Andrew McCreight 4d6f3c65a3 Bug 1409115 - Fix leaks by adding promise window proxy. r=bkelly ...

The service worker job queue can get stuck sometimes, so we don't want
the per-process service worker data structure to hold strong
references to content. Instead, I add a proxy that is only a weak
reference. The wrinkle is that we need to keep the promise alive as
long as the job and the window are otherwise alive. I solve this by
putting a cycle collected reference to the promise on the window
itself.

MozReview-Commit-ID: GbmCY4ZIQWk

2017-12-06 16:48:18 -08:00

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