Merge "Require rollback permission to use rollback install reason"

                    + "to use a data loader");

        }

        // INSTALL_REASON_ROLLBACK allows an app to be rolled back without requiring the ROLLBACK

        // capability; ensure if this is set as the install reason the app has one of the necessary

        // signature permissions to perform the rollback.

        if (params.installReason == PackageManager.INSTALL_REASON_ROLLBACK) {

            if (mContext.checkCallingOrSelfPermission(Manifest.permission.MANAGE_ROLLBACKS)

                    != PackageManager.PERMISSION_GRANTED &&

                    mContext.checkCallingOrSelfPermission(Manifest.permission.TEST_MANAGE_ROLLBACKS)

                    != PackageManager.PERMISSION_GRANTED) {

                throw new SecurityException(

                        "INSTALL_REASON_ROLLBACK requires the MANAGE_ROLLBACKS permission or the "

                                + "TEST_MANAGE_ROLLBACKS permission");

            }

        }

        // App package name and label length is restricted so that really long strings aren't

        // written to disk.

        if (params.appPackageName != null