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

chrome/browser/signin/fake_signin_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_SIGNIN_FAKE_SIGNIN_MANAGER_H_
 #define CHROME_BROWSER_SIGNIN_FAKE_SIGNIN_MANAGER_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
 #include "components/signin/core/browser/signin_manager.h"
 #include "components/signin/core/browser/signin_metrics.h"
 
 namespace content {
 class BrowserContext;
 }
 
 class Profile;
 
 // SigninManager to use for testing. Tests should use the type
 // SigninManagerForTesting to ensure that the right type for their platform is
 // used.
 
 // Overrides InitTokenService to do-nothing in tests.
 class FakeSigninManagerBase : public SigninManagerBase {
  public:
   explicit FakeSigninManagerBase(Profile* profile);
-  virtual ~FakeSigninManagerBase();
+  ~FakeSigninManagerBase() override;
 
   // Helper function to be used with
   // KeyedService::SetTestingFactory(). In order to match
   // the API of SigninManagerFactory::GetForProfile(), returns a
   // FakeSigninManagerBase* on ChromeOS, and a FakeSigninManager* on all other
   // platforms. The returned instance is initialized.
   static KeyedService* Build(content::BrowserContext* context);
 };
 
 #if !defined(OS_CHROMEOS)
 
 // A signin manager that bypasses actual authentication routines with servers
 // and accepts the credentials provided to StartSignIn.
 class FakeSigninManager : public SigninManager {
  public:
   explicit FakeSigninManager(Profile* profile);
-  virtual ~FakeSigninManager();
+  ~FakeSigninManager() override;
 
   void set_auth_in_progress(const std::string& username) {
     possibly_invalid_username_ = username;
   }
 
   void set_password(const std::string& password) { password_ = password; }
 
   void SignIn(const std::string& username, const std::string& password);
 
   void FailSignin(const GoogleServiceAuthError& error);
 
-  virtual void StartSignInWithRefreshToken(
+  void StartSignInWithRefreshToken(
       const std::string& refresh_token,
       const std::string& username,
       const std::string& password,
       const OAuthTokenFetchedCallback& oauth_fetched_callback) override;
 
-  virtual void SignOut(signin_metrics::ProfileSignout signout_source_metric)
-      override;
+  void SignOut(signin_metrics::ProfileSignout signout_source_metric) override;
 
-  virtual void CompletePendingSignin() override;
+  void CompletePendingSignin() override;
 };
 
 #endif  // !defined (OS_CHROMEOS)
 
 #if defined(OS_CHROMEOS)
 typedef FakeSigninManagerBase FakeSigninManagerForTesting;
 #else
 typedef FakeSigninManager FakeSigninManagerForTesting;
 #endif
 
 #endif  // CHROME_BROWSER_SIGNIN_FAKE_SIGNIN_MANAGER_H_