Changed DnsPinger to use the system default DNS if linkprops doesn't have a dns. This mirrors the behavior of the system overall. Minor changes to wifiWatchdogService settings. Change-Id: I8de73cf5bd24bc69343c7d9dc999d198195ec0ec
Changed DnsPinger to use the system default DNS if linkprops doesn't have a dns. This mirrors the behavior of the system overall. Minor changes to wifiWatchdogService settings. Change-Id: I8de73cf5bd24bc69343c7d9dc999d198195ec0ec