update placeholder on package install or restore

Bug: 10778992
Change-Id: I3293d8bab8ae0ef49fc5554531bba5bd6f70932c
diff --git a/src/com/android/launcher3/ItemInfo.java b/src/com/android/launcher3/ItemInfo.java
index 36ba6c1..3dc92c9 100644
--- a/src/com/android/launcher3/ItemInfo.java
+++ b/src/com/android/launcher3/ItemInfo.java
@@ -122,6 +122,10 @@
         throw new RuntimeException("Unexpected Intent");
     }
 
+    protected Intent getRestoredIntent() {
+        throw new RuntimeException("Unexpected Intent");
+    }
+
     /**
      * Write the fields of this item to the DB
      *