Restrict access to AbsListView internals.

There is in general very low usage of these and they do not seem much
legitimate. Also if there is some customization needed RecyclerView
is the answer. We certainly do not want to start opening these internals.
Please see individual justifications as comments per each item.

Bug: b/123769398
Bug: b/123769710
Bug: b/123768941
Bug: b/123769413
Bug: b/123769379
Test: N/A
Change-Id: I04cacc69612f0693f83fe5caa1cb02490bfb0fcb