We shouldn't delete accounts when a package is being updated.

        mContext.registerReceiver(new BroadcastReceiver() {

            @Override

            public void onReceive(Context context1, Intent intent) {

                // Don't delete accounts when updating a authenticator's

                // package.

                if (!intent.getBooleanExtra(Intent.EXTRA_REPLACING, false)) {

                    purgeOldGrantsAll();

                }

            }

        }, intentFilter);

        IntentFilter userFilter = new IntentFilter();