Standardize usage of virtual/override/final specifiers.

components/signin/core/browser/mutable_profile_oauth2_token_service_unittest.cc

 // 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.
 
 #include "components/signin/core/browser/mutable_profile_oauth2_token_service.h"
 
 #include "base/run_loop.h"
 #include "components/signin/core/browser/profile_oauth2_token_service.h"
 #include "components/signin/core/browser/signin_error_controller.h"
 #include "components/signin/core/browser/test_signin_client.h"
@@ skipping 19 matching lines @@
       public OAuth2TokenService::Observer {
  public:
   MutableProfileOAuth2TokenServiceTest()
       : factory_(NULL),
         token_available_count_(0),
         token_revoked_count_(0),
         tokens_loaded_count_(0),
         start_batch_changes_(0),
         end_batch_changes_(0) {}
 
-  virtual void SetUp() override {
+  void SetUp() override {
 #if defined(OS_MACOSX)
     OSCrypt::UseMockKeychain(true);
 #endif
 
     factory_.SetFakeResponse(GaiaUrls::GetInstance()->oauth2_revoke_url(),
                              "",
                              net::HTTP_OK,
                              net::URLRequestStatus::SUCCESS);
     oauth2_service_.Initialize(&client_);
     // Make sure PO2TS has a chance to load itself before continuing.
     base::RunLoop().RunUntilIdle();
     oauth2_service_.AddObserver(this);
   }
 
-  virtual void TearDown() override {
+  void TearDown() override {
     oauth2_service_.RemoveObserver(this);
     oauth2_service_.Shutdown();
   }
 
   void AddAuthTokenManually(const std::string& service,
                             const std::string& value) {
     scoped_refptr<TokenWebData> token_web_data = client_.GetDatabase();
     if (token_web_data.get())
       token_web_data->SetTokenForService(service, value);
   }
@@ skipping 304 matching lines @@
   tokens["AccountId-user@gmail.com"] = "refresh_token";
   tokens["AccountId-Foo.Bar@gmail.com"] = "refresh_token";
   tokens["AccountId-12345"] = "refresh_token";
 
   oauth2_service_.LoadAllCredentialsIntoMemory(tokens);
 
   EXPECT_TRUE(oauth2_service_.RefreshTokenIsAvailable("user@gmail.com"));
   EXPECT_TRUE(oauth2_service_.RefreshTokenIsAvailable("foobar@gmail.com"));
   EXPECT_TRUE(oauth2_service_.RefreshTokenIsAvailable("12345"));
 }