[css-grid] Pass Grid as argument to the items' placements methods

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 128 matching lines @@
   void resolveContentBasedTrackSizingFunctions(GridTrackSizingDirection,
                                                GridSizingData&) const;
 
   size_t computeAutoRepeatTracksCount(GridTrackSizingDirection,
                                       SizingOperation) const;
 
   typedef ListHashSet<size_t> OrderedTrackIndexSet;
   std::unique_ptr<OrderedTrackIndexSet> computeEmptyTracksForAutoRepeat(
       GridTrackSizingDirection) const;
 
-  void placeItemsOnGrid(SizingOperation);
-  void populateExplicitGridAndOrderIterator();
+  class Grid;
+  void placeItemsOnGrid(Grid&, SizingOperation);
+  void populateExplicitGridAndOrderIterator(Grid&) const;
   std::unique_ptr<GridArea> createEmptyGridAreaAtSpecifiedPositionsOutsideGrid(
       const LayoutBox&,
       GridTrackSizingDirection,
       const GridSpan& specifiedPositions) const;
-  void placeSpecifiedMajorAxisItemsOnGrid(const Vector<LayoutBox*>&);
-  void placeAutoMajorAxisItemsOnGrid(const Vector<LayoutBox*>&);
+  void placeSpecifiedMajorAxisItemsOnGrid(Grid&,
+                                          const Vector<LayoutBox*>&) const;
+  void placeAutoMajorAxisItemsOnGrid(Grid&, const Vector<LayoutBox*>&) const;
   void placeAutoMajorAxisItemOnGrid(
+      Grid&,
       LayoutBox&,
-      std::pair<size_t, size_t>& autoPlacementCursor);
+      std::pair<size_t, size_t>& autoPlacementCursor) const;
   GridTrackSizingDirection autoPlacementMajorAxisDirection() const;
   GridTrackSizingDirection autoPlacementMinorAxisDirection() const;
 
   void computeTrackSizesForIndefiniteSize(GridTrackSizingDirection,
                                           GridSizingData&,
                                           LayoutUnit& minIntrinsicSize,
                                           LayoutUnit& maxIntrinsicSize) const;
   LayoutUnit computeTrackBasedLogicalHeight(const GridSizingData&) const;
   void computeTrackSizesForDefiniteSize(GridTrackSizingDirection,
                                         GridSizingData&,
@@ skipping 254 matching lines @@
   LayoutUnit m_maxContentHeight{-1};
 
   Optional<bool> m_hasDefiniteLogicalHeight;
 };
 
 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutGrid, isLayoutGrid());
 
 }  // namespace blink
 
 #endif  // LayoutGrid_h