Use getUserHandles() instead of getUsers() to get user id

UserManager#getUsers() is a hidden API, use getUserHandles() to
get user id instead in PermissionMonitor.

Bug: 171529940
Test: atest FrameworksNetTests
Change-Id: Ic304627688de8e49505a95ebc99628b2e0eafab9
diff --git a/services/core/java/com/android/server/connectivity/PermissionMonitor.java b/services/core/java/com/android/server/connectivity/PermissionMonitor.java
index 4c63eb4..d507b5f 100644
--- a/services/core/java/com/android/server/connectivity/PermissionMonitor.java
+++ b/services/core/java/com/android/server/connectivity/PermissionMonitor.java
@@ -35,7 +35,6 @@
 import android.content.pm.PackageManager;
 import android.content.pm.PackageManager.NameNotFoundException;
 import android.content.pm.PackageManagerInternal;
-import android.content.pm.UserInfo;
 import android.net.INetd;
 import android.net.UidRange;
 import android.os.Build;
@@ -174,11 +173,9 @@
             netdPermsUids.put(uid, netdPermsUids.get(uid) | otherNetdPerms);
         }
 
-        List<UserInfo> users = mUserManager.getAliveUsers();
-        if (users != null) {
-            for (UserInfo user : users) {
-                mUsers.add(user.id);
-            }
+        final List<UserHandle> users = mUserManager.getUserHandles(true /* excludeDying */);
+        for (UserHandle user : users) {
+            mUsers.add(user.getIdentifier());
         }
 
         final SparseArray<ArraySet<String>> systemPermission =
diff --git a/tests/net/java/com/android/server/connectivity/PermissionMonitorTest.java b/tests/net/java/com/android/server/connectivity/PermissionMonitorTest.java
index de35f91..3556c72 100644
--- a/tests/net/java/com/android/server/connectivity/PermissionMonitorTest.java
+++ b/tests/net/java/com/android/server/connectivity/PermissionMonitorTest.java
@@ -58,7 +58,6 @@
 import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.PackageManagerInternal;
-import android.content.pm.UserInfo;
 import android.net.INetd;
 import android.net.UidRange;
 import android.os.Build;
@@ -123,10 +122,10 @@
         MockitoAnnotations.initMocks(this);
         when(mContext.getPackageManager()).thenReturn(mPackageManager);
         when(mContext.getSystemService(eq(Context.USER_SERVICE))).thenReturn(mUserManager);
-        when(mUserManager.getAliveUsers()).thenReturn(
-                Arrays.asList(new UserInfo[] {
-                        new UserInfo(MOCK_USER1, "", 0),
-                        new UserInfo(MOCK_USER2, "", 0),
+        when(mUserManager.getUserHandles(eq(true))).thenReturn(
+                Arrays.asList(new UserHandle[] {
+                        new UserHandle(MOCK_USER1),
+                        new UserHandle(MOCK_USER2),
                 }));
 
         mPermissionMonitor = spy(new PermissionMonitor(mContext, mNetdService, mDeps));