XKB keyboard layouts for Chrome OS

500+ keyboard layouts for Chrome OS. Chrome OS uses keyboard layouts based on Linux's XKB. XKB defines over 500 layouts but Chrome OS only exposes a subset of around 150. This extension makes all XKB layouts visible in Chrome OS. af, af(fa-olpc), af(olpc-ps), af(ps), af(uz-olpc), af(uz), al, al(plisi), am, am(eastern-alt), am(eastern), am(phonetic-alt), am(phonetic), am(western), ara, ara(azerty_digits), ara(azerty), ara(buckwalter), ara(digits), ara(mac), ara(olpc), ara(qwerty_digits), ara(qwerty), at, at(mac), at(nodeadkeys), at(sundeadkeys), au, az, az(cyrillic), ba, ba(alternatequotes), ba(unicode), ba(unicodeus), ba(us), bd, bd(probhat), be, be(iso-alternate), be(nodeadkeys), be(oss_latin9), be(oss_sundeadkeys), be(oss), be(sundeadkeys), be(wang), bg, bg(bas_phonetic), bg(phonetic), br, br(dvorak), br(nativo-epo), br(nativo-us), br(nativo), br(nodeadkeys), br(thinkpad), brai, brai(left_hand_invert), brai(left_hand), brai(right_hand_invert), brai(right_hand), bt, bw, by, by(latin), by(legacy), ca, ca(eng), ca(fr-dvorak), ca(fr-legacy), ca(ike), ca(multi-2gr), ca(multi), ca(multix), cd, ch, ch(de_mac), ch(de_nodeadkeys), ch(de_sundeadkeys), ch(fr_mac), ch(fr_nodeadkeys), ch(fr_sundeadkeys), ch(fr), ch(legacy), cm, cm(azerty), cm(dvorak), cm(french), cm(mmuock), cm(qwerty), cn, cn(altgr-pinyin), cn(tib_asciinum), cn(tib), cn(ug), cz, cz(bksl), cz(dvorak-ucw), cz(qwerty_bksl), cz(qwerty), cz(rus), cz(ucw), de, de(deadacute), de(deadgraveacute), de(deadtilde), de(dsb_qwertz), de(dsb), de(dvorak), de(mac_nodeadkeys), de(mac), de(neo), de(nodeadkeys), de(qwerty), de(ro_nodeadkeys), de(ro), de(ru), de(sundeadkeys), de(T3), de(tr), dk, dk(dvorak), dk(mac_nodeadkeys), dk(mac), dk(nodeadkeys), dk(winkeys), dz, dz(ar), dz(ber), ee, ee(dvorak), ee(nodeadkeys), ee(us), epo, epo(legacy), es, es(ast), es(cat), es(deadtilde), es(dvorak), es(mac), es(nodeadkeys), es(sundeadkeys), es(winkeys), et, fi, fi(classic), fi(mac), fi(nodeadkeys), fi(smi), fi(winkeys), fo, fo(nodeadkeys), fr, fr(azerty), fr(bepo_latin9), fr(bepo), fr(bre), fr(dvorak), fr(geo), fr(latin9_nodeadkeys), fr(latin9_sundeadkeys), fr(latin9), fr(mac), fr(nodeadkeys), fr(oci), fr(oss_latin9), fr(oss_nodeadkeys), fr(oss_sundeadkeys), fr(oss), fr(sundeadkeys), fr(us), gb, gb(colemak), gb(dvorak), gb(dvorakukp), gb(extd), gb(intl), gb(mac_intl), gb(mac), gb(pl), ge, ge(ergonomic), ge(mess), ge(os), ge(ru), gh, gh(akan), gh(avn), gh(ewe), gh(fula), gh(ga), gh(generic), gh(gillbt), gh(hausa), gn, gr, gr(extended), gr(nodeadkeys), gr(polytonic), gr(simple), hr, hr(alternatequotes), hr(unicode), hr(unicodeus), hr(us), hu, hu(101_qwerty_comma_dead), hu(101_qwerty_comma_nodead), hu(101_qwerty_dot_dead), hu(101_qwerty_dot_nodead), hu(101_qwertz_comma_dead), hu(101_qwertz_comma_nodead), hu(101_qwertz_dot_dead), hu(101_qwertz_dot_nodead), hu(102_qwerty_comma_dead), hu(102_qwerty_comma_nodead), hu(102_qwerty_dot_dead), hu(102_qwerty_dot_nodead), hu(102_qwertz_comma_dead), hu(102_qwertz_comma_nodead), hu(102_qwertz_dot_dead), hu(102_qwertz_dot_nodead), hu(nodeadkeys), hu(qwerty), hu(standard), id, ie, ie(CloGaelach), ie(ogam_is434), ie(ogam), ie(UnicodeExpert), il, il(biblical), il(lyx), il(phonetic), in, in(ben_baishakhi), in(ben_bornona), in(ben_gitanjali), in(ben_inscript), in(ben_probhat), in(ben), in(bolnagri), in(eeyek), in(eng), in(guj), in(guru), in(hin-kagapa), in(hin-wx), in(jhelum), in(kan-kagapa), in(kan-kagapa), in(kan), in(mal_enhanced), in(mal_lalitha), in(mal), in(mar-kagapa), in(olck), in(ori), in(san-kagapa), in(tam_tamilnet_TAB), in(tam_tamilnet_TSCII), in(tam_tamilnet_with_tam_nums), in(tam_tamilnet), in(tam), in(tel-kagapa), in(tel-kagapa), in(tel-sarala), in(tel), in(urd-phonetic), in(urd-phonetic3), in(urd-winkeys), iq, iq(ku_alt), iq(ku_ara), iq(ku_f), iq(ku), ir, ir(ku_alt), ir(ku_ara), ir(ku_f), ir(ku), ir(pes_keypad), is, is(dvorak), is(mac_legacy), is(mac), is(nodeadkeys), is(Sundeadkeys), it, it(fur), it(geo), it(ibm), it(intl), it(mac), it(nodeadkeys), it(scn), it(us), it(winkeys), jp, jp(dvorak), jp(kana), jp(kana86), jp(mac), jp(OADG109A), ke, ke(kik), kg, kg(phonetic), kh, kr, kr(kr104), kz, kz(ext), kz(kazrus), kz(latin), kz(ruskaz), la, la(stea), latam, latam(colemak-gaming), latam(colemak), latam(deadtilde), latam(dvorak), latam(nodeadkeys), latam(sundeadkeys), lk, lk(tam_TAB), lk(tam_unicode), lk(us), lt, lt(ibm), lt(lekp), lt(lekpa), lt(std), lt(us), lv, lv(adapted), lv(apostrophe), lv(ergonomic), lv(fkey), lv(modern), lv(tilde), ma, ma(french), ma(tifinagh-alt-phonetic), ma(tifinagh-alt), ma(tifinagh-extended-phonetic), ma(tifinagh-extended), ma(tifinagh-phonetic), ma(tifinagh), mao, md, md(gag), me, me(cyrillic), me(cyrillicalternatequotes), me(cyrillicyz), me(latinalternatequotes), me(latinunicode), me(latinunicodeyz), me(latinyz), mk, mk(nodeadkeys), ml, ml(fr-oss), ml(us-intl), ml(us-mac), mm, mm(zawgyi), mn, mt, mt(alt-gb), mt(alt-us), mt(us), mv, my, my(phonetic), nec_vndr/jp, ng, ng(hausa), ng(igbo), ng(yoruba), nl, nl(mac), nl(std), nl(sundeadkeys), no, no(colemak), no(dvorak), no(mac_nodeadkeys), no(mac), no(nodeadkeys), no(smi_nodeadkeys), no(smi), no(winkeys), np, ph, ph(capewell-dvorak-bay), ph(capewell-dvorak), ph(capewell-qwerf2k6-bay), ph(capewell-qwerf2k6), ph(colemak-bay), ph(colemak), ph(dvorak-bay), ph(dvorak), ph(qwerty-bay), pk, pk(ara), pk(snd), pk(urd-crulp), pk(urd-nla), pl, pl(csb), pl(dvorak_altquotes), pl(dvorak_quotes), pl(dvorak), pl(dvp), pl(legacy), pl(qwertz), pl(ru_phonetic_dvorak), pl(szl), pt, pt(mac_nodeadkeys), pt(mac_sundeadkeys), pt(mac), pt(nativo-epo), pt(nativo-us), pt(nativo), pt(nodeadkeys), pt(sundeadkeys), ro, ro(cedilla), ro(std_cedilla), ro(std), ro(winkeys), rs, rs(alternatequotes), rs(latin), rs(latinalternatequotes), rs(latinunicode), rs(latinunicodeyz), rs(latinyz), rs(rue), rs(yz), ru, ru(bak), ru(chm), ru(cv_latin), ru(cv), ru(dos), ru(kom), ru(legacy), ru(mac), ru(os_legacy), ru(os_winkeys), ru(phonetic_azerty), ru(phonetic_dvorak), ru(phonetic_fr), ru(phonetic_winkeys), ru(phonetic_yazherty), ru(phonetic), ru(sah), ru(srp), ru(tt), ru(typewriter-legacy), ru(typewriter), ru(udm), ru(xal), se, se(dvorak), se(mac), se(nodeadkeys), se(rus_nodeadkeys), se(rus), se(smi), se(svdvorak), se(swl), se(us_dvorak), se(us), si, si(alternatequotes), si(us), sk, sk(bksl), sk(qwerty_bksl), sk(qwerty), sn, sy, sy(ku_alt), sy(ku_f), sy(ku), sy(syc_phonetic), sy(syc), tg, th, th(pat), th(tis), tj, tj(legacy), tm, tm(alt), tr, tr(alt), tr(crh_alt), tr(crh_f), tr(crh), tr(f), tr(intl), tr(ku_alt), tr(ku_f), tr(ku), tr(sundeadkeys), tw, tw(indigenous), tw(saisiyat), tz, ua, ua(homophonic), ua(legacy), ua(phonetic), ua(rstu_ru), ua(rstu), ua(typewriter), ua(winkeys), us, us(alt-intl), us(altgr-intl), us(chr), us(colemak), us(dvorak-alt-intl), us(dvorak-classic), us(dvorak-intl), us(dvorak-l), us(dvorak-r), us(dvorak), us(dvp), us(euro), us(hbs), us(intl), us(mac), us(olpc2), us(rus), us(workman-intl), us(workman), uz, uz(latin), vn, vn(fr), vn(us), za