Localize owner's name to current locale until changed

Don't set a name for the system user and always return a localized
name until the user explicitly sets a name.

Bug: 27814125
Change-Id: I7972a45d77c07d9efbd67d5b360bacee46247a66
diff --git a/services/core/java/com/android/server/pm/UserManagerService.java b/services/core/java/com/android/server/pm/UserManagerService.java
index 715f1e5..ac19e24 100644
--- a/services/core/java/com/android/server/pm/UserManagerService.java
+++ b/services/core/java/com/android/server/pm/UserManagerService.java
@@ -458,7 +458,7 @@
                     continue;
                 }
                 if (!excludeDying || !mRemovingUserIds.get(ui.id)) {
-                    users.add(ui);
+                    users.add(userWithName(ui));
                 }
             }
             return users;
@@ -500,7 +500,7 @@
             if (mRemovingUserIds.get(profile.id)) {
                 continue;
             }
-            users.add(profile);
+            users.add(userWithName(profile));
         }
         return users;
     }
@@ -653,7 +653,21 @@
     public UserInfo getUserInfo(int userId) {
         checkManageUsersPermission("query user");
         synchronized (mUsersLock) {
-            return getUserInfoLU(userId);
+            return userWithName(getUserInfoLU(userId));
+        }
+    }
+
+    /**
+     * Returns a UserInfo object with the name filled in, for Owner, or the original
+     * if the name is already set.
+     */
+    private UserInfo userWithName(UserInfo orig) {
+        if (orig != null && orig.name == null && orig.id == UserHandle.USER_SYSTEM) {
+            UserInfo withName = new UserInfo(orig);
+            withName.name = getOwnerName();
+            return withName;
+        } else {
+            return orig;
         }
     }
 
@@ -1459,9 +1473,7 @@
             flags |= UserInfo.FLAG_ADMIN | UserInfo.FLAG_PRIMARY;
         }
         // Create the system user
-        UserInfo system = new UserInfo(UserHandle.USER_SYSTEM,
-                mContext.getResources().getString(com.android.internal.R.string.owner_name), null,
-                flags);
+        UserInfo system = new UserInfo(UserHandle.USER_SYSTEM, null, null, flags);
         UserData userData = new UserData();
         userData.info = system;
         synchronized (mUsersLock) {
@@ -1482,6 +1494,10 @@
         writeUserLP(userData);
     }
 
+    private String getOwnerName() {
+        return mContext.getResources().getString(com.android.internal.R.string.owner_name);
+    }
+
     private void scheduleWriteUser(UserData UserData) {
         if (DBG) {
             debug("scheduleWriteUser");
@@ -1551,9 +1567,11 @@
                     serializer.attribute(null, ATTR_SEED_ACCOUNT_TYPE, userData.seedAccountType);
                 }
             }
-            serializer.startTag(null, TAG_NAME);
-            serializer.text(userInfo.name);
-            serializer.endTag(null, TAG_NAME);
+            if (userInfo.name != null) {
+                serializer.startTag(null, TAG_NAME);
+                serializer.text(userInfo.name);
+                serializer.endTag(null, TAG_NAME);
+            }
             synchronized (mRestrictionsLock) {
                 UserRestrictionsUtils.writeRestrictions(serializer,
                         mBaseUserRestrictions.get(userInfo.id), TAG_RESTRICTIONS);