Bug 1601376 - removed try and mem::uninitialized uses in egl.rs. r=jrmuizel
Bug 1601376 - removed try and mem::uninitialized uses in egl.rs. r=jrmuizel

Differential Revision: https://phabricator.services.mozilla.com/D55863

[wrupdater] From https://hg.mozilla.org/mozilla-central/rev/c61d0841ac3f9d70a7a85de05eca441475a36f76

servo/webrender,servo/webrender,servo/webrender,servo/webrender,servo/webrender,servo/webrender