move to backup helper architecture

add journals to DecoderRing, for backup debugging

Bug: 10778984
Change-Id: I38e93853c05f72468b3800c172b96effc70a63e0
diff --git a/src/com/android/launcher3/LauncherProvider.java b/src/com/android/launcher3/LauncherProvider.java
index 5a8f630..39afe10 100644
--- a/src/com/android/launcher3/LauncherProvider.java
+++ b/src/com/android/launcher3/LauncherProvider.java
@@ -210,7 +210,7 @@
         }
 
         // always notify the backup agent
-        LauncherBackupAgent.dataChanged(getContext());
+        LauncherBackupAgentHelper.dataChanged(getContext());
     }
 
     private void addModifiedTime(ContentValues values) {