Suppress transient bars over dreams. am: 982ecde2

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22101926



Change-Id: I26c327d011a83a1375a36dddd1e0191d20a93367
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>