Merge "Send user activity when dream quits unexpectedly" into udc-dev am: 2c7b3864 am: e31a3b87

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



Change-Id: If54edb0e1a042c01932be0d0e8e9b70b20f57c04
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>