void OnDidGetPrintedPagesCount(int cookie, int number_pages);
void OnDidGetDocumentCookie(int cookie);
void OnDidPrintPage(const PrintHostMsg_DidPrintPage_Params& params);
+ void OnShowInvalidPrinterSettingsError();
// Processes a NOTIFY_PRINT_JOB_EVENT notification.
void OnNotifyPrintJobEvent(const JobEventDetails& event_details);