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

Source/core/layout/LayoutRubyText.h

 /*
  * Copyright (C) 2009 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 20 matching lines @@
 #ifndef LayoutRubyText_h
 #define LayoutRubyText_h
 
 #include "core/layout/LayoutBlockFlow.h"
 
 namespace blink {
 
 class LayoutRubyText final : public LayoutBlockFlow {
 public:
     LayoutRubyText(Element*);
-    virtual ~LayoutRubyText();
+    ~LayoutRubyText() override;
 
-    virtual const char* name() const override { return "LayoutRubyText"; }
+    const char* name() const override { return "LayoutRubyText"; }
 
-    virtual bool isOfType(LayoutObjectType type) const override { return type == LayoutObjectRubyText || LayoutBlockFlow::isOfType(type); }
+    bool isOfType(LayoutObjectType type) const override { return type == LayoutObjectRubyText || LayoutBlockFlow::isOfType(type); }
 
-    virtual bool isChildAllowed(LayoutObject*, const ComputedStyle&) const override;
+    bool isChildAllowed(LayoutObject*, const ComputedStyle&) const override;
 
 private:
-    virtual bool avoidsFloats() const override;
+    bool avoidsFloats() const override;
 
-    virtual ETextAlign textAlignmentForLine(bool endsWithSoftBreak) const override;
-    virtual void adjustInlineDirectionLineBounds(unsigned expansionOpportunityCount, LayoutUnit& logicalLeft, LayoutUnit& logicalWidth) const override;
+    ETextAlign textAlignmentForLine(bool endsWithSoftBreak) const override;
+    void adjustInlineDirectionLineBounds(unsigned expansionOpportunityCount, LayoutUnit& logicalLeft, LayoutUnit& logicalWidth) const override;
 };
 
 } // namespace blink
 
 #endif // LayoutRubyText_h