Standardize usage of virtual/override/final in extensions/

extensions/browser/test_extension_registry_observer.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_TEST_EXTENSION_REGISTRY_OBSERVER_H_
 #define EXTENSIONS_BROWSER_TEST_EXTENSION_REGISTRY_OBSERVER_H_
 
 #include "base/scoped_observer.h"
 #include "extensions/browser/extension_registry_observer.h"
 
 namespace extensions {
 class ExtensionRegistry;
 
 // A helper class that listen for ExtensionRegistry notifications.
 class TestExtensionRegistryObserver : public ExtensionRegistryObserver {
  public:
   explicit TestExtensionRegistryObserver(ExtensionRegistry* registry,
                                          const std::string& extension_id);
-  virtual ~TestExtensionRegistryObserver();
+  ~TestExtensionRegistryObserver() override;
 
   void WaitForExtensionWillBeInstalled();
   void WaitForExtensionUninstalled();
   void WaitForExtensionLoaded();
   void WaitForExtensionUnloaded();
 
  private:
   class Waiter;
 
   // ExtensionRegistryObserver.
-  virtual void OnExtensionWillBeInstalled(
-      content::BrowserContext* browser_context,
-      const Extension* extension,
-      bool is_update,
-      bool from_ephemeral,
-      const std::string& old_name) override;
-  virtual void OnExtensionUninstalled(
-      content::BrowserContext* browser_context,
-      const Extension* extension,
-      extensions::UninstallReason reason) override;
-  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 OnExtensionWillBeInstalled(content::BrowserContext* browser_context,
+                                  const Extension* extension,
+                                  bool is_update,
+                                  bool from_ephemeral,
+                                  const std::string& old_name) override;
+  void OnExtensionUninstalled(content::BrowserContext* browser_context,
+                              const Extension* extension,
+                              extensions::UninstallReason 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;
 
   scoped_ptr<Waiter> will_be_installed_waiter_;
   scoped_ptr<Waiter> uninstalled_waiter_;
   scoped_ptr<Waiter> loaded_waiter_;
   scoped_ptr<Waiter> unloaded_waiter_;
 
   ScopedObserver<ExtensionRegistry, ExtensionRegistryObserver>
       extension_registry_observer_;
 
   std::string extension_id_;
 
   DISALLOW_COPY_AND_ASSIGN(TestExtensionRegistryObserver);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_TEST_EXTENSION_REGISTRY_OBSERVER_H_