factory_SelectKeyboard: allow overriding list from test_list

Each partner may have their own perference for keyboard layout / locale (even
timezone) selection. We should allow setting supported combination from some
where they can edit (i.e., the test list).

The default list is reduced to contain only 4 layouts.

BUG=chromium-os:15190
TEST=run factory_SelectKeyboard; # seeing default keyboard layout list
     edit test_list to assigng kb_map; # seeing modified keyboard layout list

Change-Id: Id416254f67702bbe25e0242380006f7affad96cb
Reviewed-on: http://gerrit.chromium.org/gerrit/667
Reviewed-by: Yusuke Sato <yusukes@chromium.org>
Reviewed-by: Nikita Kostylev <nkostylev@chromium.org>
Reviewed-by: Nick Sanders <nsanders@chromium.org>
Tested-by: Hung-Te Lin <hungte@chromium.org>
1 file changed