Merge "scroll capture: Recover gracefully when anchor view is lost" into udc-dev am: 4d859e7b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23058626



Change-Id: I47c7db936ef67d549c6adcd62946821fa83f166b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>