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

chrome/browser/extensions/plugin_manager.h

 // Copyright 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 CHROME_BROWSER_EXTENSIONS_PLUGIN_MANAGER_H_
 #define CHROME_BROWSER_EXTENSIONS_PLUGIN_MANAGER_H_
 
 #include <set>
 #include <string>
 
 #include "base/scoped_observer.h"
 #include "extensions/browser/browser_context_keyed_api_factory.h"
 #include "extensions/browser/extension_registry_observer.h"
 #include "extensions/common/manifest_handlers/nacl_modules_handler.h"
 
 class GURL;
 class Profile;
 
 namespace content {
 class BrowserContext;
 }
 
 namespace extensions {
 class ExtensionRegistry;
 
 class PluginManager : public BrowserContextKeyedAPI,
                       public ExtensionRegistryObserver {
  public:
   explicit PluginManager(content::BrowserContext* context);
-  virtual ~PluginManager();
+  ~PluginManager() override;
 
   // BrowserContextKeyedAPI implementation.
   static BrowserContextKeyedAPIFactory<PluginManager>* GetFactoryInstance();
 
  private:
   friend class BrowserContextKeyedAPIFactory<PluginManager>;
 
 #if !defined(DISABLE_NACL)
 
   // We implement some Pepper plug-ins using NaCl to take advantage of NaCl's
   // strong sandbox. Typically, these NaCl modules are stored in extensions
   // and registered here. Not all NaCl modules need to register for a MIME
   // type, just the ones that are responsible for rendering a particular MIME
   // type, like application/pdf. Note: We only register NaCl modules in the
   // browser process.
   void RegisterNaClModule(const NaClModuleInfo& info);
   void UnregisterNaClModule(const NaClModuleInfo& info);
 
   // Call UpdatePluginListWithNaClModules() after registering or unregistering
   // a NaCl module to see those changes reflected in the PluginList.
   void UpdatePluginListWithNaClModules();
 
   extensions::NaClModuleInfo::List::iterator FindNaClModule(const GURL& url);
 
 #endif  // !defined(DISABLE_NACL)
 
   // ExtensionRegistryObserver implementation.
-  virtual void OnExtensionLoaded(content::BrowserContext* browser_context,
-                                 const Extension* extension) override;
-  virtual void OnExtensionUnloaded(
-      content::BrowserContext* browser_context,
-      const Extension* extension,
-      UnloadedExtensionInfo::Reason reason) override;
+  void OnExtensionLoaded(content::BrowserContext* browser_context,
+                         const Extension* extension) override;
+  void OnExtensionUnloaded(content::BrowserContext* browser_context,
+                           const Extension* extension,
+                           UnloadedExtensionInfo::Reason reason) override;
 
   // BrowserContextKeyedAPI implementation.
   static const char* service_name() { return "PluginManager"; }
   static const bool kServiceIsNULLWhileTesting = true;
 
   extensions::NaClModuleInfo::List nacl_module_list_;
 
   Profile* profile_;
 
   // Listen to extension load, unloaded notifications.
   ScopedObserver<ExtensionRegistry, ExtensionRegistryObserver>
       extension_registry_observer_;
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_PLUGIN_MANAGER_H_