1. AccessibilityNodeInfos for visible views should always
be reported and the clients should be able to check
whether that node info is shown to the user. For example,
focus search may return a node that is not on the screen
and the accessibility layer may decide to give it focus
which scroll the source view in the screen.
bug:6421991
Change-Id: Idc1fd8512dda767abe802aacedb0c69582e6fc2a