Support subpixel layout for borders.

third_party/WebKit/Source/core/layout/LayoutTable.h

 /*
  * 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, 2009, 2010 Apple Inc.
  *               All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 130 matching lines @@
   // 'border-spacing' property represent spacing between columns and rows
   // respectively, not necessarily the horizontal and vertical spacing
   // respectively".
   int hBorderSpacing() const { return m_hSpacing; }
   int vBorderSpacing() const { return m_vSpacing; }
 
   bool collapseBorders() const {
     return style()->borderCollapse() == EBorderCollapse::kCollapse;
   }
 
-  int borderStart() const override { return m_borderStart; }
-  int borderEnd() const override { return m_borderEnd; }
-  int borderBefore() const override;
-  int borderAfter() const override;
+  LayoutUnit borderStart() const override { return LayoutUnit(m_borderStart); }
+  LayoutUnit borderEnd() const override { return LayoutUnit(m_borderEnd); }
+  LayoutUnit borderBefore() const override;
+  LayoutUnit borderAfter() const override;
 
-  int borderLeft() const override {
+  LayoutUnit borderLeft() const override {
     if (style()->isHorizontalWritingMode())
       return style()->isLeftToRightDirection() ? borderStart() : borderEnd();
     return style()->isFlippedBlocksWritingMode() ? borderAfter()
                                                  : borderBefore();
   }
 
-  int borderRight() const override {
+  LayoutUnit borderRight() const override {
     if (style()->isHorizontalWritingMode())
       return style()->isLeftToRightDirection() ? borderEnd() : borderStart();
     return style()->isFlippedBlocksWritingMode() ? borderBefore()
                                                  : borderAfter();
   }
 
-  int borderTop() const override {
+  LayoutUnit borderTop() const override {
     if (style()->isHorizontalWritingMode())
       return style()->isFlippedBlocksWritingMode() ? borderAfter()
                                                    : borderBefore();
     return style()->isLeftToRightDirection() ? borderStart() : borderEnd();
   }
 
-  int borderBottom() const override {
+  LayoutUnit borderBottom() const override {
     if (style()->isHorizontalWritingMode())
       return style()->isFlippedBlocksWritingMode() ? borderBefore()
                                                    : borderAfter();
     return style()->isLeftToRightDirection() ? borderEnd() : borderStart();
   }
 
   int outerBorderBefore() const;
   int outerBorderAfter() const;
   int outerBorderStart() const;
   int outerBorderEnd() const;
@@ skipping 404 matching lines @@
   if (m_firstBody)
     return m_firstBody;
   return m_foot;
 }
 
 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutTable, isTable());
 
 }  // namespace blink
 
 #endif  // LayoutTable_h