Initialize variable and pass through count
Initialize variable and pass through count

Implement a "count" that's equal to the delegate stream's count. It's
inaccurate but a lot cheaper than measuring the whole stream.

Also, ids variable wasn't initialized.

grdryn/pump.io,pump-io/pump.io,strugee/pump.io,e14n/pump.io,pump-io/pump.io,gabrielsr/pump.io,detrout/pump.io,pump-io/pump.io,landsurveyorsunited/pump.io,Acidburn0zzz/pump.io,e14n/pump.io,OpenSocial/pump.io,gabrielsr/pump.io,e14n/pump.io,Acidburn0zzz/pump.io,landsurveyorsunited/pump.io,detrout/pump.io,stephensekula/pump.io,profOnno/pump.io,profOnno/pump.io,stephensekula/pump.io,grdryn/pump.io,OpenSocial/pump.io,strugee/pump.io,stephensekula/pump.io