Populate versions on individual nodes in sync model and native bookmark model.

sync/test/null_directory_change_delegate.cc

Index: sync/test/null_directory_change_delegate.cc
diff --git a/sync/test/null_directory_change_delegate.cc b/sync/test/null_directory_change_delegate.cc
index e28fc6a0ea5c84419dab85e3cf7dad2cde6a005d..5fb1fd830d4008f7430af1096418a6d950c19bf8 100644
--- a/sync/test/null_directory_change_delegate.cc
+++ b/sync/test/null_directory_change_delegate.cc
@@ -15,14 +15,12 @@ void NullDirectoryChangeDelegate::HandleCalculateChangesChangeEventFromSyncApi(
 
 void NullDirectoryChangeDelegate::HandleCalculateChangesChangeEventFromSyncer(
     const ImmutableWriteTransactionInfo& write_transaction_info,
-    BaseTransaction* trans) {}
+    BaseTransaction* trans,
+    std::vector<int64> *id_changed) {}
 
-ModelTypeSet
-    NullDirectoryChangeDelegate::HandleTransactionEndingChangeEvent(
-        const ImmutableWriteTransactionInfo& write_transaction_info,
-        BaseTransaction* trans) {
-  return ModelTypeSet();
-}
+void NullDirectoryChangeDelegate::HandleTransactionEndingChangeEvent(
+    const ImmutableWriteTransactionInfo& write_transaction_info,
+    BaseTransaction* trans) {}
 
 void NullDirectoryChangeDelegate::HandleTransactionCompleteChangeEvent(
     ModelTypeSet models_with_changes) {}