diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 2a6836e..c922f30 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -780,7 +780,7 @@
 
     bool isDisplayConfigAllowed(int32_t configId) const REQUIRES(mStateLock);
 
-    bool previousFrameMissed();
+    bool previousFrameMissed(int graceTimeMs = 0);
 
     // Populates the expected present time for this frame. For negative offsets, performs a
     // correction using the predicted vsync for the next frame instead.