                    *layout_table_cell_.GetCollapsedBorderValues())
              : layout_table_cell_;
@@ skipping 208 matching lines @@
   BoxPainter(layout_table_cell_).PaintMaskImages(paint_info, paint_rect);
 }
 
 LayoutRect TableCellPainter::PaintRectNotIncludingVisualOverflow(
     const LayoutPoint& paint_offset) {
   return LayoutRect(paint_offset,
                     LayoutSize(layout_table_cell_.PixelSnappedSize()));
 }
 
 }  // namespace blink