[css-grid] Fix track sizing algo w/ size restrictions and intrinsic sizes

Source/core/layout/LayoutGrid.h

Index: Source/core/layout/LayoutGrid.h
diff --git a/Source/core/layout/LayoutGrid.h b/Source/core/layout/LayoutGrid.h
index 275673d0f5ecb085af173ef03745e13f3a72853a..d3f056bee8b546f594f43265f7ba922b8026b704 100644
--- a/Source/core/layout/LayoutGrid.h
+++ b/Source/core/layout/LayoutGrid.h
@@ -105,7 +105,6 @@ private:
 
     class GridIterator;
     struct GridSizingData;
-    bool gridElementIsShrinkToFit();
     void computeUsedBreadthOfGridTracks(GridTrackSizingDirection, GridSizingData&, LayoutUnit& availableLogicalSpace);
     LayoutUnit computeUsedBreadthOfMinLength(GridTrackSizingDirection, const GridLength&) const;
     LayoutUnit computeUsedBreadthOfMaxLength(GridTrackSizingDirection, const GridLength&, LayoutUnit usedBreadth) const;
@@ -186,6 +185,8 @@ private:
     }
 
     bool hasDefiniteLogicalSize(GridTrackSizingDirection) const;
+    LayoutUnit spaceToDistributeForMaximizeTracks(GridTrackSizingDirection, bool hasDefiniteAvailableSpace, const LayoutUnit& tracksBreadth, const LayoutUnit& freeSpace) const;
+    void maximizeTracks(Vector<GridTrack>&, GridSizingData&, LayoutUnit& spaceToDistribute);
 
     typedef Vector<Vector<GridCell>> GridRepresentation;
     GridRepresentation m_grid;