Allow factory reset when bluetooth is off (1/2)

Bug: 27348444
Change-Id: I6c2709371b86581709649d7faf09391230449b9b
diff --git a/core/java/android/bluetooth/BluetoothAdapter.java b/core/java/android/bluetooth/BluetoothAdapter.java
index d762a17..2a7eff8 100644
--- a/core/java/android/bluetooth/BluetoothAdapter.java
+++ b/core/java/android/bluetooth/BluetoothAdapter.java
@@ -36,6 +36,7 @@
 import android.os.ParcelUuid;
 import android.os.RemoteException;
 import android.os.ServiceManager;
+import android.os.SystemProperties;
 import android.util.Log;
 import android.util.Pair;
 
@@ -1015,6 +1016,8 @@
         try {
             if (mService != null) {
                 return mService.factoryReset();
+            } else {
+                SystemProperties.set("persist.bluetooth.factoryreset", "true");
             }
         } catch (RemoteException e) {Log.e(TAG, "", e);}
         return false;