replace OVERRIDE and FINAL with override and final in sync/

sync/test/fake_server/tombstone_entity.h

Index: sync/test/fake_server/tombstone_entity.h
diff --git a/sync/test/fake_server/tombstone_entity.h b/sync/test/fake_server/tombstone_entity.h
index b66d82146c8c8b77aa49998424b464f4953d5c50..e7f86db2d65f829f2e33bb31d27798939d603fcd 100644
--- a/sync/test/fake_server/tombstone_entity.h
+++ b/sync/test/fake_server/tombstone_entity.h
@@ -23,10 +23,10 @@ class TombstoneEntity : public FakeServerEntity {
   static FakeServerEntity* Create(const std::string& id);
 
   // FakeServerEntity implementation.
-  virtual std::string GetParentId() const OVERRIDE;
-  virtual void SerializeAsProto(sync_pb::SyncEntity* proto) OVERRIDE;
-  virtual bool IsDeleted() const OVERRIDE;
-  virtual bool IsFolder() const OVERRIDE;
+  virtual std::string GetParentId() const override;
+  virtual void SerializeAsProto(sync_pb::SyncEntity* proto) override;
+  virtual bool IsDeleted() const override;
+  virtual bool IsFolder() const override;
 
  private:
   TombstoneEntity(const std::string& id, const syncer::ModelType& model_type);