Boris Zbarsky (reviews very slow until spring) <firstname.lastname@example.org> has granted
Johnny Stenback (:jst) <email@example.com>'s request for superreview:
Bug 408792: Eliminate more QI's from performance hotspots.
Attachment 293639: Eliminate QI's that aren't needed.
------- Additional Comments from Boris Zbarsky (reviews very slow until spring)
sr=bzbarsky, with the comments expanded out.
And please file a followup for the mParentDocument change? I think we'd like
that for 1.9.