[automerger skipped] [DO NOT MERGE] Update window with FLAG_SECURE when bouncer is showing am: bc2146966b am: dc0ba857f2 -s ours

am skip reason: subject contains skip directive

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19952038

Change-Id: I0bf9393b97cabfc6bed5dd3eb6c5e1cdfd7dcf49
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>