DO NOT MERGE - Add test for BAL with VirtualDisplay

Verifies that a virtualdisplay with a presentation doesn't let the app
bypass BAL

Bug: 205130886
Test: atest CtsActivityManagerBackgroundActivityTestCases
Change-Id: I3c66ef758fef067b73278ee5d2c6a81ab0c139b7
Merged-In: I3c66ef758fef067b73278ee5d2c6a81ab0c139b7
(cherry picked from commit 15358ddab1234f17f1ef92a7826bd702c7bfe6c9)
4 files changed