AttemptToMigrateNigoriToKeystore 1025 sync/internal_api/sync_encryption_handler_impl.cc if (!AttemptToMigrateNigoriToKeystore(trans, &nigori_node)) { AttemptToMigrateNigoriToKeystore 1231 sync/internal_api/sync_encryption_handler_impl.cc if (!AttemptToMigrateNigoriToKeystore(trans, nigori_node)) { AttemptToMigrateNigoriToKeystore 230 sync/internal_api/sync_encryption_handler_impl.h bool AttemptToMigrateNigoriToKeystore(WriteTransaction* trans,