Add layoutBothForTesting(int, int, int, int) to CarUiRecyclerView.

The api was originally added in the PagedRecyclerView. Dialer needs it
to layout the nested RecyclerView so it can present the list item views
and allow us to verify if the UI is presented correctly.

Bug: 142976184
Test: manually
Change-Id: If54779afbabc0981b9b20361b641aadc56326a76
1 file changed