Fix compile error introduced by ag/842950.

// The request size is bounded by the maximum size of a FUSE_WRITE request

// because it has the largest possible data payload.

constexpr size_t MAX_REQUEST_SIZE = sizeof(struct fuse_in_header) +

        sizeof(struct fuse_write_in) + std::max(MAX_WRITE, MAX_READ);

        sizeof(struct fuse_write_in) + (MAX_WRITE > MAX_READ ? MAX_WRITE : MAX_READ);

static jclass app_fuse_class;

static jmethodID app_fuse_get_file_size;