Purge Nonexistent User Jobs on Boot

In the case that a user has been removed but their jobs still exist on
disk, the JobSchedulerService will remove all jobs not associated with
current users on boot.
Exposed UserManagerService#getUserIds() via UserManagerInternal for
quick user id retrieval.

Fixes: 38261977
Test: manual

Change-Id: Id4b3c0a4142b4818fcd875eef18ea03f3c45ca40
Signed-off-by: Michael Wachenschwanz <mwachens@google.com>
diff --git a/services/core/java/com/android/server/pm/UserManagerService.java b/services/core/java/com/android/server/pm/UserManagerService.java
index 30c4009..b115422 100644
--- a/services/core/java/com/android/server/pm/UserManagerService.java
+++ b/services/core/java/com/android/server/pm/UserManagerService.java
@@ -3684,6 +3684,11 @@
         }
 
         @Override
+        public int[] getUserIds() {
+            return UserManagerService.this.getUserIds();
+        }
+
+        @Override
         public boolean isUserUnlockingOrUnlocked(int userId) {
             synchronized (mUserStates) {
                 int state = mUserStates.get(userId, -1);