Merge "Pause transient hide activities before resuming next" into udc-qpr-dev...

Merge "Pause transient hide activities before resuming next" into udc-qpr-dev am: b73baea1 am: c1630144

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24076211



Change-Id: Ib178a8d3c3c0aeff79bc8da362c6fe1cfbb43d93
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>