| Index: sync/notifier/ack_tracker.cc
|
| diff --git a/sync/notifier/ack_tracker.cc b/sync/notifier/ack_tracker.cc
|
| index 4014672b434631ee5159febc8e838823c4cdb267..3e4767de174b4ac4d0cab8a081c15eb7603349f7 100644
|
| --- a/sync/notifier/ack_tracker.cc
|
| +++ b/sync/notifier/ack_tracker.cc
|
| @@ -95,6 +95,7 @@ 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));
|
|
|