diff --git a/services/surfaceflinger/Layer.h b/services/surfaceflinger/Layer.h
index f34fdd9..2fbbbdc 100644
--- a/services/surfaceflinger/Layer.h
+++ b/services/surfaceflinger/Layer.h
@@ -785,8 +785,8 @@
     void setFrameTimelineVsyncForBufferlessTransaction(const FrameTimelineInfo& info,
                                                        nsecs_t postTime);
 
-    void addSurfaceFrameDroppedForBuffer(
-            std::shared_ptr<frametimeline::SurfaceFrame>& surfaceFrame);
+    void addSurfaceFrameDroppedForBuffer(std::shared_ptr<frametimeline::SurfaceFrame>& surfaceFrame,
+                                         nsecs_t dropTime);
     void addSurfaceFramePresentedForBuffer(
             std::shared_ptr<frametimeline::SurfaceFrame>& surfaceFrame, nsecs_t acquireFenceTime,
             nsecs_t currentLatchTime);
@@ -795,6 +795,8 @@
             const FrameTimelineInfo& info, nsecs_t postTime);
     std::shared_ptr<frametimeline::SurfaceFrame> createSurfaceFrameForBuffer(
             const FrameTimelineInfo& info, nsecs_t queueTime, std::string debugName);
+    void setFrameTimelineVsyncForSkippedFrames(const FrameTimelineInfo& info, nsecs_t postTime,
+                                               std::string debugName);
 
     bool setTrustedPresentationInfo(TrustedPresentationThresholds const& thresholds,
                                     TrustedPresentationListener const& listener);