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

Source/core/layout/LayoutRubyText.h

Index: Source/core/layout/LayoutRubyText.h
diff --git a/Source/core/layout/LayoutRubyText.h b/Source/core/layout/LayoutRubyText.h
index 0d84a43adf8a34a6e13fca1c3e1ec3c48d7a9ad8..8841b37296d24f780156c2128285419c71f26673 100644
--- a/Source/core/layout/LayoutRubyText.h
+++ b/Source/core/layout/LayoutRubyText.h
@@ -38,19 +38,19 @@ 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