Merge "Add in sandbox UIDs when configuring VPN." into tm-dev

    }

    // Note: Return type guarantees results are deduped and sorted, which callers require.

    // This method also adds the SDK sandbox UIDs corresponding to the applications by default,

    // since apps are generally not aware of them, yet they should follow the VPN configuration

    // of the app they belong to.

    private SortedSet<Integer> getAppsUids(List<String> packageNames, int userId) {

        SortedSet<Integer> uids = new TreeSet<>();

        for (String app : packageNames) {

            int uid = getAppUid(app, userId);

            if (uid != -1) uids.add(uid);

            if (Process.isApplicationUid(uid)) {

                uids.add(Process.toSdkSandboxUid(uid));

            }

        }

        return uids;

    }