He could be a Shih Tsu, the colour's unusual, but it can happen, however a common colour in a Lhasa Apso... Could be a mix between the 2 breeds... or could be someone who thinks all little squashed-faced (brachycephalic) dogs with long soft hair are Shih Tsu's

Hard to tell from that photo anyway... Could be a Brussles Griffon x for all I can tell from that photo.