sys user split: add user logout

Adding a user logout option as a pending notification. Similar to the
guest user remove notification.  This allows the end user to return
to system user "login" screen.

Bug: 19913735
Change-Id: I72c49c12e9c8acef92be2353008468acb3d7a795
diff --git a/packages/SystemUI/res/values/strings.xml b/packages/SystemUI/res/values/strings.xml
index adc661f..e392c11 100644
--- a/packages/SystemUI/res/values/strings.xml
+++ b/packages/SystemUI/res/values/strings.xml
@@ -852,6 +852,15 @@
     <!-- Remove action in the notification shown to a new guest user [CHAR LIMIT=30] -->
     <string name="guest_notification_remove_action">REMOVE GUEST</string>
 
+    <!-- Title of the notification shown to logout the current user [CHAR LIMIT=60] -->
+    <string name="user_logout_notification_title">Logout user</string>
+
+    <!-- Text of the notification shown to logout the current user [CHAR LIMIT=60] -->
+    <string name="user_logout_notification_text">To logout the current user, stop user applications.</string>
+
+    <!-- Logout action in the notification shown to logout the current user [CHAR LIMIT=30] -->
+    <string name="user_logout_notification_action">LOGOUT USER</string>
+
     <!-- Title for add user confirmation dialog [CHAR LIMIT=30] -->
     <string name="user_add_user_title" msgid="2108112641783146007">Add new user?</string>