public:

///

// Set |substitute_data| to the replacement for the data in |data| if data

// should be modified.

///

/*--cef()--*/

virtual void ProcessData(const void* data, int data_size,

CefRefPtr<CefStreamReader>& substitute_data) {}

///

// Called when there is no more data to be processed. It is expected that

// whatever data was retained in the last ProcessData() call, it should be

// returned now by setting |remainder| if appropriate.

///

/*--cef()--*/

virtual void Drain(CefRefPtr<CefStreamReader>& remainder) {}