Fix bug in screen capture and lock task migrations am: 9d809f92

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/25839619



Change-Id: I789263b0966e7bd47a36c9f9dffd9696b87ba098
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>