Standardize usage of virtual/override/final in chrome/browser/ui/

chrome/browser/ui/cocoa/toolbar/wrench_toolbar_button_cell.mm

Index: chrome/browser/ui/cocoa/toolbar/wrench_toolbar_button_cell.mm
diff --git a/chrome/browser/ui/cocoa/toolbar/wrench_toolbar_button_cell.mm b/chrome/browser/ui/cocoa/toolbar/wrench_toolbar_button_cell.mm
index adae572a006e7d2bf11efcd200f2fe4d6bf4cb52..e7ccb9e5c9ae7bed00a9404555f32b2b3148722a 100644
--- a/chrome/browser/ui/cocoa/toolbar/wrench_toolbar_button_cell.mm
+++ b/chrome/browser/ui/cocoa/toolbar/wrench_toolbar_button_cell.mm
@@ -11,9 +11,9 @@
 class WrenchIconPainterDelegateMac : public WrenchIconPainter::Delegate {
  public:
   explicit WrenchIconPainterDelegateMac(NSCell* cell) : cell_(cell) {}
-  virtual ~WrenchIconPainterDelegateMac() {}
+  ~WrenchIconPainterDelegateMac() override {}
 
-  virtual void ScheduleWrenchIconPaint() override {
+  void ScheduleWrenchIconPaint() override {
     [[cell_ controlView] setNeedsDisplay:YES];
   }