Add new MediaDrm methods

            KeyStatusType mType;

        };

        // Enumerate HDCP output protection levels

        enum HdcpLevel {

            // Failure to access HDCP level, an error occurred

            kHdcpLevelUnknown,

            // HDCP is not supported on this device, content is unprotected

            kHdcpNone,

            // HDCP version 1.0

            kHdcpV1,

            // HDCP version 2.0 Type 1.

            kHdcpV2,

            // HDCP version 2.1 Type 1.

            kHdcpV2_1,

            // HDCP version 2.2 Type 1.

            kHdcpV2_2,

            // No digital output, implicitly secure

            kHdcpNoOutput = 0x7fff

        };

        // SecurityLevel indicates the level of robustness of the DRM

        // implementation on the device

        enum SecurityLevel {

            // Failure to access security level, an error occurred

            kSecurityLevelUnknown,

            // Software-based whitebox crypto

            kSecurityLevelSwSecureCrypto,

            // Software-based whitebox crypto and an obfuscated decoder

            kSecurityLevelSwSecureDecode,

            // DRM key management and crypto operations are performed within a

            // hardware backed trusted execution environment

            kSecurityLevelHwSecureCrypto,

            // DRM key management, crypto operations and decoding of content

            // are performed within a hardware backed trusted execution environment

            kSecurityLevelHwSecureDecode,

            // DRM key management, crypto operations, decoding of content  and all

            // handling of the media (compressed and uncompressed) is handled within

            // a hardware backed trusted execution environment.

            kSecurityLevelHwSecureAll

        };

        DrmPlugin() {}

        virtual ~DrmPlugin() {}