add disable Ephemeral Network API

Bug:18525241

Change-Id: I954c53c55c39f6c376b2bae3c7ac4d28246a7f5a

wifi/java/android/net/wifi/IWifiManager.aidl

@@ -154,5 +154,7 @@ interface IWifiManager
     void setAllowScansWithTraffic(int enabled);
 
     WifiConnectionStatistics getConnectionStatistics();
+
+    void disableEphemeralNetwork(String SSID);
 }
 

wifi/java/android/net/wifi/WifiManager.java

@@ -1632,7 +1632,6 @@ public class WifiManager {
     /** @hide */
     public static final int RSSI_PKTCNT_FETCH_FAILED        = BASE + 22;
 
-
     /**
      * Passed with {@link ActionListener#onFailure}.
      * Indicates that the operation failed due to an internal error.
@@ -1981,6 +1980,20 @@ public class WifiManager {
         sAsyncChannel.sendMessage(DISABLE_NETWORK, netId, putListener(listener));
     }
 
+    /**
+     * Disable ephemeral Network
+     *
+     * @param SSID, in the format of WifiConfiguration's SSID.
+     * @hide
+     */
+    public void disableEphemeralNetwork(String SSID) {
+        if (SSID == null) throw new IllegalArgumentException("SSID cannot be null");
+        try {
+            mService.disableEphemeralNetwork(SSID);
+        } catch (RemoteException e) {
+        }
+    }
+
     /**
      * Start Wi-fi Protected Setup
      *