Fix virtual/override/final usage in Source/core/layout/.

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 32 matching lines @@
     ResolveMaxContentMinimums,
     ResolveIntrinsicMaximums,
     ResolveMaxContentMaximums,
     MaximizeTracks,
 };
 enum GridAxisPosition {GridAxisStart, GridAxisEnd, GridAxisCenter};
 
 class LayoutGrid final : public LayoutBlock {
 public:
     explicit LayoutGrid(Element*);
-    virtual ~LayoutGrid();
+    ~LayoutGrid() override;
 
-    virtual const char* name() const override { return "LayoutGrid"; }
+    const char* name() const override { return "LayoutGrid"; }
 
-    virtual void layoutBlock(bool relayoutChildren) override;
+    void layoutBlock(bool relayoutChildren) override;
 
-    virtual bool canCollapseAnonymousBlockChild() const override { return false; }
+    bool canCollapseAnonymousBlockChild() const override { return false; }
 
     void dirtyGrid();
 
     const Vector<LayoutUnit>& columnPositions() const
     {
         ASSERT(!m_gridIsDirty);
         return m_columnPositions;
     }
 
     const Vector<LayoutUnit>& rowPositions() const
@@ skipping 15 matching lines @@
         return m_gridItemsOverflowingGridArea;
     }
 
     int paintIndexForGridItem(const LayoutBox* layoutBox)
     {
         ASSERT_WITH_SECURITY_IMPLICATION(!m_gridIsDirty);
         return m_gridItemsIndexesMap.get(layoutBox);
     }
 
 private:
-    virtual bool isOfType(LayoutObjectType type) const override { return type == LayoutObjectLayoutGrid || LayoutBlock::isOfType(type); }
-    virtual void computeIntrinsicLogicalWidths(LayoutUnit& minLogicalWidth, LayoutUnit& maxLogicalWidth) const override;
-    virtual void computePreferredLogicalWidths() override;
+    bool isOfType(LayoutObjectType type) const override { return type == LayoutObjectLayoutGrid || LayoutBlock::isOfType(type); }
+    void computeIntrinsicLogicalWidths(LayoutUnit& minLogicalWidth, LayoutUnit& maxLogicalWidth) const override;
+    void computePreferredLogicalWidths() override;
 
-    virtual void addChild(LayoutObject* newChild, LayoutObject* beforeChild = nullptr) override;
-    virtual void removeChild(LayoutObject*) override;
+    void addChild(LayoutObject* newChild, LayoutObject* beforeChild = nullptr) override;
+    void removeChild(LayoutObject*) override;
 
-    virtual void styleDidChange(StyleDifference, const ComputedStyle*) override;
+    void styleDidChange(StyleDifference, const ComputedStyle*) override;
 
     bool explicitGridDidResize(const ComputedStyle&) const;
     bool namedGridLinesDefinitionDidChange(const ComputedStyle&) const;
 
     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;
@@ skipping 36 matching lines @@
     LayoutUnit columnAxisOffsetForChild(const LayoutBox&) const;
     ContentAlignmentData computeContentPositionAndDistributionOffset(GridTrackSizingDirection, LayoutUnit availableFreeSpace, unsigned numberOfGridTracks) const;
     LayoutPoint findChildLogicalPosition(const LayoutBox&, GridSizingData&) const;
     GridCoordinate cachedGridCoordinate(const LayoutBox&) const;
 
     LayoutUnit gridAreaBreadthForChild(const LayoutBox& child, GridTrackSizingDirection, const Vector<GridTrack>&) const;
     LayoutUnit gridAreaBreadthForChildIncludingAlignmentOffsets(const LayoutBox&, GridTrackSizingDirection, const GridSizingData&) const;
 
     void applyStretchAlignmentToTracksIfNeeded(GridTrackSizingDirection, GridSizingData&, LayoutUnit availableSpace);
 
-    virtual void paintChildren(const PaintInfo&, const LayoutPoint&) override;
+    void paintChildren(const PaintInfo&, const LayoutPoint&) override;
     bool allowedToStretchLogicalHeightForChild(const LayoutBox& child) const;
     bool needToStretchChildLogicalHeight(const LayoutBox&) const;
     LayoutUnit childIntrinsicHeight(const LayoutBox&) const;
     LayoutUnit childIntrinsicWidth(const LayoutBox&) const;
     LayoutUnit intrinsicLogicalHeightForChild(const LayoutBox&) const;
     LayoutUnit marginLogicalHeightForChild(const LayoutBox&) const;
     LayoutUnit computeMarginLogicalHeightForChild(const LayoutBox&) const;
     LayoutUnit availableAlignmentSpaceForChildBeforeStretching(LayoutUnit gridAreaBreadthForChild, const LayoutBox&) const;
     void applyStretchAlignmentToChildIfNeeded(LayoutBox&, LayoutUnit gridAreaBreadthForChild);
 
@@ skipping 26 matching lines @@
     OrderIterator m_orderIterator;
     Vector<LayoutBox*> m_gridItemsOverflowingGridArea;
     HashMap<const LayoutBox*, size_t> m_gridItemsIndexesMap;
 };
 
 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutGrid, isLayoutGrid());
 
 } // namespace blink
 
 #endif // LayoutGrid_h