Thread-safe version of PassphraseType.

components/sync/test/fake_sync_encryption_handler.cc

Index: components/sync/test/fake_sync_encryption_handler.cc
diff --git a/components/sync/test/fake_sync_encryption_handler.cc b/components/sync/test/fake_sync_encryption_handler.cc
index 1ae13d29e55d427fe4570f733d03f9fdfc3fc543..c88014cad90ced370cddbcb16b75e840f67544ea 100644
--- a/components/sync/test/fake_sync_encryption_handler.cc
+++ b/components/sync/test/fake_sync_encryption_handler.cc
@@ -119,7 +119,8 @@ bool FakeSyncEncryptionHandler::IsEncryptEverythingEnabled() const {
   return encrypt_everything_;
 }
 
-PassphraseType FakeSyncEncryptionHandler::GetPassphraseType() const {
+PassphraseType FakeSyncEncryptionHandler::GetPassphraseType(
+    syncable::BaseTransaction* const trans) const {
   return passphrase_type_;
 }