[Sync] Enable adding notifier observers from ProfileSyncService

sync/notifier/object_id_payload_map.h

Index: sync/notifier/object_id_payload_map.h
diff --git a/sync/notifier/object_id_payload_map.h b/sync/notifier/object_id_payload_map.h
index 9205326dbb19d8d17e42e322c75ba9a9967c1d81..91a1f156cefa48cd5704185aeb4d8398438dfddc 100644
--- a/sync/notifier/object_id_payload_map.h
+++ b/sync/notifier/object_id_payload_map.h
@@ -18,6 +18,11 @@ typedef std::map<invalidation::ObjectId,
                  std::string,
                  ObjectIdLessThan> ObjectIdPayloadMap;
 
+// Converts between ObjectIdPayloadMaps and ObjectIdSets.
+ObjectIdSet ObjectIdPayloadMapToSet(const ObjectIdPayloadMap& id_payloads);
+ObjectIdPayloadMap ObjectIdSetToPayloadMap(
+    ObjectIdSet ids, const std::string& payload);

[msw, 2012/08/03 05:14:21]

One param per line.

+
 // Converts between ObjectIdPayloadMaps and ModelTypePayloadMaps.
 ModelTypePayloadMap ObjectIdPayloadMapToModelTypePayloadMap(
     const ObjectIdPayloadMap& id_payloads);