1. View is checking if the accessibility focus is its
descendant it clears the accessibility focus state
in ViewRootImpl. The check in View was missing the
case that the descendant may be the view itself. In
such a case we want the normal clearing code to run.
2. The check whether a view has iterable text for
accessibility was inverted and text nav was not
working.
Change-Id: I1a13b6809fb7f205fff76ca09cd449179d06e530
64899e5c8f