Merge "[DeadLock]AMS PMS MountService"

        if (getInstantAppPackageName(Binder.getCallingUid()) != null) {

            return null;

        }

        // writer

        synchronized (mPackages) {

        if (!isExternalMediaAvailable()) {

                // If the external storage is no longer mounted at this point,

                // the caller may not have been able to delete all of this

                // packages files and can not delete any more.  Bail.

            return null;

        }

        synchronized (mPackages) {

            final ArrayList<PackageCleanItem> pkgs = mSettings.mPackagesToBeCleaned;

            if (lastPackage != null) {

                pkgs.remove(lastPackage);