Emilio Cobos Álvarez c52a218234 Bug 1504078 - Use references in the shapes code. r=bradwerth,TYLin
It doesn't make much sense to return const UniquePtr<Foo>& for something that
can't be null, it's just confusing.

Also make more stuff actually const.

Differential Revision: https://phabricator.services.mozilla.com/D10647

--HG--
extra : moz-landing-system : lando
2018-11-02 18:19:06 +00:00
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