Merge "Update the text of background app battery usage notification." into...

Merge "Update the text of background app battery usage notification." into tm-dev am: 885af3d5 am: 5c28c0a0 am: 65cab7b9

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17697827



Change-Id: Ice29c77349dd8b7ba1ec857727bffdbabee56b9a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>