user_prefs::PrefRegistrySyncable* registry) {
registry->RegisterBooleanPref(
prefs::kInvalidationServiceUseGCMChannel,
- false,
+ true, // if no value in prefs, use GCM channel.
user_prefs::PrefRegistrySyncable::UNSYNCABLE_PREF);
InvalidatorStorage::RegisterProfilePrefs(registry);
}