Merge changes from topic "danielnorman-a11y-owners" am: de7d3fb6 am: 41b4e4d9 am: 9d01b9f2

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2237693



Change-Id: Ief342756fde5cda25904f2ae62e24c75bdc13381
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>