[sync] Add constexpr to EnumSet

components/sync/engine_impl/sync_encryption_handler_impl_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 "components/sync/engine_impl/sync_encryption_handler_impl.h"
 
 #include <stdint.h>
 
 #include <memory>
 
@@ skipping 517 matching lines @@
 
   // Data for testing encryption/decryption.
   Cryptographer other_cryptographer(GetCryptographer()->encryptor());
   other_cryptographer.AddKey(old_key);
   sync_pb::EntitySpecifics other_encrypted_specifics;
   other_encrypted_specifics.mutable_bookmark()->set_title("title");
   other_cryptographer.Encrypt(other_encrypted_specifics,
                               other_encrypted_specifics.mutable_encrypted());
   sync_pb::EntitySpecifics our_encrypted_specifics;
   our_encrypted_specifics.mutable_bookmark()->set_title("title2");
-  ModelTypeSet encrypted_types = EncryptableUserTypes();
 
   // Set up the current encryption state (containing both keys and encrypt
   // everything).
   sync_pb::NigoriSpecifics current_nigori_specifics;
   GetCryptographer()->AddKey(old_key);
   GetCryptographer()->AddKey(current_key);
   GetCryptographer()->Encrypt(our_encrypted_specifics,
                               our_encrypted_specifics.mutable_encrypted());
   GetCryptographer()->GetKeys(
       current_nigori_specifics.mutable_encryption_keybag());
@@ skipping 1749 matching lines @@
   EXPECT_CALL(*observer(),
               OnBootstrapTokenUpdated(_, KEYSTORE_BOOTSTRAP_TOKEN));
   {
     ReadTransaction trans(FROM_HERE, user_share());
     encryption_handler()->SetKeystoreKeys(
         BuildEncryptionKeyProto(kRawKeystoreKey), trans.GetWrappedTrans());
   }
 }
 
 }  // namespace syncer