Upstream pending patches:

patch-servo_components_style_build__gecko.rs:
	https://bugzilla.mozilla.org/show_bug.cgi?id=1453304
	https://github.com/servo/servo/pull/20622

patch-modules_pdfium_update.sh:
	https://bugzilla.mozilla.org/show_bug.cgi?id=1453285

OSS audio support:
	https://github.com/kinetiknz/cubeb/pull/440
	old: https://bugzilla.mozilla.org/show_bug.cgi?id=1021761