diff --git a/services/camera/libcameraservice/CameraService.h b/services/camera/libcameraservice/CameraService.h
index 064863f..d332f6e 100644
--- a/services/camera/libcameraservice/CameraService.h
+++ b/services/camera/libcameraservice/CameraService.h
@@ -536,6 +536,7 @@
         void onUidGone(uid_t uid, bool disabled);
         void onUidActive(uid_t uid);
         void onUidIdle(uid_t uid, bool disabled);
+        void onUidStateChanged(uid_t uid __unused, int32_t procState __unused, int64_t procStateSeq __unused) {}
 
         void addOverrideUid(uid_t uid, String16 callingPackage, bool active);
         void removeOverrideUid(uid_t uid, String16 callingPackage);