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

Source/modules/accessibility/AXSpinButton.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
@@ skipping 19 matching lines @@
 #include "modules/accessibility/AXMockObject.h"
 
 
 namespace blink {
 
 class AXObjectCacheImpl;
 
 class AXSpinButton final : public AXMockObject {
 public:
     static PassRefPtrWillBeRawPtr<AXSpinButton> create(AXObjectCacheImpl&);
-    virtual ~AXSpinButton();
+    ~AXSpinButton() override;
     DECLARE_VIRTUAL_TRACE();
 
     void setSpinButtonElement(SpinButtonElement* spinButton) { m_spinButtonElement = spinButton; }
     void step(int amount);
 
 private:
     explicit AXSpinButton(AXObjectCacheImpl&);
 
-    virtual AccessibilityRole roleValue() const override;
-    virtual bool isSpinButton() const override { return true; }
-    virtual bool isNativeSpinButton() const override { return true; }
-    virtual void addChildren() override;
-    virtual LayoutRect elementRect() const override;
-    virtual void detach() override;
-    virtual void detachFromParent() override;
+    AccessibilityRole roleValue() const override;
+    bool isSpinButton() const override { return true; }
+    bool isNativeSpinButton() const override { return true; }
+    void addChildren() override;
+    LayoutRect elementRect() const override;
+    void detach() override;
+    void detachFromParent() override;
 
     RawPtrWillBeMember<SpinButtonElement> m_spinButtonElement;
 };
 
 class AXSpinButtonPart final : public AXMockObject {
 public:
     static PassRefPtrWillBeRawPtr<AXSpinButtonPart> create(AXObjectCacheImpl&);
-    virtual ~AXSpinButtonPart() { }
+    ~AXSpinButtonPart() override { }
 
     bool isIncrementor() const { return m_isIncrementor; }
     void setIsIncrementor(bool value) { m_isIncrementor = value; }
 
 private:
     explicit AXSpinButtonPart(AXObjectCacheImpl&);
     bool m_isIncrementor : 1;
 
-    virtual bool press() const override;
-    virtual AccessibilityRole roleValue() const override { return ButtonRole; }
-    virtual bool isSpinButtonPart() const override { return true; }
-    virtual LayoutRect elementRect() const override;
+    bool press() const override;
+    AccessibilityRole roleValue() const override { return ButtonRole; }
+    bool isSpinButtonPart() const override { return true; }
+    LayoutRect elementRect() const override;
 };
 
 DEFINE_AX_OBJECT_TYPE_CASTS(AXSpinButton, isNativeSpinButton());
 DEFINE_AX_OBJECT_TYPE_CASTS(AXSpinButtonPart, isSpinButtonPart());
 
 } // namespace blink
 
 #endif // AXSpinButton_h