Merge "[Partial Screenshare][a11y] change recording dialog announcement" into udc-qpr-dev am: c151f91e89 am: 40684a2952

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24464969

Change-Id: I77dc15f4aac26cf8b651eb276d8119c320598ff6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>