Merge "Reland "Distinguish warm/hot launch by whether the activity has attached process"" into rvc-qpr-dev am: 06c050caf2

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/12922397

Change-Id: I5d15037a5d2712f03db642e1acf58d9cc1257fc8