[DO NOT MERGE] Launch virtual display activity in fullscreen. am: 56f3f73f85 am: 9657f680c9 am: da0b254bda

Original change: https://android-review.googlesource.com/c/platform/cts/+/2513462

Change-Id: I3239cecdcd8342d255678672b98f7c42cc5149bd
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>