EDIT: Apparently the "upstream" collection does not refer to the third capture method in question, which exploited the fact that Google did not (at the time) encrypt its internal communications.
http://en.wikipedia.org/wiki/Upstream_collection vs http://en.wikipedia.org/wiki/MUSCULAR
> After the hearing, De said that the same knowledge, and associated legal processes, also apply when the NSA harvests communications data not from companies directly but in transit across the internet, under Section 702 authority.
doesn't imply that Facebook is informed when an "upstream collection" request is made to a telco in relation to a Facebook user, but rather that the telco is. It's pretty unclear though.
PRISM and UPSTREAM featured in the same slide which would explain them being discussed together, but UPSTREAM isn't subject to tech firms' whims so the discussion might have been concerning telecom firms as well.
The reporting isn't clear, best read the transcript when available.