1. My previous change to restrain AccessibilityNodeInfo to report children
if it is root namespace did not take into account that the tompost view
i.e. the decor view actually is a root namespace. Adding check to allow
the info to report children of rthe topmost view but do not do so if a
descendant is flagged as root namespace.
bug:5086988
Change-Id: Ib82b8ebe5a2c287ab1c5333d130ec50eb9ced78c
93b2182a2e