[MERGE][bug #300177] Pass compression_parent as part of 'get_record_stream'

[Jelmer Vernooij]

Jelmer Vernooij has voted comment.
Status is now: Semi-approved
Comment:
It would indeed be nice if this could be specific to KnitContentFactory 
rather than for all ContentFactory's, since that means no API changes 
for foreign implementations.

For details, see: 
http://bundlebuggy.aaronbentley.com/project/bzr/request/%3C498CB306.30201%40arbash-meinel.com%3E
Project: Bazaar