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

chrome/browser/extensions/extension_action_manager.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_EXTENSIONS_EXTENSION_ACTION_MANAGER_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_ACTION_MANAGER_H_
 
 #include <map>
 #include <string>
 
 #include "base/scoped_observer.h"
 #include "chrome/common/extensions/api/extension_action/action_info.h"
 #include "components/keyed_service/core/keyed_service.h"
 #include "extensions/browser/extension_registry_observer.h"
 
 class ExtensionAction;
 class Profile;
 
 namespace extensions {
 
 class Extension;
 class ExtensionRegistry;
 
 // Owns the ExtensionActions associated with each extension.  These actions live
 // while an extension is loaded and are destroyed on unload.
 class ExtensionActionManager : public KeyedService,
                                public ExtensionRegistryObserver {
  public:
   explicit ExtensionActionManager(Profile* profile);
-  virtual ~ExtensionActionManager();
+  ~ExtensionActionManager() override;
 
   // Returns this profile's ExtensionActionManager.  One instance is
   // shared between a profile and its incognito version.
   static ExtensionActionManager* Get(content::BrowserContext* browser_context);
 
   // Retrieves the page action, browser action, or system indicator for
   // |extension|.
   // If the result is not NULL, it remains valid until the extension is
   // unloaded.
   ExtensionAction* GetPageAction(const Extension& extension) const;
   ExtensionAction* GetBrowserAction(const Extension& extension) const;
   ExtensionAction* GetSystemIndicator(const Extension& extension) const;
 
   // Returns either the PageAction or BrowserAction for |extension|, or NULL if
   // none exists. Since an extension can only declare one of Browser|PageAction,
   // this is okay to use anywhere you need a generic "ExtensionAction".
   // Since SystemIndicators are used differently and don't follow this
   // rule of mutual exclusion, they are not checked or returned.
   ExtensionAction* GetExtensionAction(const Extension& extension) const;
 
   // Gets the best fit ExtensionAction for the given |extension|. This takes
   // into account |extension|'s browser or page actions, if any, along with its
   // name and any declared icons.
   scoped_ptr<ExtensionAction> GetBestFitAction(
       const Extension& extension, ActionInfo::Type type) const;
 
  private:
   // Implement ExtensionRegistryObserver.
-  virtual void OnExtensionUnloaded(content::BrowserContext* browser_context,
-                                   const Extension* extension,
-                                   UnloadedExtensionInfo::Reason reason)
-      override;
+  void OnExtensionUnloaded(content::BrowserContext* browser_context,
+                           const Extension* extension,
+                           UnloadedExtensionInfo::Reason reason) override;
 
   Profile* profile_;
 
   // Listen to extension unloaded notifications.
   ScopedObserver<ExtensionRegistry, ExtensionRegistryObserver>
       extension_registry_observer_;
 
   // Keyed by Extension ID.  These maps are populated lazily when their
   // ExtensionAction is first requested, and the entries are removed when the
   // extension is unloaded.  Not every extension has a page action or browser
   // action.
   typedef std::map<std::string, linked_ptr<ExtensionAction> > ExtIdToActionMap;
   mutable ExtIdToActionMap page_actions_;
   mutable ExtIdToActionMap browser_actions_;
   mutable ExtIdToActionMap system_indicators_;
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_ACTION_MANAGER_H_