1 files changed, 10 insertions, 0 deletions
diff --git a/public/fpdf_ext.h b/public/fpdf_ext.h
index e488c5283b..a531f1407e 100644
--- a/public/fpdf_ext.h
+++ b/public/fpdf_ext.h
@@ -7,6 +7,8 @@
 #ifndef PUBLIC_FPDF_EXT_H_
 #define PUBLIC_FPDF_EXT_H_
 
+#include <time.h>
+
 // NOLINTNEXTLINE(build/include)
 #include "fpdfview.h"
 
@@ -67,6 +69,14 @@ typedef struct _UNSUPPORT_INFO {
 FPDF_EXPORT FPDF_BOOL FPDF_CALLCONV
 FSDK_SetUnSpObjProcessHandler(UNSUPPORT_INFO* unsp_info);
 
+// Sets generator function for calls to time.
+//
+// This API is intended to be used only for testing, thus may cause PDFium to
+// behave poorly in production environments.
+//
+//   func - Function pointer to alternate implementation of time.
+FPDF_EXPORT void FPDF_CALLCONV FSDK_SetTimeFunction(time_t (*func)());
+
 // Unknown page mode.
 #define PAGEMODE_UNKNOWN -1
 // Document outline, and thumbnails hidden.