Standardize usage of virtual/override/final in extensions/

extensions/browser/api/storage/settings_test_util.h

 // Copyright 2014 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 EXTENSIONS_BROWSER_API_STORAGE_SETTINGS_TEST_UTIL_H_
 #define EXTENSIONS_BROWSER_API_STORAGE_SETTINGS_TEST_UTIL_H_
 
 #include <set>
 #include <string>
 
@@ skipping 42 matching lines @@
 scoped_refptr<const Extension> AddExtensionWithIdAndPermissions(
     content::BrowserContext* context,
     const std::string& id,
     Manifest::Type type,
     const std::set<std::string>& permissions);
 
 // A MockExtensionSystem to serve an EventRouter.
 class MockExtensionSystemWithEventRouter : public MockExtensionSystem {
  public:
   explicit MockExtensionSystemWithEventRouter(content::BrowserContext* context);
-  virtual ~MockExtensionSystemWithEventRouter();
+  ~MockExtensionSystemWithEventRouter() override;
 
   // Factory method for SetTestingFactoryAndUse.
   static KeyedService* Build(content::BrowserContext* context);
 
   // MockExtensionSystem overrides:
-  virtual EventRouter* event_router() override;
+  EventRouter* event_router() override;
 
  private:
   scoped_ptr<EventRouter> event_router_;
 
   DISALLOW_COPY_AND_ASSIGN(MockExtensionSystemWithEventRouter);
 };
 
 // SettingsStorageFactory which acts as a wrapper for other factories.
 class ScopedSettingsStorageFactory : public SettingsStorageFactory {
  public:
   ScopedSettingsStorageFactory();
 
   explicit ScopedSettingsStorageFactory(
       const scoped_refptr<SettingsStorageFactory>& delegate);
 
   // Sets the delegate factory (equivalent to scoped_ptr::reset).
   void Reset(const scoped_refptr<SettingsStorageFactory>& delegate);
 
   // SettingsStorageFactory implementation.
-  virtual ValueStore* Create(const base::FilePath& base_path,
-                             const std::string& extension_id) override;
-  virtual void DeleteDatabaseIfExists(
-      const base::FilePath& base_path,
-      const std::string& extension_id) override;
+  ValueStore* Create(const base::FilePath& base_path,
+                     const std::string& extension_id) override;
+  void DeleteDatabaseIfExists(const base::FilePath& base_path,
+                              const std::string& extension_id) override;
 
  private:
   // SettingsStorageFactory is refcounted.
-  virtual ~ScopedSettingsStorageFactory();
+  ~ScopedSettingsStorageFactory() override;
 
   scoped_refptr<SettingsStorageFactory> delegate_;
 };
 
 }  // namespace settings_test_util
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_API_STORAGE_SETTINGS_TEST_UTIL_H_