Standardize usage of virtual/override/final specifiers in sync/.

sync/engine/syncer_util_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 "sync/engine/syncer_util.h"
 
 #include "base/rand_util.h"
 #include "sync/internal_api/public/base/unique_position.h"
 #include "sync/internal_api/public/test/test_entry_factory.h"
 #include "sync/protocol/sync.pb.h"
 #include "sync/syncable/mutable_entry.h"
 #include "sync/syncable/syncable_write_transaction.h"
 #include "sync/test/engine/test_directory_setter_upper.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace syncer {
 
 class GetUpdatePositionTest : public ::testing::Test {
  public:
-  virtual void SetUp() {
+  void SetUp() override {
     dir_maker_.SetUp();
     entry_factory_.reset(new TestEntryFactory(directory()));
   }
 
-  virtual void TearDown() {
-    dir_maker_.TearDown();
-  }
+  void TearDown() override { dir_maker_.TearDown(); }
 
   syncable::Directory* directory() {
     return dir_maker_.directory();
   }
 
   TestEntryFactory* entry_factory() {
     return entry_factory_.get();
   }
 
   GetUpdatePositionTest() {
@@ skipping 159 matching lines @@
   EXPECT_FALSE(UniquePosition::IsValidSuffix(target.GetUniqueBookmarkTag()));
   EXPECT_FALSE(target.GetServerUniquePosition().IsValid());
   UpdateServerFieldsFromUpdate(&target, update, "name");
 
   // After update, target has valid bookmark tag and unique position.
   EXPECT_TRUE(UniquePosition::IsValidSuffix(target.GetUniqueBookmarkTag()));
   EXPECT_TRUE(target.GetServerUniquePosition().IsValid());
 }
 
 }  // namespace syncer