[sf] make legacy frontend debug flag persistent am: 3e76a50f69

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/21801174

Change-Id: I8eca22713762ed0a9bcb3aa63778e39e2dc8e0c5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 786706a..2c1e333 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -476,7 +476,7 @@
     mLayerLifecycleManagerEnabled =
             base::GetBoolProperty("persist.debug.sf.enable_layer_lifecycle_manager"s, false);
     mLegacyFrontEndEnabled = !mLayerLifecycleManagerEnabled ||
-            base::GetBoolProperty("debug.sf.enable_legacy_frontend"s, true);
+            base::GetBoolProperty("persist.debug.sf.enable_legacy_frontend"s, false);
 }
 
 LatchUnsignaledConfig SurfaceFlinger::getLatchUnsignaledConfig() {