Use SafeRunner in LanguageSettingsProviderTab

If an option page contributed by an extension throws an exception,
then none of the other pages get created. It is better to use a
SafeRunner when in such case where plugins could break other things
than its own functionality.

Change-Id: I531c966be8ef6460a838b3d10bc61dcbdbe627b0
Signed-off-by: Marc-Andre Laperle <malaperle@gmail.com>
1 file changed