Merge "Update ActivityStarter to dismiss dreams when starting activities."...

Merge "Update ActivityStarter to dismiss dreams  when starting activities." into tm-dev am: cd2cf901 am: b91941ea am: 3fa7dbba

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18602463



Change-Id: I1abe264428e585891f7b07e84b5812709131bb06
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>