Use delete journal to remove bookmarks that are already deleted in sync model

chrome/browser/sync/glue/bookmark_model_associator.h

Index: chrome/browser/sync/glue/bookmark_model_associator.h
diff --git a/chrome/browser/sync/glue/bookmark_model_associator.h b/chrome/browser/sync/glue/bookmark_model_associator.h
index 541a54a3b72c8a41961d1f2ca7e703a11f0d5af7..1416a2cff18eeaa42a99a30e00467de739b6850e 100644
--- a/chrome/browser/sync/glue/bookmark_model_associator.h
+++ b/chrome/browser/sync/glue/bookmark_model_associator.h
@@ -22,6 +22,7 @@ class BookmarkNode;
 
 namespace syncer {
 class BaseNode;
+class BaseTransaction;
 struct UserShare;
 }
 
@@ -118,6 +119,11 @@ class BookmarkModelAssociator
       syncer::SyncMergeResult* local_merge_result,
       syncer::SyncMergeResult* syncer_merge_result);
 
+  // Removes bookmark nodes whose corresponding sync nodes have been deleted
+  // according to sync delete journals. Return number of such bookmarks nodes
+  // found.
+  int64 ApplyDeletesFromSyncJournal(syncer::BaseTransaction* trans);
+
   // Associate a top-level node of the bookmark model with a permanent node in
   // the sync domain.  Such permanent nodes are identified by a tag that is
   // well known to the server and the client, and is unique within a particular