Standardize usage of virtual/override/final specifiers.

chrome/browser/ui/views/critical_notification_bubble_view.h

 // Copyright (c) 2012 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.
 
 #ifndef CHROME_BROWSER_UI_VIEWS_CRITICAL_NOTIFICATION_BUBBLE_VIEW_H_
 #define CHROME_BROWSER_UI_VIEWS_CRITICAL_NOTIFICATION_BUBBLE_VIEW_H_
 
 #include "base/timer/timer.h"
 #include "ui/views/bubble/bubble_delegate.h"
 #include "ui/views/controls/button/button.h"
 
 namespace ui {
 class Accelerator;
 }
 
 namespace views {
 class Label;
 class LabelButton;
 }
 
 class CriticalNotificationBubbleView : public views::BubbleDelegateView,
                                        public views::ButtonListener {
  public:
   explicit CriticalNotificationBubbleView(views::View* anchor_view);
-  virtual ~CriticalNotificationBubbleView();
+  ~CriticalNotificationBubbleView() override;
 
   // views::ButtonListener overrides:
-  virtual void ButtonPressed(views::Button* sender,
-                             const ui::Event& event) override;
+  void ButtonPressed(views::Button* sender, const ui::Event& event) override;
 
   // views::WidgetDelegate overrides:
-  virtual void WindowClosing() override;
+  void WindowClosing() override;
 
   // views::View overrides:
-  virtual void GetAccessibleState(ui::AXViewState* state) override;
-  virtual void ViewHierarchyChanged(
+  void GetAccessibleState(ui::AXViewState* state) override;
+  void ViewHierarchyChanged(
       const ViewHierarchyChangedDetails& details) override;
 
  protected:
   // views::BubbleDelegateView overrides:
-  virtual bool AcceleratorPressed(
-      const ui::Accelerator& accelerator) override;
-  virtual void Init() override;
+  bool AcceleratorPressed(const ui::Accelerator& accelerator) override;
+  void Init() override;
 
  private:
   // Helper function to calculate the remaining time (in seconds) until
   // spontaneous reboot.
   int GetRemainingTime();
 
   // Helper function to set the headline for the bubble.
   void UpdateBubbleHeadline(int seconds);
 
   // Called when the timer fires each time the clock ticks.
   void OnCountdown();
 
   // The headline and buttons on the bubble.
   views::Label* headline_;
   views::LabelButton* restart_button_;
   views::LabelButton* dismiss_button_;
 
   // A timer to refresh the bubble to show new countdown value.
   base::RepeatingTimer<CriticalNotificationBubbleView> refresh_timer_;
 
   // When the bubble was created.
   base::Time bubble_created_;
 
   DISALLOW_COPY_AND_ASSIGN(CriticalNotificationBubbleView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_CRITICAL_NOTIFICATION_BUBBLE_VIEW_H_