Add OnLayoutCompleted() Listener.

OnLayoutCompleted() Listener for RecyclerView.LayoutManager#onLayoutCompleted(RecyclerView.State) so we can do impression logging when RecyclerView has finished laying out the items.

Bug: 204781396
Test: Manual
Change-Id: I59b81e98415b2b0c6f3b26d2c41d348242342048
1 file changed