[automerge] Allowing launch cookies to be passed via pending activity starts 2p: 30362a07af

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/16968731


Change-Id: I68cd8b86e54bd5e3521724fdd5f21db28da38c3d
Merged-In: I339ea827836fa53ab5bb1617a72f9e0e5ae0f5ec