Added Fullscreen Shell protocol configs to BUILD file

Modified third_party build file to include Fullscreen Shell protocol,
allowing use of the protocol for EXO eventually.

Bug: b/74068068
Test: Compiled ChromeOS and verified it builds.
Change-Id: If785b9736679be2e18be5521e173888ab6ea6a6f
Reviewed-on: https://chromium-review.googlesource.com/c/1281175
Reviewed-by: Daniel Nicoara <dnicoara@chromium.org>
Reviewed-by: Antoine Labour <piman@chromium.org>
Commit-Queue: Shawn Gallea <sagallea@google.com>
Cr-Commit-Position: refs/heads/master@{#600447}
1 file changed