Merge "Revert "Suppress app transition while recents is running"" into tm-dev...

Merge "Revert "Suppress app transition while recents is running"" into tm-dev am: d2303d97 am: 005860c1 am: b509a81e am: b57558c4

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18204686



Change-Id: I8aea0107e653cea213029e1123a5197a7dfab1b9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>