First-time sync: asymptotic running time improvement

chrome/browser/sync/engine/syncer_util.h

Index: chrome/browser/sync/engine/syncer_util.h
diff --git a/chrome/browser/sync/engine/syncer_util.h b/chrome/browser/sync/engine/syncer_util.h
index d840cec2ec49cf3d7d33d12a601b81650baf3b20..b1d5e50b97cb07fbcde312f6d05c5510b10f3f87 100644
--- a/chrome/browser/sync/engine/syncer_util.h
+++ b/chrome/browser/sync/engine/syncer_util.h
@@ -101,15 +101,6 @@ class SyncerUtil {
                                      const SyncEntity& update,
                                      syncable::MutableEntry* target);
 
-  // Compute a local predecessor position for |update_item|.  The position
-  // is determined by the SERVER_POSITION_IN_PARENT value of |update_item|,
-  // as well as the SERVER_POSITION_IN_PARENT values of any up-to-date
-  // children of |parent_id|.
-  static syncable::Id ComputePrevIdFromServerPosition(
-      syncable::BaseTransaction* trans,
-      syncable::Entry* update_item,
-      const syncable::Id& parent_id);
-
   // Append |item|, followed by a chain of its predecessors selected by
   // |inclusion_filter|, to the |commit_ids| vector and tag them as included by
   // storing in the set |inserted_items|.  |inclusion_filter| (typically one of