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

sync/engine/directory_commit_contribution_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/directory_commit_contribution.h"
 
 #include "base/message_loop/message_loop.h"
 #include "sync/internal_api/public/base/attachment_id_proto.h"
 #include "sync/sessions/status_controller.h"
 #include "sync/syncable/entry.h"
 #include "sync/syncable/mutable_entry.h"
 #include "sync/syncable/syncable_read_transaction.h"
 #include "sync/syncable/syncable_write_transaction.h"
 #include "sync/test/engine/test_directory_setter_upper.h"
 #include "sync/test/engine/test_id_factory.h"
 #include "sync/test/engine/test_syncable_utils.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace syncer {
 
 class DirectoryCommitContributionTest : public ::testing::Test {
  public:
-  virtual void SetUp() override {
+  void SetUp() override {
     dir_maker_.SetUp();
 
     syncable::WriteTransaction trans(FROM_HERE, syncable::UNITTEST, dir());
     CreateTypeRoot(&trans, dir(), PREFERENCES);
     CreateTypeRoot(&trans, dir(), EXTENSIONS);
     CreateTypeRoot(&trans, dir(), ARTICLES);
     CreateTypeRoot(&trans, dir(), BOOKMARKS);
   }
 
-  virtual void TearDown() override {
-    dir_maker_.TearDown();
-  }
+  void TearDown() override { dir_maker_.TearDown(); }
 
  protected:
   int64 CreateUnsyncedItemWithAttachments(
       syncable::WriteTransaction* trans,
       ModelType type,
       const std::string& tag,
       const sync_pb::AttachmentMetadata& attachment_metadata) {
     syncable::Entry parent_entry(trans, syncable::GET_TYPE_ROOT, type);
     syncable::MutableEntry entry(
         trans,
@@ skipping 449 matching lines @@
     syncable::Entry a3(&trans, syncable::GET_BY_HANDLE, art3_handle);
     EXPECT_FALSE(a3.GetId().ServerKnows());
     EXPECT_FALSE(a3.GetSyncing());
     EXPECT_EQ(0, a3.GetServerVersion());
   }
 
   art_cc->CleanUp();
 }
 
 }  // namespace syncer