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

ash/system/date/tray_date.h

Index: ash/system/date/tray_date.h
diff --git a/ash/system/date/tray_date.h b/ash/system/date/tray_date.h
index f3bf4b44a66433a8a3666ae73686c029deae75ce..9a8c00529f35a2e85af8800780d14576adb9abb2 100644
--- a/ash/system/date/tray_date.h
+++ b/ash/system/date/tray_date.h
@@ -47,17 +47,17 @@ class ASH_EXPORT TrayDate : public SystemTrayItem, public ClockObserver {
 
   const tray::TimeView* GetTimeTrayForTesting() const;
   const DateDefaultView* GetDefaultViewForTesting() const;
-  views::View* CreateDefaultViewForTesting(user::LoginStatus status);
+  views::View* CreateDefaultViewForTesting(LoginStatus status);
 
  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;
 
   // Overridden from ClockObserver.
@@ -70,7 +70,7 @@ class ASH_EXPORT TrayDate : public SystemTrayItem, public ClockObserver {
 
   tray::TimeView* time_tray_;
   DateDefaultView* default_view_;
-  user::LoginStatus login_status_;
+  LoginStatus login_status_;
 
 #if defined(OS_CHROMEOS)
   std::unique_ptr<SystemClockObserver> system_clock_observer_;