Unfortunately, this needed some additional trickery in order to keep its
constructor "private". I stole this trick from [1]. With this patch, we tear
down the statistics object during XPCOM shutdown intead of after it. I don't
believe that we need the object to live past the ClearOnShutdown destructors.
[1] http://rienajouter.blogspot.com/2014/10/makeshared-and-makeunique-for-classes.html
MozReview-Commit-ID: JsiN6Bq9Yp4
--HG--
extra : rebase_source : dd26c8e6906a6c9fd500c28379f8c63fd7c3ad6a
Blake Kaplan
Stone Shih
Carsten "Tomcat" Book