The name "Allow multiple users" is too ambiguous. It sounds like by toggling it off, the feature is completely disabled. In fact, it only hides user switcher. In conjunction with hiding other users from the list, it makes it appear as all the users get deleted when the toggle is off. On the contrary, users might be running in background when the toggle is off.
After this change, the new name better represents the intention behind this toggle, as well as makes the UI more intuitive. The users are not being hidden anymore. But switching preference gets disabled.
Since the toggle can only be enabled or disabled by owner (after this refactoring), it means that Owner has full control over multiuser settings and is able to perform actions on users without having to enable the toggle.
Bug: 336762423
Test: atest UserSettingsTest && atest UserDetailsSettingsTest
Flag: android.multiuser.new_multiuser_settings_ux
Change-Id: Id9d507039b58d3df66fe78710409716fd4816890
Move "Turn on phone calls" from guest detail user screen to user screen.
Optimisation: Applying restrictions to default guest user has been moved
to UserManagerService -> setDefaultGuestRestrictions.
Following UX there is no need for confirmation dialog.
Bug: 191483069
Test: make RunSettingsRoboTests -j128 ROBOTEST_FILTER="com.android.settings.users.GuestTelephonyPreferenceControllerTest"
make RunSettingsRoboTests -j128 ROBOTEST_FILTER="com.android.settings.users.UserSettingsTest"
Change-Id: Id7391d3f85954ea7f9c94791f24174105ec8073e
