They're supported by Google Translate and their names need to be shown
in the Translate UI.

Hmong (hmn)
Javanese (jv)
Luxembourgish (lb)
Samoan (sm)

The size impact for desktop Chrome is about 3kB.
( 10,175,056 => 10,178,576)

BUG=733398
TEST=See the bug
TBR=yyushkina@chromium.org

Change-Id: I9ca232343847a9a95c1dabacb6336bd43ba39849
Reviewed-on: https://chromium-review.googlesource.com/574771


Reviewed-by: Jungshik Shin <jshin@chromium.org>