Bug 989304 - Add es-AR and lv to mobile/android/locales/maemo-locales. r=Pike, a=lsblakk
Bug 988370 - Don't use progressive/low precision rendering on fixed layers. r=mattwoodrow, a=lsblakk

Fixed layers don't async scroll, so it doesn't make sense for them to have
a low precision region or for them to be rendered progressively.