[automerger skipped] Keyguard: use transition state for syncing occlude [RESTRICT AUTOMERGE] am: 831787c50d -s ours

am skip reason: subject contains skip directive

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23661867

Change-Id: I81af51f03a0e5defc9abaa95f35d36f2d8fa2c26
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>