Merge "Hook up shell-transitions screenshotting for recents" into tm-dev am: b4749cce

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17360003



Change-Id: Idaf5c21e14b77f43966c79e89817ade70e555080
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>