sync: Inject sync/'s dependency on invalidations

sync/engine/sync_scheduler_impl.cc

Index: sync/engine/sync_scheduler_impl.cc
diff --git a/sync/engine/sync_scheduler_impl.cc b/sync/engine/sync_scheduler_impl.cc
index 01a054ac2fb7e7f16098fc78ffec1620d93d2c55..c5629ba59376ccc83ef2eeb6d11fb0dc3f415d0b 100644
--- a/sync/engine/sync_scheduler_impl.cc
+++ b/sync/engine/sync_scheduler_impl.cc
@@ -387,16 +387,15 @@ void SyncSchedulerImpl::ScheduleLocalRefreshRequest(
 
 void SyncSchedulerImpl::ScheduleInvalidationNudge(
     const TimeDelta& desired_delay,
-    const ObjectIdInvalidationMap& invalidation_map,
+    syncer::ModelType model_type,
+    scoped_ptr<InvalidationInterface> invalidation,
     const tracked_objects::Location& nudge_location) {
   DCHECK(CalledOnValidThread());
-  DCHECK(!invalidation_map.Empty());
 
   SDVLOG_LOC(nudge_location, 2)
       << "Scheduling sync because we received invalidation for "
-      << ModelTypeSetToString(
-          ObjectIdSetToModelTypeSet(invalidation_map.GetObjectIds()));
-  nudge_tracker_.RecordRemoteInvalidation(invalidation_map);
+      << ModelTypeToString(model_type);
+  nudge_tracker_.RecordRemoteInvalidation(model_type, invalidation.Pass());
   ScheduleNudgeImpl(desired_delay, nudge_location);
 }