Merge changes from topic "Backport: tag availability checking mechanism" into sc-v2-dev am: 0412d794 am: 8699887e am: 577dcdbb

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17046201

Change-Id: Ie6c4202b69cc5fa98fd671bc302602037ffac394