Moves ash::user::LoginStatus to ash/common

ash/system/user/tray_user_separator.h

Index: ash/system/user/tray_user_separator.h
diff --git a/ash/system/user/tray_user_separator.h b/ash/system/user/tray_user_separator.h
index 76fd9b281f6d5a3294c4159bd450600fe45a64e1..ade3da12f83ee1ed873a5deae1a312187b36765a 100644
--- a/ash/system/user/tray_user_separator.h
+++ b/ash/system/user/tray_user_separator.h
@@ -24,13 +24,13 @@ class ASH_EXPORT TrayUserSeparator : public SystemTrayItem {
 
  private:
   // Overridden from SystemTrayItem.
-  views::View* CreateTrayView(user::LoginStatus status) override;
-  views::View* CreateDefaultView(user::LoginStatus status) override;
-  views::View* CreateDetailedView(user::LoginStatus status) override;
+  views::View* CreateTrayView(LoginStatus status) override;
+  views::View* CreateDefaultView(LoginStatus status) override;
+  views::View* CreateDetailedView(LoginStatus status) override;
   void DestroyTrayView() override {}
   void DestroyDefaultView() override;
   void DestroyDetailedView() override {}
-  void UpdateAfterLoginStatusChange(user::LoginStatus status) override {}
+  void UpdateAfterLoginStatusChange(LoginStatus status) override {}
   void UpdateAfterShelfAlignmentChange(ShelfAlignment alignment) override {}
 
   // True if the separator gets shown.