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

sync/syncable/directory_change_delegate.h

Index: sync/syncable/directory_change_delegate.h
diff --git a/sync/syncable/directory_change_delegate.h b/sync/syncable/directory_change_delegate.h
index 2afd6210009ebe59d879c6a919fbb61541f04c82..5c9ad695d4b14d8a0fc9b8babcfc0114029ee804 100644
--- a/sync/syncable/directory_change_delegate.h
+++ b/sync/syncable/directory_change_delegate.h
@@ -23,12 +23,16 @@ namespace syncable {
 // Note that these methods may be called on *any* thread.
 class DirectoryChangeDelegate {
  public:
+  // Returns the handles of changed entries in |entry_changed|.
   virtual void HandleCalculateChangesChangeEventFromSyncApi(
       const ImmutableWriteTransactionInfo& write_transaction_info,
-      BaseTransaction* trans) = 0;
+      BaseTransaction* trans,
+      std::vector<int64> *entry_changed) = 0;

[Nicolas Zea, 2012/11/02 21:02:25]

nit: fix * to be before space (here and below)

[haitaol1, 2012/11/02 22:58:18]

Done. Haven't completely got off the style in my old team.

+  // Returns the handles of changed entries in |entry_changed|.
   virtual void HandleCalculateChangesChangeEventFromSyncer(
       const ImmutableWriteTransactionInfo& write_transaction_info,
-      BaseTransaction* trans) = 0;
+      BaseTransaction* trans,
+      std::vector<int64> *entry_changed) = 0;
   // Must return the set of all ModelTypes that were modified in the
   // transaction.
   virtual ModelTypeSet HandleTransactionEndingChangeEvent(