Passing correct passhprase type in the generic change processor.

components/sync/core/base_transaction.cc

Index: components/sync/core/base_transaction.cc
diff --git a/components/sync/core/base_transaction.cc b/components/sync/core/base_transaction.cc
index ca61433b5c0ac49182e81559c2404d949f59b7f7..dcf7e0dd9d3048b832dbd5124ea55e7c4409a54a 100644
--- a/components/sync/core/base_transaction.cc
+++ b/components/sync/core/base_transaction.cc
@@ -5,6 +5,7 @@
 #include "components/sync/core/base_transaction.h"
 
 #include "components/sync/base/cryptographer.h"
+#include "components/sync/base/passphrase_type.h"
 #include "components/sync/syncable/directory.h"
 #include "components/sync/syncable/nigori_handler.h"
 
@@ -29,4 +30,12 @@ ModelTypeSet BaseTransaction::GetEncryptedTypes() const {
              : ModelTypeSet();
 }
 
+PassphraseType BaseTransaction::GetPassphraseType() const {
+  syncable::NigoriHandler* nigori_handler = GetDirectory()->GetNigoriHandler();
+  return nigori_handler
+             ? nigori_handler->GetPassphraseType(this->GetWrappedTrans())
+             : syncer::PassphraseType::UNDEFINED;
+}
+
+
 }  // namespace syncer