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

chrome/browser/sync/glue/bookmark_change_processor.h

 // 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.
 
 #ifndef CHROME_BROWSER_SYNC_GLUE_BOOKMARK_CHANGE_PROCESSOR_H_
 #define CHROME_BROWSER_SYNC_GLUE_BOOKMARK_CHANGE_PROCESSOR_H_
 
 #include <vector>
 
 #include "base/compiler_specific.h"
@@ skipping 146 matching lines @@
                             std::vector<unsigned char>* dst);
 
   // Remove the sync node corresponding to |node|.  It shouldn't have
   // any children.
   void RemoveOneSyncNode(syncer::WriteTransaction* trans,
                          const BookmarkNode* node);
 
   // Remove all the sync nodes associated with |node| and its children.
   void RemoveSyncNodeHierarchy(const BookmarkNode* node);
 
+  // Update transaction version of |model| and |node| to if sync model gets a
+  // new version.
+  void UpdateVersion(int64 old_version,

[tim (not reviewing), 2012/11/01 18:31:36]

nit - UpdateTransactionVersion to keep the naming consistent / unambiguous. 

[haitaol1, 2012/11/02 17:57:11]

Done.

+                     BookmarkModel* model,
+                     const std::vector<const BookmarkNode*>& nodes);
+
   // The bookmark model we are processing changes from.  Non-NULL when
   // |running_| is true.
   BookmarkModel* bookmark_model_;
 
   // The two models should be associated according to this ModelAssociator.
   BookmarkModelAssociator* model_associator_;
 
   DISALLOW_COPY_AND_ASSIGN(BookmarkChangeProcessor);
 };
 
 }  // namespace browser_sync
 
 #endif  // CHROME_BROWSER_SYNC_GLUE_BOOKMARK_CHANGE_PROCESSOR_H_