replace OVERRIDE and FINAL with override and final in sync/

sync/syncable/directory_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/syncable/directory_unittest.h"
 
 #include "base/strings/stringprintf.h"
 #include "base/test/values_test_util.h"
 #include "sync/internal_api/public/base/attachment_id_proto.h"
 #include "sync/syncable/syncable_proto_util.h"
@@ skipping 1516 matching lines @@
 class StressTransactionsDelegate : public base::PlatformThread::Delegate {
  public:
   StressTransactionsDelegate(Directory* dir, int thread_number)
       : dir_(dir), thread_number_(thread_number) {}
 
  private:
   Directory* const dir_;
   const int thread_number_;
 
   // PlatformThread::Delegate methods:
-  virtual void ThreadMain() OVERRIDE {
+  virtual void ThreadMain() override {
     int entry_count = 0;
     std::string path_name;
 
     for (int i = 0; i < 20; ++i) {
       const int rand_action = rand() % 10;
       if (rand_action < 4 && !path_name.empty()) {
         ReadTransaction trans(FROM_HERE, dir_);
         CHECK(1 == CountEntriesWithName(&trans, trans.root_id(), path_name));
         base::PlatformThread::Sleep(
             base::TimeDelta::FromMilliseconds(rand() % 10));
@@ skipping 214 matching lines @@
   {
     ReadTransaction trans(FROM_HERE, dir().get());
     dir()->GetAttachmentIdsToUpload(&trans, PREFERENCES, &id_set);
   }
   ASSERT_TRUE(id_set.empty());
 }
 
 }  // namespace syncable
 
 }  // namespace syncer