Merge "update cas plugin interface for cas@1.2" am: 1d10c6f3

        size_t size,

        const CasSessionId *sessionId);

typedef void (*CasPluginStatusCallback)(

        void *appData,

        int32_t event,

        int32_t arg);

struct CasFactory {

    CasFactory() {}

    virtual ~CasFactory() {}

    CasPlugin() {}

    virtual ~CasPlugin() {}

    // Provide a callback to report plugin status

    virtual status_t setStatusCallback(

            CasPluginStatusCallback callback) = 0;

    // Provide the CA private data from a CA_descriptor in the conditional

    // access table to a CasPlugin.

    virtual status_t setPrivateData(

    // streams.

    virtual status_t openSession(CasSessionId *sessionId) = 0;

    // Open a session with intend and mode for descrambling a program, or one

    // or more elementary streams.

    virtual status_t openSession(uint32_t intent, uint32_t mode,

                                     CasSessionId *sessionId) = 0;

    // Close a previously opened session.

    virtual status_t closeSession(const CasSessionId &sessionId) = 0;