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We should now have translations for these two languages. The pak files
were already being built and shipped with Chrome OS, but couldn't be
used as they were explicitly disabled.

Test: CL author switched device language and saw translated strings
Bug: 1093583
Change-Id: I401baabe4af8f04d9918332a7f26badf720038ba
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2459135Reviewed-by: Nico Weber <thakis@chromium.org>
Commit-Queue: Michael Cui <mlcui@google.com>
Cr-Commit-Position: refs/heads/master@{#818671}