Review Mozilla 1928454: Digital Turbine Search Codes

Bugzilla: https://bugzilla.mozilla.org/show_bug.cgi?id=1928454

I feel like this probably doesn't effect us because we override search engines. But I'm more confused about what is actually going on. As far as I can tell the patch just adds another google search engine with a different client id for a dt-001 distribution. I guess dt stands for Digital Turbine which seems to be some kind of advertising company.

@dan do you know what this is or why this exists?