#ifndef COMPONENTS_SYNC_ENGINE_SYNC_ENCRYPTION_HANDLER_H_
#define COMPONENTS_SYNC_ENGINE_SYNC_ENCRYPTION_HANDLER_H_
#include <memory>
#include <string>
#include <vector>
#include "base/observer_list_types.h"
#include "base/time/time.h"
#include "components/sync/base/data_type.h"
#include "components/sync/base/passphrase_enums.h"
#include "components/sync/engine/nigori/key_derivation_params.h"
namespace sync_pb {
class EncryptedData;
class NigoriSpecifics_TrustedVaultDebugInfo;
}
namespace syncer {
class Cryptographer;
class KeystoreKeysHandler;
class Nigori;
enum class PassphraseType;
class SyncEncryptionHandler { … };
}
#endif