Fix virtual/override/final usage in Source/modules/.

Source/modules/accessibility/AXListBoxOption.h

 /*
  * Copyright (C) 2008 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
@@ skipping 27 matching lines @@
 class AXObjectCacheImpl;
 class HTMLSelectElement;
 
 class AXListBoxOption final : public AXLayoutObject {
 
 private:
     AXListBoxOption(LayoutObject*, AXObjectCacheImpl&);
 
 public:
     static PassRefPtrWillBeRawPtr<AXListBoxOption> create(LayoutObject*, AXObjectCacheImpl&);
-    virtual ~AXListBoxOption();
+    ~AXListBoxOption() override;
 
-    virtual bool isAXListBoxOption() const override { return true; }
-    virtual AccessibilityRole determineAccessibilityRole() override final;
-    virtual bool isSelected() const override;
-    virtual bool isEnabled() const override;
-    virtual bool isSelectedOptionActive() const override;
-    virtual void setSelected(bool) override;
-    virtual bool canSetSelectedAttribute() const override;
-    virtual String stringValue() const override;
-    virtual String deprecatedTitle(TextUnderElementMode) const override { return String(); }
+    bool isAXListBoxOption() const override { return true; }
+    AccessibilityRole determineAccessibilityRole() final;
+    bool isSelected() const override;
+    bool isEnabled() const override;
+    bool isSelectedOptionActive() const override;
+    void setSelected(bool) override;
+    bool canSetSelectedAttribute() const override;
+    String stringValue() const override;
+    String deprecatedTitle(TextUnderElementMode) const override { return String(); }
 
 private:
-    virtual bool canHaveChildren() const override { return false; }
-    virtual bool computeAccessibilityIsIgnored(IgnoredReasons* = nullptr) const override;
+    bool canHaveChildren() const override { return false; }
+    bool computeAccessibilityIsIgnored(IgnoredReasons* = nullptr) const override;
 
     HTMLSelectElement* listBoxOptionParentNode() const;
     int listBoxOptionIndex() const;
     AXObject* listBoxOptionAXObject(HTMLElement*) const;
     bool isParentPresentationalRole() const;
 };
 
 DEFINE_AX_OBJECT_TYPE_CASTS(AXListBoxOption, isAXListBoxOption());
 
 } // namespace blink
 
 #endif // AXListBoxOption_h