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

sync/internal_api/read_transaction.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "sync/internal_api/public/read_transaction.h"
 
-#include "sync/syncable/directory.h"
 #include "sync/syncable/read_transaction.h"
 
 namespace syncer {
 
 //////////////////////////////////////////////////////////////////////////
 // ReadTransaction member definitions
 ReadTransaction::ReadTransaction(const tracked_objects::Location& from_here,
                                  UserShare* share)
     : BaseTransaction(share),
       transaction_(NULL),
@@ skipping 11 matching lines @@
 ReadTransaction::~ReadTransaction() {
   if (close_transaction_) {
     delete transaction_;
   }
 }
 
 syncable::BaseTransaction* ReadTransaction::GetWrappedTrans() const {
   return transaction_;
 }
 
-int64 ReadTransaction::GetModelVersion(ModelType type) {
-  return transaction_->directory()->GetTransactionVersion(type);
-}
-
 }  // namespace syncer