SF: add render rate to the refresh rate overlay

Test: Enable refresh rate overlay
Bug: 257072060
Change-Id: I7c81bdff7ed10beb7487b930448f8c5dc7770073
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index e3217a3..b9903a7 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -639,6 +639,8 @@
     bool mKernelIdleTimerEnabled = false;
     // Show spinner with refresh rate overlay
     bool mRefreshRateOverlaySpinner = false;
+    // Show render rate with refresh rate overlay
+    bool mRefreshRateOverlayRenderRate = false;
 
     void setDesiredActiveMode(display::DisplayModeRequest&&) REQUIRES(mStateLock);