score:4
If outdoors smoking is only allowed in a dedicated area,
It is rather in a dedicated area the outdoor smoking is banned, not that the outdoor smoking is only allowed in a dedicated area.
The restricted outdoor areas include nurseries, school, stadiums, public transportation places many people gather (bus stop, metro platform, etc...), art venues, etc, according to this page on Baidu baike (close to a Wikipedia clone in China).
When I was in Shanghai this June and July, it is still common to see many smokers on the street, even smoking while walking. So your friend can smoke outside, with the exceptions on the few restricted areas.