Standardize usage of virtual/override/final specifiers.

ui/views/controls/scroll_view.h

Index: ui/views/controls/scroll_view.h
diff --git a/ui/views/controls/scroll_view.h b/ui/views/controls/scroll_view.h
index 4dfcdfc19b91d300b94f2305e636ceb47403cf66..c90005b3a4706bf488d0d7090d0fb347e9fc9d8b 100644
--- a/ui/views/controls/scroll_view.h
+++ b/ui/views/controls/scroll_view.h
@@ -32,7 +32,7 @@ class VIEWS_EXPORT ScrollView : public View, public ScrollBarController {
 
   ScrollView();
 
-  virtual ~ScrollView();
+  ~ScrollView() override;
 
   // Creates a ScrollView with a theme specific border.
   static ScrollView* CreateScrollViewWithBorder();
@@ -75,21 +75,21 @@ class VIEWS_EXPORT ScrollView : public View, public ScrollBarController {
   void SetVerticalScrollBar(ScrollBar* vert_sb);
 
   // View overrides:
-  virtual gfx::Size GetPreferredSize() const override;
-  virtual int GetHeightForWidth(int width) const override;
-  virtual void Layout() override;
-  virtual bool OnKeyPressed(const ui::KeyEvent& event) override;
-  virtual bool OnMouseWheel(const ui::MouseWheelEvent& e) override;
-  virtual void OnMouseEntered(const ui::MouseEvent& event) override;
-  virtual void OnMouseExited(const ui::MouseEvent& event) override;
-  virtual void OnGestureEvent(ui::GestureEvent* event) override;
-  virtual const char* GetClassName() const override;
+  gfx::Size GetPreferredSize() const override;
+  int GetHeightForWidth(int width) const override;
+  void Layout() override;
+  bool OnKeyPressed(const ui::KeyEvent& event) override;
+  bool OnMouseWheel(const ui::MouseWheelEvent& e) override;
+  void OnMouseEntered(const ui::MouseEvent& event) override;
+  void OnMouseExited(const ui::MouseEvent& event) override;
+  void OnGestureEvent(ui::GestureEvent* event) override;
+  const char* GetClassName() const override;
 
   // ScrollBarController overrides:
-  virtual void ScrollToPosition(ScrollBar* source, int position) override;
-  virtual int GetScrollIncrement(ScrollBar* source,
-                                 bool is_page,
-                                 bool is_positive) override;
+  void ScrollToPosition(ScrollBar* source, int position) override;
+  int GetScrollIncrement(ScrollBar* source,
+                         bool is_page,
+                         bool is_positive) override;
 
  private:
   FRIEND_TEST_ALL_PREFIXES(ScrollViewTest, CornerViewVisibility);
@@ -211,7 +211,7 @@ class FixedRowHeightScrollHelper : public VariableRowHeightScrollHelper {
 
  protected:
   // Calculates the bounds of the row from the top margin and row height.
-  virtual RowInfo GetRowInfo(int y) override;
+  RowInfo GetRowInfo(int y) override;
 
  private:
   int top_margin_;