diff --git a/include/gui/BufferQueueProducer.h b/include/gui/BufferQueueProducer.h
index 9cfb383..e6ee6c6 100644
--- a/include/gui/BufferQueueProducer.h
+++ b/include/gui/BufferQueueProducer.h
@@ -177,8 +177,7 @@
             sp<Fence>* outFence, float outTransformMatrix[16]) override;
 
     // See IGraphicBufferProducer::getFrameTimestamps
-    virtual bool getFrameTimestamps(uint64_t frameNumber,
-            FrameTimestamps* outTimestamps) override;
+    virtual void getFrameTimestamps(FrameEventHistoryDelta* outDelta) override;
 
     // See IGraphicBufferProducer::getUniqueId
     virtual status_t getUniqueId(uint64_t* outId) const override;
@@ -195,9 +194,8 @@
     // BufferQueueCore::INVALID_BUFFER_SLOT otherwise
     int getFreeSlotLocked() const;
 
-    bool addAndGetFrameTimestamps(
-            const NewFrameEventsEntry* newTimestamps,
-            uint64_t frameNumber, FrameTimestamps* outTimestamps);
+    void addAndGetFrameTimestamps(const NewFrameEventsEntry* newTimestamps,
+            FrameEventHistoryDelta* outDelta);
 
     // waitForFreeSlotThenRelock finds the oldest slot in the FREE state. It may
     // block if there are no available slots and we are not in non-blocking