[css tables] Don't pass table width increase due to % columns to parents

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

 /*
  * Copyright (C) 2002 Lars Knoll (knoll@kde.org)
  *           (C) 2002 Dirk Mueller (mueller@kde.org)
  *
  * 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
  * version 2 of the License.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #ifndef TableLayoutAlgorithm_h
 #define TableLayoutAlgorithm_h
 
+#include "platform/LayoutUnit.h"
 #include "wtf/Allocator.h"
 #include "wtf/Noncopyable.h"
 
 namespace blink {
 
-class LayoutUnit;
 class LayoutTable;
 
 class TableLayoutAlgorithm {
     WTF_MAKE_NONCOPYABLE(TableLayoutAlgorithm); USING_FAST_MALLOC(TableLayoutAlgorithm);
 public:
     explicit TableLayoutAlgorithm(LayoutTable* table)
         : m_table(table)
     {
     }
 
     virtual ~TableLayoutAlgorithm() { }
 
     virtual void computeIntrinsicLogicalWidths(LayoutUnit& minWidth, LayoutUnit& maxWidth) = 0;
+    virtual LayoutUnit scaledWidthFromPercentColumns()
+    {
+        return LayoutUnit(0);
+    }
     virtual void applyPreferredLogicalWidthQuirks(LayoutUnit& minWidth, LayoutUnit& maxWidth) const = 0;
     virtual void layout() = 0;
     virtual void willChangeTableLayout() = 0;
 
 protected:
     // FIXME: Once we enable SATURATED_LAYOUT_ARITHMETHIC, this should just be LayoutUnit::nearlyMax().
     // Until then though, using nearlyMax causes overflow in some tests, so we just pick a large number.
     const static int tableMaxWidth = 1000000;
 
     LayoutTable* m_table;
 };
 
 } // namespace blink
 
 #endif // TableLayoutAlgorithm_h