Make UidImportanceListener a final field.

Bug: 342006701
Test: compile
Change-Id: I0deb3b6201171c628246d789d5075c3ec00b062b

1 files changed, 1 insertions, 1 deletions

diff --git a/services/core/java/com/android/server/display/DisplayManagerService.java b/services/core/java/com/android/server/display/DisplayManagerService.java
index c21cc0de287a..2a4b8cffbc38 100644
--- a/services/core/java/com/android/server/display/DisplayManagerService.java
+++ b/services/core/java/com/android/server/display/DisplayManagerService.java
@@ -274,7 +274,7 @@ public final class DisplayManagerService extends SystemService {
     private WindowManagerInternal mWindowManagerInternal;
     private InputManagerInternal mInputManagerInternal;
     private ActivityManagerInternal mActivityManagerInternal;
-    private UidImportanceListener mUidImportanceListener = new UidImportanceListener();
+    private final UidImportanceListener mUidImportanceListener = new UidImportanceListener();
     @Nullable
     private IMediaProjectionManager mProjectionService;
     private DeviceStateManagerInternal mDeviceStateManager;