Have CaptivePortalTracker use gservices updateable provisioning urls.

After detecting there is a captive portal the url used in the
notification for mobile networks should be updateable via gservices.
These urls will be the same as used by CheckMp and is needed for
carriers that have specific provisioning urls such as AT&T and Verizon.

Bug: 9622647
Change-Id: Idcf4dabc72ece1dbbe1d5e5a21e550dd06fe16c7

core/java/android/net/ConnectivityManager.java

@@ -1360,7 +1360,7 @@ public class ConnectivityManager {
     }
 
     /**
-     * Get the carrier provisioning url.
+     * Get the mobile provisioning url.
      * {@hide}
      */
     public String getMobileProvisioningUrl() {
@@ -1370,4 +1370,16 @@ public class ConnectivityManager {
         }
         return null;
     }
+
+    /**
+     * Get the mobile redirected provisioning url.
+     * {@hide}
+     */
+    public String getMobileRedirectedProvisioningUrl() {
+        try {
+            return mService.getMobileRedirectedProvisioningUrl();
+        } catch (RemoteException e) {
+        }
+        return null;
+    }
 }

core/java/android/net/IConnectivityManager.aidl

@@ -136,4 +136,6 @@ interface IConnectivityManager
     int checkMobileProvisioning(boolean sendNotification, int suggestedTimeOutMs, in ResultReceiver resultReceiver);
 
     String getMobileProvisioningUrl();
+
+    String getMobileRedirectedProvisioningUrl();
 }