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

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

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #import "chrome/browser/ui/cocoa/toolbar/wrench_toolbar_button_cell.h"
 
 #import "chrome/browser/ui/cocoa/themed_window.h"
 #include "ui/gfx/canvas_skia_paint.h"
 #include "ui/gfx/rect.h"
 
 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];
   }
 
  private:
   NSCell* cell_;
 
   DISALLOW_COPY_AND_ASSIGN(WrenchIconPainterDelegateMac);
 };
 
 @interface WrenchToolbarButtonCell ()
@@ skipping 46 matching lines @@
 
 - (WrenchIconPainter::BezelType)currentBezelType {
   if ([self isHighlighted])
     return WrenchIconPainter::BEZEL_PRESSED;
   if ([self isMouseInside])
     return WrenchIconPainter::BEZEL_HOVER;
   return WrenchIconPainter::BEZEL_NONE;
 }
 
 @end