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

Source/modules/accessibility/AXSpinButton.h

Index: Source/modules/accessibility/AXSpinButton.h
diff --git a/Source/modules/accessibility/AXSpinButton.h b/Source/modules/accessibility/AXSpinButton.h
index 338d9dab4a94d1f27b21bcfec62b4e92da51d51a..ac7019e186ba72b89410aa783c04e251a47d27ee 100644
--- a/Source/modules/accessibility/AXSpinButton.h
+++ b/Source/modules/accessibility/AXSpinButton.h
@@ -37,7 +37,7 @@ 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; }
@@ -46,13 +46,13 @@ public:
 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;
 };
@@ -60,7 +60,7 @@ private:
 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; }
@@ -69,10 +69,10 @@ 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());