l10n: Fix Region representation.

Some fields in Region are lists (for example, keyboards) so we do need a
better way to provide its representation string.

BUG=none
TEST=make test

Change-Id: Ia4afd28b6103f4eec2777b1f44513961177d3d79
Reviewed-on: https://chromium-review.googlesource.com/356940
Commit-Ready: Hung-Te Lin <hungte@chromium.org>
Tested-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-by: Ricky Liang <jcliang@chromium.org>
1 file changed