Bug 42562: Pass the list of supported languages to GeckoView.

Merge Info

Related Issues

• tor-browser#42562 (closed)
• tor-browser-build#xxxxx

Backporting

Same as tor-browser!1017 (merged).

Review

Request Reviewer

• Request review from an applications developer depending on modified system:
  • android : @clairehurst, @dan, the same who reviews the other one 🙂.

Change Description

This commit passes the information about the languages we enabled at build time to GeckoView.

I think we can keep it on a commit on its own and then squash it to the commit in tor-browser.git after the repository migration.

How Tested

Testbuild: https://tb-build-03.torproject.org/~pierov/torbrowser/nightly/tbb-nightly.2024.05.08/.

When developing I added logs here and there.