[automerger skipped] Merge "Don't attach private Notification to A11yEvent...

[automerger skipped] Merge "Don't attach private Notification to A11yEvent when user locked" into rvc-dev am: abd2fc4b am: 31860c24 -s ours am: ddccf343 -s ours am: fdad843f -s ours am: b6431034 -s ours

am skip reason: Merged-In Ib44f1d3695d2b31bee4f8ccae3f948c83f3b40b6 with SHA-1 40574b32 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15081021

Change-Id: I91588a23dffe754e4085125095abb4cf233f9c09