Do not allow setting notification access across users.

For mutil user case, make sure the calling userid
matching the passing userid

Test: test it on sample app
Bug: 298635078
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:15eec4872d7b0fdfead3a8f5b4a1bb4d9ad82a0c)
Merged-In: I6c478ebcc1d981faf2d125a4b41909c3b6a30a2a
Change-Id: I6c478ebcc1d981faf2d125a4b41909c3b6a30a2a

Author: Evan Chen

services/companion/java/com/android/server/companion/CompanionDeviceManagerService.java

@@ -540,8 +540,7 @@ public void disassociate(int associationId) {
         public PendingIntent requestNotificationAccess(ComponentName component, int userId)
                 throws RemoteException {
             String callingPackage = component.getPackageName();
-            checkCanCallNotificationApi(callingPackage);
-            // TODO: check userId.
+            checkCanCallNotificationApi(callingPackage, userId);
             if (component.flattenToString().length() > MAX_CN_LENGTH) {
                 throw new IllegalArgumentException("Component name is too long.");
             }
@@ -567,7 +566,7 @@ public PendingIntent requestNotificationAccess(ComponentName component, int user
         @Deprecated
         @Override
         public boolean hasNotificationAccess(ComponentName component) throws RemoteException {
-            checkCanCallNotificationApi(component.getPackageName());
+            checkCanCallNotificationApi(component.getPackageName(), getCallingUserId());
             NotificationManager nm = getContext().getSystemService(NotificationManager.class);
             return nm.isNotificationListenerAccessGranted(component);
         }
@@ -724,8 +723,7 @@ public void createAssociation(String packageName, String macAddress, int userId,
             legacyCreateAssociation(userId, macAddress, packageName, null);
         }
 
-        private void checkCanCallNotificationApi(String callingPackage) {
-            final int userId = getCallingUserId();
+        private void checkCanCallNotificationApi(String callingPackage, int userId) {
             enforceCallerIsSystemOr(userId, callingPackage);
 
             if (getCallingUid() == SYSTEM_UID) return;