Standardize usage of virtual/override/final in ui/

ui/message_center/message_center_tray.h

 // 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.
 
 #ifndef UI_MESSAGE_CENTER_MESSAGE_CENTER_TRAY_H_
 #define UI_MESSAGE_CENTER_MESSAGE_CENTER_TRAY_H_
 
 #include "base/observer_list.h"
 #include "base/strings/string16.h"
 #include "ui/message_center/message_center_export.h"
@@ skipping 16 matching lines @@
 // MessageCenterTrayDelegate.
 MessageCenterTrayDelegate* CreateMessageCenterTray();
 
 // Class that observes a MessageCenter. Manages the popup and message center
 // bubbles. Tells the MessageCenterTrayHost when the tray is changed, as well
 // as when bubbles are shown and hidden.
 class MESSAGE_CENTER_EXPORT MessageCenterTray : public MessageCenterObserver {
  public:
   MessageCenterTray(MessageCenterTrayDelegate* delegate,
                     message_center::MessageCenter* message_center);
-  virtual ~MessageCenterTray();
+  ~MessageCenterTray() override;
 
   // Shows or updates the message center bubble and hides the popup bubble.
   // Returns whether the message center is visible after the call, whether or
   // not it was visible before.
   bool ShowMessageCenterBubble();
 
   // Hides the message center if visible and returns whether the message center
   // was visible before.
   bool HideMessageCenterBubble();
 
@@ skipping 19 matching lines @@
 
   bool message_center_visible() { return message_center_visible_; }
   bool popups_visible() { return popups_visible_; }
   MessageCenterTrayDelegate* delegate() { return delegate_; }
   const message_center::MessageCenter* message_center() const {
     return message_center_;
   }
   message_center::MessageCenter* message_center() { return message_center_; }
 
   // Overridden from MessageCenterObserver:
-  virtual void OnNotificationAdded(const std::string& notification_id) override;
-  virtual void OnNotificationRemoved(const std::string& notification_id,
-                                     bool by_user) override;
-  virtual void OnNotificationUpdated(
-      const std::string& notification_id) override;
-  virtual void OnNotificationClicked(
-      const std::string& notification_id) override;
-  virtual void OnNotificationButtonClicked(
-      const std::string& notification_id,
-      int button_index) override;
-  virtual void OnNotificationDisplayed(
-      const std::string& notification_id,
-      const DisplaySource source) override;
-  virtual void OnQuietModeChanged(bool in_quiet_mode) override;
-  virtual void OnBlockingStateChanged(NotificationBlocker* blocker) override;
+  void OnNotificationAdded(const std::string& notification_id) override;
+  void OnNotificationRemoved(const std::string& notification_id,
+                             bool by_user) override;
+  void OnNotificationUpdated(const std::string& notification_id) override;
+  void OnNotificationClicked(const std::string& notification_id) override;
+  void OnNotificationButtonClicked(const std::string& notification_id,
+                                   int button_index) override;
+  void OnNotificationDisplayed(const std::string& notification_id,
+                               const DisplaySource source) override;
+  void OnQuietModeChanged(bool in_quiet_mode) override;
+  void OnBlockingStateChanged(NotificationBlocker* blocker) override;
 
  private:
   void OnMessageCenterChanged();
   void NotifyMessageCenterTrayChanged();
   void HidePopupBubbleInternal();
 
   // |message_center_| is a weak pointer that must live longer than
   // MessageCenterTray.
   message_center::MessageCenter* message_center_;
   bool message_center_visible_;
   bool popups_visible_;
   // |delegate_| is a weak pointer that must live longer than MessageCenterTray.
   MessageCenterTrayDelegate* delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(MessageCenterTray);
 };
 
 }  // namespace message_center
 
 #endif  // UI_MESSAGE_CENTER_MESSAGE_CENTER_TRAY_H_