replace OVERRIDE and FINAL with override and final in sync/

sync/internal_api/public/attachments/fake_attachment_uploader.h

 // 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.
 
 #ifndef SYNC_INTERNAL_API_PUBLIC_ATTACHMENTS_FAKE_ATTACHMENT_UPLOADER_H_
 #define SYNC_INTERNAL_API_PUBLIC_ATTACHMENTS_FAKE_ATTACHMENT_UPLOADER_H_
 
 #include "base/threading/non_thread_safe.h"
 #include "sync/internal_api/public/attachments/attachment_uploader.h"
 
 namespace syncer {
 
 // A fake implementation of AttachmentUploader.
 class SYNC_EXPORT FakeAttachmentUploader : public AttachmentUploader,
                                            public base::NonThreadSafe {
  public:
   FakeAttachmentUploader();
   virtual ~FakeAttachmentUploader();
 
   // AttachmentUploader implementation.
   virtual void UploadAttachment(const Attachment& attachment,
-                                const UploadCallback& callback) OVERRIDE;
+                                const UploadCallback& callback) override;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(FakeAttachmentUploader);
 };
 
 }  // namespace syncer
 
 #endif  // SYNC_INTERNAL_API_PUBLIC_ATTACHMENTS_FAKE_ATTACHMENT_UPLOADER_H_