[automerger skipped] [DO NOT MERGE] Update window with FLAG_SECURE when bouncer is showing am: bcebd3e9 -s ours

am skip reason: subject contains skip directive

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19953604



Change-Id: If542700439e8755cc6db2f41690426bbc08ac81c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>