1. The findAccessibilityNodeInfosByTextUiThread was reusing an ArrayList
instance also used by the logic to initialize an AccessibilityNodeInfo.
Hence, if the find method got some view and creates the infos for them
the method creating the info was reusing the same array list and was
nuking its contents.
bug:6556585
Change-Id: I1d013bf7b1f715f8b4c4ba60c677233bec40647c