Adding isDemoUser method in userManager
am: b5bf3e6cee

Change-Id: Id59e1b1a543b96f17253133acf0cd42ea9be17f2
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index e1c64a7..c919db8 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -4171,6 +4171,10 @@
             return Collections.EMPTY_LIST;
         }
         ComponentName component = info.getTargetComponent();
+        if (component == null) {
+            return Collections.EMPTY_LIST;
+        }
+
         List<String> ids = mDeepShortcutMap.get(new ComponentKey(component, info.user));
         return ids == null ? Collections.EMPTY_LIST : ids;
     }