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

sync/test/null_directory_change_delegate.h

Index: sync/test/null_directory_change_delegate.h
diff --git a/sync/test/null_directory_change_delegate.h b/sync/test/null_directory_change_delegate.h
index 4fdba374004782207c2f96a90d4a2685a882198a..028a625491cdfdb215cfca2a672270109013d9fb 100644
--- a/sync/test/null_directory_change_delegate.h
+++ b/sync/test/null_directory_change_delegate.h
@@ -18,10 +18,12 @@ class NullDirectoryChangeDelegate : public DirectoryChangeDelegate {
 
   virtual void HandleCalculateChangesChangeEventFromSyncApi(
       const ImmutableWriteTransactionInfo& write_transaction_info,
-      BaseTransaction* trans) OVERRIDE;
+      BaseTransaction* trans,
+      std::vector<int64>* entry_changed) OVERRIDE;
   virtual void HandleCalculateChangesChangeEventFromSyncer(
       const ImmutableWriteTransactionInfo& write_transaction_info,
-      BaseTransaction* trans) OVERRIDE;
+      BaseTransaction* trans,
+      std::vector<int64>* entry_changed) OVERRIDE;
   virtual ModelTypeSet HandleTransactionEndingChangeEvent(
       const ImmutableWriteTransactionInfo& write_transaction_info,
       BaseTransaction* trans) OVERRIDE;