7b1e0c7046
1. The initial design was to have some accessibility gestures being handled by the system if the gesture handling access service does not consume the gesture. However, we are not sure what a good default is and once we add a default handler we cannot remove it since people may rely on it. Thus, we take the simples approach and let the accessibility service handle the gestures. If no gestures are handled the system will work in explore by touch as before. bug:5932640 Change-Id: I865a83549fa03b0141d27ce9713e9b7bb45a57b4