Allow country-specific languages in UI list at OOBE.
This CL allows displaying to user and selection of country-specific language
codes for which we do not have actual translation. A base language locale
will be used instead.
BUG=357481
TEST=browsertest
To test manually:
1) Set VPD value of initial_locale to country-specific language codes, for which only the translation to base language exist. For example:
"fr-CH,it-CH,de-CH"
2) Start OOBE and check they are displayed and selectable like any other languages.
Review URL: https://codereview.chromium.org/
224093013
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@262808 0039d316-1c4b-4281-b951-d872f2087c98