[css-grid] Use min|max-sizes to compute flex fraction

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

 /*
  * Copyright (C) 2011 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 106 matching lines @@
   bool namedGridLinesDefinitionDidChange(const ComputedStyle&) const;
 
   class GridIterator;
   struct GridSizingData;
   enum SizingOperation { TrackSizing, IntrinsicSizeComputation };
   void computeUsedBreadthOfGridTracks(
       GridTrackSizingDirection,
       GridSizingData&,
       LayoutUnit& baseSizesWithoutMaximization,
       LayoutUnit& growthLimitsWithoutMaximization) const;
+  void computeFlexSizedTracksGrowth(
+      GridTrackSizingDirection,
+      Vector<GridTrack>&,
+      const Vector<size_t>& flexibleSizedTracksIndex,
+      double flexFraction,
+      Vector<LayoutUnit>& increments,
+      LayoutUnit& totalGrowth) const;
   LayoutUnit computeUsedBreadthOfMinLength(const GridTrackSize&,
                                            LayoutUnit maxBreadth) const;
   LayoutUnit computeUsedBreadthOfMaxLength(const GridTrackSize&,
                                            LayoutUnit usedBreadth,
                                            LayoutUnit maxBreadth) const;
   void resolveContentBasedTrackSizingFunctions(GridTrackSizingDirection,
                                                GridSizingData&) const;
 
   void ensureGridSize(size_t maximumRowSize, size_t maximumColumnSize);
   void insertItemIntoGrid(LayoutBox&, const GridArea&);
@@ skipping 227 matching lines @@
   std::unique_ptr<OrderedTrackIndexSet> m_autoRepeatEmptyRows{nullptr};
 
   Optional<bool> m_hasDefiniteLogicalHeight;
 };
 
 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutGrid, isLayoutGrid());
 
 }  // namespace blink
 
 #endif  // LayoutGrid_h