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

ash/system/user/user_view.h

Index: ash/system/user/user_view.h
diff --git a/ash/system/user/user_view.h b/ash/system/user/user_view.h
index f144814a4f2e0eea700e8f5e47dd882956af00d7..539ac1d8d762860a54629d89f596cd9878051f0e 100644
--- a/ash/system/user/user_view.h
+++ b/ash/system/user/user_view.h
@@ -40,9 +40,7 @@ class UserView : public views::View,
                  public views::MouseWatcherListener,
                  public views::FocusChangeListener {
  public:
-  UserView(SystemTrayItem* owner,
-           ash::user::LoginStatus login,
-           UserIndex index);
+  UserView(SystemTrayItem* owner, LoginStatus login, UserIndex index);
   ~UserView() override;
 
   // Overridden from MouseWatcherListener:
@@ -66,8 +64,8 @@ class UserView : public views::View,
   void OnWillChangeFocus(View* focused_before, View* focused_now) override;
   void OnDidChangeFocus(View* focused_before, View* focused_now) override;
 
-  void AddLogoutButton(user::LoginStatus login);
-  void AddUserCard(user::LoginStatus login);
+  void AddLogoutButton(LoginStatus login);
+  void AddUserCard(LoginStatus login);
 
   // Create the menu option to add another user. If |disabled| is set the user
   // cannot actively click on the item.