diff --git a/include/gui/BufferQueueProducer.h b/include/gui/BufferQueueProducer.h
index 65dea0d..9cfb383 100644
--- a/include/gui/BufferQueueProducer.h
+++ b/include/gui/BufferQueueProducer.h
@@ -178,7 +178,7 @@
 
     // See IGraphicBufferProducer::getFrameTimestamps
     virtual bool getFrameTimestamps(uint64_t frameNumber,
-            FrameTimestamps* outTimestamps) const override;
+            FrameTimestamps* outTimestamps) override;
 
     // See IGraphicBufferProducer::getUniqueId
     virtual status_t getUniqueId(uint64_t* outId) const override;
@@ -195,6 +195,10 @@
     // BufferQueueCore::INVALID_BUFFER_SLOT otherwise
     int getFreeSlotLocked() const;
 
+    bool addAndGetFrameTimestamps(
+            const NewFrameEventsEntry* newTimestamps,
+            uint64_t frameNumber, FrameTimestamps* outTimestamps);
+
     // 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
     // mode (producer and consumer controlled by the application). If it blocks,