Merge "Merge "Don't attach private Notification to A11yEvent when user locked"...

Merge "Merge "Don't attach private Notification to A11yEvent when user locked" into sc-dev am: 1b1df331 am: e03cc1b4" into sc-v2-dev-plus-aosp am: f3a06ffb

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15067464

Change-Id: I51fe72a1dc20537f261fa8196a2affc63a1a821b