add logging for Launcher backup and restore events

Test: Manually verify logs
Bug: 294386159
Change-Id: Ic3a77f4a09556e0d769837129e0bd094f1e91b6b
diff --git a/src/com/android/launcher3/LauncherBackupAgent.java b/src/com/android/launcher3/LauncherBackupAgent.java
index 3d2700d..2617b93 100644
--- a/src/com/android/launcher3/LauncherBackupAgent.java
+++ b/src/com/android/launcher3/LauncherBackupAgent.java
@@ -34,7 +34,7 @@
         // Remove old files which might contain obsolete attributes like idp_grid_name in shared
         // preference that will obstruct backup's attribute from writing to shared preferences.
         if (destination.delete()) {
-            FileLog.d("LauncherBackupAgent", "Removed obsolete file: " + destination);
+            FileLog.d(TAG, "onRestoreFile: Removed obsolete file " + destination);
         }
         super.onRestoreFile(data, size, destination, type, mode, mtime);
     }
@@ -47,6 +47,7 @@
 
     @Override
     public void onRestoreFinished() {
+        FileLog.d(TAG, "onRestoreFinished: set pending for RestoreDbTask");
         RestoreDbTask.setPending(this);
     }
 }