Merge "Send user activity when dream quits unexpectedly" into udc-dev am: 2c7b3864

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24133208



Change-Id: I9d6b2461e312b2dc614c5bb64e262d327c4cadae
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>