Merge "Use killUid() instead of killApplication()." into rvc-dev am:...

Merge "Use killUid() instead of killApplication()." into rvc-dev am: 804ac87b am: 115ba2ff am: dbde9ce7 am: 9e0771c0

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11721690

Change-Id: Ieddad9cb360bc7081a40b74356b46339b5f5493e