Merge "Adds an --overwrite flag to always overwrite install dir." am: 7c7b7d0ea8 am: 254f45a4dd am: f244dc9292 am: d44e2870ab

Original change: https://android-review.googlesource.com/c/platform/development/+/1405278

Change-Id: I5767e5f7274d76dc5fec4954c6652d1f4880d5ab