Delete unintended occurrence of zh_hant_hk in the login language menu
Delete unintended occurrence of zh_hant_hk in the login language menu

BUG=chromium-os:13117
TEST=at login screen show the language list and check that
     Chinese(Traditional Han, Hong Kong) is not displayed.

In the current version of third_party/icu/source/data/locale/zh*,
zh_hant_hk, zh_hant_mo, and zh_hans_sg is aliased in addtion to
zh_hans_cn and zh_hant_tw. So this patch adds checks for them
in IsDuplicateName.

The patch fixes another tiny problem related to locale names;
in CheckAndResolveLocale, zh-mk should be zh-mo.

Review URL: http://codereview.chromium.org/6835017
Patch from Kazuhiro Inaba <kinaba@chromium.org>.

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@81526 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser