running Accessibility scanner Set ImageButton minWidth/minHeight 48dp (min_tap_target_size) Bug: 125078917 Test: accessbility scanner Change-Id: I5b96cc476134d48eb503b5a6150406655331c673
1.Add a button to launch QR code scanner when add a network. 2.Scan button added in AddNetworkFragment / WifiDialog / WifiSettings. Bug: 120630683 Test: make RunSettingsRoboTests Change-Id: I340bfa2247e092f586dd90dfea37c355e681ffee