Merge "Start using new C++ Fstab class widely"

    // If we can use overlayfs, lets get it in place first

    // before we struggle with determining deduplication operations.

    if (!verity_enabled && fs_mgr_overlayfs_setup()) {

        std::unique_ptr<fstab, decltype(&fs_mgr_free_fstab)> fstab(fs_mgr_read_fstab_default(),

                                                                   fs_mgr_free_fstab);

        if (fs_mgr_overlayfs_mount_all(fstab.get())) {

        Fstab fstab;

        if (ReadDefaultFstab(&fstab) && fs_mgr_overlayfs_mount_all(&fstab)) {

            WriteFdExactly(fd.get(), "overlayfs mounted\n");

        }

    }