Merge "[Testing] Remove Robolectric import and use AndroidJUnit4 instead in MobileDataEnabledListenerTest" am: f5fa52884b am: 49936c5eb5

Original change: https://android-review.googlesource.com/c/platform/packages/apps/Settings/+/1427810

Change-Id: Ifa4dc400eb8c87c2514a3629288657520476fbfd