[Sync] Cleanup all tab sync enabling logic now that its on by default.

BUG=none
TEST=


Review URL: https://chromiumcodereview.appspot.com/10443046

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@139462 0039d316-1c4b-4281-b951-d872f2087c98
bool InitialSyncEndedForTypes(syncable::ModelTypeSet types,
                              sync_api::UserShare* share) {
  for (syncable::ModelTypeSet::Iterator i = types.First();
       i.Good(); i.Inc()) {
    if (!share->directory->initial_sync_ended_for_type(i.Get()))
      return false;
  }
  return true;
}

bool InitialSyncEndedForTypes(syncable::ModelTypeSet types,
                              sync_api::UserShare* share) {
  for (syncable::ModelTypeSet::Iterator i = types.First();
       i.Good(); i.Inc()) {
    if (!share->directory->initial_sync_ended_for_type(i.Get()))
      return false;
  }
  return true;
}
