| Index: sync/notifier/ack_tracker.cc
|
| diff --git a/sync/notifier/ack_tracker.cc b/sync/notifier/ack_tracker.cc
|
| index 759b8699508d35d9b0fa1e5ac1c831f02f1e0fda..6461571749c2b57cf307e1e428dfdf2aebc4349e 100644
|
| --- a/sync/notifier/ack_tracker.cc
|
| +++ b/sync/notifier/ack_tracker.cc
|
| @@ -97,6 +97,7 @@ void AckTracker::Clear() {
|
|
|
| void AckTracker::Track(const ObjectIdSet& ids) {
|
| DCHECK(thread_checker_.CalledOnValidThread());
|
| + DCHECK(!ids.empty());
|
|
|
| scoped_ptr<Entry> entry(new Entry(
|
| create_backoff_entry_callback_.Run(&kDefaultBackoffPolicy), ids));
|
|
|