diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index f5d8eb4..273ce22 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -431,6 +431,7 @@
     virtual status_t captureLayers(const sp<IBinder>& parentHandle, sp<GraphicBuffer>* outBuffer,
                                    const Rect& sourceCrop, float frameScale, bool childrenOnly);
     virtual status_t getDisplayStats(const sp<IBinder>& displayToken, DisplayStatInfo* stats);
+    virtual status_t getDisplayViewport(const sp<IBinder>& display, Rect* outViewport);
     virtual status_t getDisplayConfigs(const sp<IBinder>& displayToken,
                                        Vector<DisplayInfo>* configs);
     virtual int getActiveConfig(const sp<IBinder>& displayToken);