Fixed how com.android.server.pm.Settings handle pre-created users.

Its getAllUsers() method was not returning pre-created users, so
packages installed for a "regular" user were not marked as
"installed=false" for the pre-created users. Hence, when the
pre-created was "promoted" to a full user, it contained such
packages.

Here's how to reproduce the issue:

$ m -j ApiDemos

$ adb shell pm create-user --pre-create-only
Success: created user id 10

$ adb install --user cur $OUT/testcases/ApiDemos/arm64/ApiDemos.apk
Performing Streamed Install
Success

$ adb shell pm list packages --user cur | grep com.example.android.apis || echo
package:com.example.android.apis

$ adb shell pm list packages --user 10 | grep com.example.android.apis || echo "NOT FOUND"
package:com.example.android.apis # Should return "NOT FOUND"

$ adb shell pm create-user FullUserIAm
Success: created user id 10

$ adb shell pm list packages --user 10 | grep com.example.android.apis || echo "NOT FOUND"
package:com.example.android.apis # Should return "NOT FOUND"

With this fix, it returns "NOT FOUND" in the expected steps.

Fixes: 160252062
Fixes: 162847145
Test: see above

Change-Id: I6cd17ac588a4d95bf0ea704dd18387e19eeab374
(cherry picked from commit 00175974ba24d982ecfe760ee78a1a17bb326d04)

services/core/java/com/android/server/pm/Settings.java

@@ -2709,7 +2709,7 @@ public final class Settings {
 
     private void writePackageListLPrInternal(int creatingUserId) {
         // Only derive GIDs for active users (not dying)
-        final List<UserInfo> users = getUsers(UserManagerService.getInstance(), true);
+        final List<UserInfo> users = getActiveUsers(UserManagerService.getInstance(), true);
         int[] userIds = new int[users.size()];
         for (int i = 0; i < userIds.length; i++) {
             userIds[i] = users.get(i).id;
@@ -4449,25 +4449,43 @@ public final class Settings {
     }
 
     /**
-     * Return all users on the device, including partial or dying users.
+     * Returns all users on the device, including pre-created and dying users.
+     *
      * @param userManager UserManagerService instance
      * @return the list of users
      */
     private static List<UserInfo> getAllUsers(UserManagerService userManager) {
-        return getUsers(userManager, false);
+        return getUsers(userManager, /* excludeDying= */ false, /* excludePreCreated= */ false);
     }
 
     /**
-     * Return the list of users on the device. Clear the calling identity before calling into
+     * Returns the list of users on the device, excluding pre-created ones.
-     * UserManagerService.
+     *
      * @param userManager UserManagerService instance
      * @param excludeDying Indicates whether to exclude any users marked for deletion.
+     *
      * @return the list of users
      */
-    private static List<UserInfo> getUsers(UserManagerService userManager, boolean excludeDying) {
+    private static List<UserInfo> getActiveUsers(UserManagerService userManager,
+            boolean excludeDying) {
+        return getUsers(userManager, excludeDying, /* excludePreCreated= */ true);
+    }
+
+    /**
+     * Returns the list of users on the device.
+     *
+     * @param userManager UserManagerService instance
+     * @param excludeDying Indicates whether to exclude any users marked for deletion.
+     * @param excludePreCreated Indicates whether to exclude any pre-created users.
+     *
+     * @return the list of users
+     */
+    private static List<UserInfo> getUsers(UserManagerService userManager, boolean excludeDying,
+            boolean excludePreCreated) {
         long id = Binder.clearCallingIdentity();
         try {
-            return userManager.getUsers(excludeDying);
+            return userManager.getUsers(/* excludePartial= */ true, excludeDying,
+                    excludePreCreated);
         } catch (NullPointerException npe) {
             // packagemanager not yet initialized
         } finally {