replace OVERRIDE and FINAL with override and final in sync/

sync/syncable/directory_backing_store_unittest.cc

 // Copyright 2012 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 "testing/gtest/include/gtest/gtest.h"
 
 #include <string>
 
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
@@ skipping 3822 matching lines @@
 namespace {
 
 class OnDiskDirectoryBackingStoreForTest : public OnDiskDirectoryBackingStore {
  public:
   OnDiskDirectoryBackingStoreForTest(const std::string& dir_name,
                                      const base::FilePath& backing_filepath);
   virtual ~OnDiskDirectoryBackingStoreForTest();
   bool DidFailFirstOpenAttempt();
 
  protected:
-  virtual void ReportFirstTryOpenFailure() OVERRIDE;
+  virtual void ReportFirstTryOpenFailure() override;
 
  private:
   bool first_open_failed_;
 };
 
 OnDiskDirectoryBackingStoreForTest::OnDiskDirectoryBackingStoreForTest(
     const std::string& dir_name,
     const base::FilePath& backing_filepath) :
   OnDiskDirectoryBackingStore(dir_name, backing_filepath),
   first_open_failed_(false) { }
@@ skipping 96 matching lines @@
   const std::string& guid2 = TestDirectoryBackingStore::GenerateCacheGUID();
   EXPECT_EQ(24U, guid1.size());
   EXPECT_EQ(24U, guid2.size());
   // In theory this test can fail, but it won't before the universe
   // dies of heat death.
   EXPECT_NE(guid1, guid2);
 }
 
 }  // namespace syncable
 }  // namespace syncer