Standardize usage of virtual/override/final specifiers.

components/signin/core/browser/account_tracker_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 <algorithm>
 #include <vector>
 
 #include "base/message_loop/message_loop.h"
 #include "base/prefs/pref_registry_simple.h"
 #include "base/prefs/testing_pref_service.h"
@@ skipping 174 matching lines @@
   events_.clear();
   return result;
 }
 
 }  // namespace
 
 class AccountTrackerServiceTest : public testing::Test {
  public:
   AccountTrackerServiceTest() {}
 
-  virtual ~AccountTrackerServiceTest() {}
+  ~AccountTrackerServiceTest() override {}
 
-  virtual void SetUp() override {
+  void SetUp() override {
     fake_oauth2_token_service_.reset(new FakeOAuth2TokenService());
 
     pref_service_.registry()->RegisterListPref(
         AccountTrackerService::kAccountInfoPref);
     pref_service_.registry()->RegisterIntegerPref(
         prefs::kAccountIdMigrationState,
         AccountTrackerService::MIGRATION_NOT_STARTED);
 
     account_tracker_.reset(new AccountTrackerService());
     account_tracker_->Initialize(fake_oauth2_token_service_.get(),
                                  &pref_service_,
                                  new net::TestURLRequestContextGetter(
                                      message_loop_.message_loop_proxy()));
     account_tracker_->AddObserver(&observer_);
   }
 
-  virtual void TearDown() override {
+  void TearDown() override {
     account_tracker_->RemoveObserver(&observer_);
     account_tracker_->Shutdown();
   }
 
   void SimulateTokenAvailable(const std::string& account_id) {
     fake_oauth2_token_service_->AddAccount(account_id);
   }
 
   void SimulateTokenRevoked(const std::string& account_id) {
     fake_oauth2_token_service_->RemoveAccount(account_id);
@@ skipping 295 matching lines @@
   const std::string account_id =
       account_tracker()->PickAccountIdForAccount(gaia_id, email);
   account_tracker()->SeedAccountInfo(gaia_id, email);
 
   infos = account_tracker()->GetAccounts();
   EXPECT_EQ(1u, infos.size());
   EXPECT_EQ(account_id, infos[0].account_id);
   EXPECT_EQ(gaia_id, infos[0].gaia);
   EXPECT_EQ(email, infos[0].email);
 }