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

chrome/browser/supervised_user/supervised_user_settings_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 "base/bind.h"
 #include "base/callback.h"
 #include "base/json/json_reader.h"
 #include "base/prefs/testing_pref_store.h"
 #include "base/strings/string_util.h"
 #include "chrome/browser/supervised_user/supervised_user_settings_service.h"
 #include "sync/api/fake_sync_change_processor.h"
 #include "sync/api/sync_change.h"
 #include "sync/api/sync_change_processor_wrapper_for_test.h"
 #include "sync/api/sync_error_factory_mock.h"
 #include "sync/protocol/sync.pb.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace {
 
 class MockSyncErrorFactory : public syncer::SyncErrorFactory {
  public:
   explicit MockSyncErrorFactory(syncer::ModelType type);
-  virtual ~MockSyncErrorFactory();
+  ~MockSyncErrorFactory() override;
 
   // SyncErrorFactory implementation:
-  virtual syncer::SyncError CreateAndUploadError(
+  syncer::SyncError CreateAndUploadError(
       const tracked_objects::Location& location,
       const std::string& message) override;
 
  private:
   syncer::ModelType type_;
 
   DISALLOW_COPY_AND_ASSIGN(MockSyncErrorFactory);
 };
 
 MockSyncErrorFactory::MockSyncErrorFactory(syncer::ModelType type)
@@ skipping 245 matching lines @@
   // The uploaded items should not show up as settings.
   const base::Value* value = NULL;
   EXPECT_FALSE(settings_->GetWithoutPathExpansion(kAtomicItemName, &value));
   EXPECT_FALSE(settings_->GetWithoutPathExpansion(kSplitItemName, &value));
 
   // Restarting sync should not create any new changes.
   settings_service_.StopSyncing(syncer::SUPERVISED_USER_SETTINGS);
   StartSyncing(sync_data);
   ASSERT_EQ(0u, sync_processor_->changes().size());
 }