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

Source/core/layout/LayoutMultiColumnSet.h

 /*
  * Copyright (C) 2012 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 50 matching lines @@
 class CORE_EXPORT LayoutMultiColumnSet : public LayoutBlockFlow {
 public:
     static LayoutMultiColumnSet* createAnonymous(LayoutFlowThread&, const ComputedStyle& parentStyle);
 
     const MultiColumnFragmentainerGroup& firstFragmentainerGroup() const { return m_fragmentainerGroups.first(); }
     const MultiColumnFragmentainerGroup& lastFragmentainerGroup() const { return m_fragmentainerGroups.last(); }
     MultiColumnFragmentainerGroup& fragmentainerGroupAtFlowThreadOffset(LayoutUnit);
     const MultiColumnFragmentainerGroup& fragmentainerGroupAtFlowThreadOffset(LayoutUnit) const;
     const MultiColumnFragmentainerGroup& fragmentainerGroupAtVisualPoint(const LayoutPoint&) const;
 
-    virtual bool isOfType(LayoutObjectType type) const override { return type == LayoutObjectLayoutMultiColumnSet || LayoutBlockFlow::isOfType(type); }
-    virtual bool canHaveChildren() const override final { return false; }
+    bool isOfType(LayoutObjectType type) const override { return type == LayoutObjectLayoutMultiColumnSet || LayoutBlockFlow::isOfType(type); }
+    bool canHaveChildren() const final { return false; }
 
     // Return the width and height of a single column or page in the set.
     LayoutUnit pageLogicalWidth() const { return flowThread()->logicalWidth(); }
     LayoutUnit pageLogicalHeight() const;
 
     LayoutFlowThread* flowThread() const { return m_flowThread; }
 
     LayoutBlockFlow* multiColumnBlockFlow() const { return toLayoutBlockFlow(parent()); }
     LayoutMultiColumnFlowThread* multiColumnFlowThread() const
     {
@@ skipping 51 matching lines @@
 
     // Layout of flow thread content that was to be rendered inside this column set has
     // finished. This happens at end of flow thread layout, and when advancing to the next column
     // set or spanner.
     void endFlow(LayoutUnit offsetInFlowThread);
 
     // Expand this set's flow thread portion rectangle to contain all trailing flow thread
     // overflow. Only to be called on the last set.
     void expandToEncompassFlowThreadContentsIfNeeded();
 
-    virtual void computeIntrinsicLogicalWidths(LayoutUnit& minLogicalWidth, LayoutUnit& maxLogicalWidth) const override final;
+    void computeIntrinsicLogicalWidths(LayoutUnit& minLogicalWidth, LayoutUnit& maxLogicalWidth) const final;
 
     void attachToFlowThread();
     void detachFromFlowThread();
 
     // The top of the page nearest to the specified block offset. All in flowthread coordinates.
     LayoutUnit pageLogicalTopForOffset(LayoutUnit offset) const;
 
     void collectLayerFragments(DeprecatedPaintLayerFragments&, const LayoutRect& layerBoundingBox, const LayoutRect& dirtyRect);
 
     LayoutUnit columnGap() const;
 
     // The "CSS actual" value of column-count. This includes overflowing columns, if any.
     unsigned actualColumnCount() const;
 
-    virtual const char* name() const override { return "LayoutMultiColumnSet"; }
+    const char* name() const override { return "LayoutMultiColumnSet"; }
 
 protected:
     LayoutMultiColumnSet(LayoutFlowThread*);
 
 private:
-    virtual void insertedIntoTree() override final;
-    virtual void willBeRemovedFromTree() override final;
+    void insertedIntoTree() final;
+    void willBeRemovedFromTree() final;
 
-    virtual bool isSelfCollapsingBlock() const override { return false; }
+    bool isSelfCollapsingBlock() const override { return false; }
 
-    virtual void computeLogicalHeight(LayoutUnit logicalHeight, LayoutUnit logicalTop, LogicalExtentComputedValues&) const override;
-    virtual PositionWithAffinity positionForPoint(const LayoutPoint&) override;
+    void computeLogicalHeight(LayoutUnit logicalHeight, LayoutUnit logicalTop, LogicalExtentComputedValues&) const override;
+    PositionWithAffinity positionForPoint(const LayoutPoint&) override;
 
-    virtual void paintObject(const PaintInfo&, const LayoutPoint& paintOffset) override;
+    void paintObject(const PaintInfo&, const LayoutPoint& paintOffset) override;
 
-    virtual void addOverflowFromChildren() override;
+    void addOverflowFromChildren() override;
 
     MultiColumnFragmentainerGroupList m_fragmentainerGroups;
     LayoutFlowThread* m_flowThread;
 };
 
 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutMultiColumnSet, isLayoutMultiColumnSet());
 
 } // namespace blink
 
 #endif // LayoutMultiColumnSet_h