Merge "Fix memory leak when GateKeeperProxy.verify() returns" am: 855a643d

    virtual int verify(uint32_t uid,

            const uint8_t *enrolled_password_handle, uint32_t enrolled_password_handle_length,

            const uint8_t *provided_password, uint32_t provided_password_length, bool *request_reenroll) {

        uint8_t *auth_token;

        uint8_t *auth_token = nullptr;

        uint32_t auth_token_length;

        return verifyChallenge(uid, 0, enrolled_password_handle, enrolled_password_handle_length,

        int ret = verifyChallenge(uid, 0, enrolled_password_handle, enrolled_password_handle_length,

                provided_password, provided_password_length,

                &auth_token, &auth_token_length, request_reenroll);

        delete [] auth_token;

        return ret;

    }

    virtual int verifyChallenge(uint32_t uid, uint64_t challenge,