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

Source/platform/scroll/Scrollbar.h

Index: Source/platform/scroll/Scrollbar.h
diff --git a/Source/platform/scroll/Scrollbar.h b/Source/platform/scroll/Scrollbar.h
index db9870049a2a30aa7260512c4099427978bfbf2c..65c33e279fa7153eaaa5a1a96517dfa544f13f2f 100644
--- a/Source/platform/scroll/Scrollbar.h
+++ b/Source/platform/scroll/Scrollbar.h
@@ -49,49 +49,49 @@ class PLATFORM_EXPORT Scrollbar : public Widget, public ScrollbarThemeClient {
 public:
     static PassRefPtrWillBeRawPtr<Scrollbar> create(ScrollableArea*, ScrollbarOrientation, ScrollbarControlSize);
 
-    virtual ~Scrollbar();
+    ~Scrollbar() override;
 
     // ScrollbarThemeClient implementation.
-    virtual int x() const override { return Widget::x(); }
-    virtual int y() const override { return Widget::y(); }
-    virtual int width() const override { return Widget::width(); }
-    virtual int height() const override { return Widget::height(); }
-    virtual IntSize size() const override { return Widget::size(); }
-    virtual IntPoint location() const override { return Widget::location(); }
+    int x() const override { return Widget::x(); }
+    int y() const override { return Widget::y(); }
+    int width() const override { return Widget::width(); }
+    int height() const override { return Widget::height(); }
+    IntSize size() const override { return Widget::size(); }
+    IntPoint location() const override { return Widget::location(); }
 
-    virtual Widget* parent() const override { return Widget::parent(); }
-    virtual Widget* root() const override { return Widget::root(); }
+    Widget* parent() const override { return Widget::parent(); }
+    Widget* root() const override { return Widget::root(); }
 
-    virtual void setFrameRect(const IntRect&) override;
-    virtual IntRect frameRect() const override { return Widget::frameRect(); }
+    void setFrameRect(const IntRect&) override;
+    IntRect frameRect() const override { return Widget::frameRect(); }
 
-    virtual void invalidate() override { Widget::invalidate(); }
-    virtual void invalidateRect(const IntRect&) override;
+    void invalidate() override { Widget::invalidate(); }
+    void invalidateRect(const IntRect&) override;
 
-    virtual ScrollbarOverlayStyle scrollbarOverlayStyle() const override;
-    virtual void getTickmarks(Vector<IntRect>&) const override;
-    virtual bool isScrollableAreaActive() const override;
+    ScrollbarOverlayStyle scrollbarOverlayStyle() const override;
+    void getTickmarks(Vector<IntRect>&) const override;
+    bool isScrollableAreaActive() const override;
 
-    virtual IntPoint convertFromContainingWindow(const IntPoint& windowPoint) override { return Widget::convertFromContainingWindow(windowPoint); }
+    IntPoint convertFromContainingWindow(const IntPoint& windowPoint) override { return Widget::convertFromContainingWindow(windowPoint); }
 
-    virtual bool isCustomScrollbar() const override { return false; }
-    virtual ScrollbarOrientation orientation() const override { return m_orientation; }
-    virtual bool isLeftSideVerticalScrollbar() const override;
+    bool isCustomScrollbar() const override { return false; }
+    ScrollbarOrientation orientation() const override { return m_orientation; }
+    bool isLeftSideVerticalScrollbar() const override;
 
-    virtual int value() const override { return lroundf(m_currentPos); }
-    virtual float currentPos() const override { return m_currentPos; }
-    virtual int visibleSize() const override { return m_visibleSize; }
-    virtual int totalSize() const override { return m_totalSize; }
-    virtual int maximum() const override { return m_totalSize - m_visibleSize; }
-    virtual ScrollbarControlSize controlSize() const override { return m_controlSize; }
+    int value() const override { return lroundf(m_currentPos); }
+    float currentPos() const override { return m_currentPos; }
+    int visibleSize() const override { return m_visibleSize; }
+    int totalSize() const override { return m_totalSize; }
+    int maximum() const override { return m_totalSize - m_visibleSize; }
+    ScrollbarControlSize controlSize() const override { return m_controlSize; }
 
-    virtual ScrollbarPart pressedPart() const override { return m_pressedPart; }
-    virtual ScrollbarPart hoveredPart() const override { return m_hoveredPart; }
+    ScrollbarPart pressedPart() const override { return m_pressedPart; }
+    ScrollbarPart hoveredPart() const override { return m_hoveredPart; }
 
-    virtual void styleChanged() override { }
+    void styleChanged() override { }
 
-    virtual bool enabled() const override { return m_enabled; }
-    virtual void setEnabled(bool) override;
+    bool enabled() const override { return m_enabled; }
+    void setEnabled(bool) override;
 
     // Called by the ScrollableArea when the scroll offset changes.
     void offsetDidChange();
@@ -107,9 +107,9 @@ public:
     void setProportion(int visibleSize, int totalSize);
     void setPressedPos(int p) { m_pressedPos = p; }
 
-    virtual void paint(GraphicsContext*, const IntRect& damageRect) final;
+    void paint(GraphicsContext*, const IntRect& damageRect) final;
 
-    virtual bool isOverlayScrollbar() const override;
+    bool isOverlayScrollbar() const override;
     bool shouldParticipateInHitTesting();
 
     bool isWindowActive() const;
@@ -132,25 +132,25 @@ public:
     bool suppressInvalidation() const { return m_suppressInvalidation; }
     void setSuppressInvalidation(bool s) { m_suppressInvalidation = s; }
 
-    virtual IntRect convertToContainingView(const IntRect&) const override;
-    virtual IntRect convertFromContainingView(const IntRect&) const override;
+    IntRect convertToContainingView(const IntRect&) const override;
+    IntRect convertFromContainingView(const IntRect&) const override;
 
-    virtual IntPoint convertToContainingView(const IntPoint&) const override;
-    virtual IntPoint convertFromContainingView(const IntPoint&) const override;
+    IntPoint convertToContainingView(const IntPoint&) const override;
+    IntPoint convertFromContainingView(const IntPoint&) const override;
 
     void moveThumb(int pos, bool draggingDocument = false);
 
-    virtual bool isAlphaLocked() const override { return m_isAlphaLocked; }
-    virtual void setIsAlphaLocked(bool flag) override { m_isAlphaLocked = flag; }
+    bool isAlphaLocked() const override { return m_isAlphaLocked; }
+    void setIsAlphaLocked(bool flag) override { m_isAlphaLocked = flag; }
 
-    virtual float elasticOverscroll() const override { return m_elasticOverscroll; }
-    virtual void setElasticOverscroll(float elasticOverscroll) override { m_elasticOverscroll = elasticOverscroll; }
+    float elasticOverscroll() const override { return m_elasticOverscroll; }
+    void setElasticOverscroll(float elasticOverscroll) override { m_elasticOverscroll = elasticOverscroll; }
 
     bool overlapsResizer() const { return m_overlapsResizer; }
     void setOverlapsResizer(bool overlapsResizer) { m_overlapsResizer = overlapsResizer; }
 
-    virtual DisplayItemClient displayItemClient() const override { return toDisplayItemClient(this); }
-    virtual String debugName() const override { return m_orientation == HorizontalScrollbar ? "HorizontalScrollbar" : "VerticalScrollbar"; }
+    DisplayItemClient displayItemClient() const override { return toDisplayItemClient(this); }
+    String debugName() const override { return m_orientation == HorizontalScrollbar ? "HorizontalScrollbar" : "VerticalScrollbar"; }
 
     // Promptly unregister from the theme manager + run finalizers of derived Scrollbars.
     EAGERLY_FINALIZE();
@@ -202,7 +202,7 @@ protected:
     float m_elasticOverscroll;
 
 private:
-    virtual bool isScrollbar() const override { return true; }
+    bool isScrollbar() const override { return true; }
 
     float scrollableAreaCurrentPos() const;
 };