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

ash/system/chromeos/screen_security/screen_capture_tray_item.cc

Index: ash/system/chromeos/screen_security/screen_capture_tray_item.cc
diff --git a/ash/system/chromeos/screen_security/screen_capture_tray_item.cc b/ash/system/chromeos/screen_security/screen_capture_tray_item.cc
index 0e234f88b45f8022a6cc97c583667b0fa6c6b4a1..e7735dad66343c5175846faee64e22dda0cede96 100644
--- a/ash/system/chromeos/screen_security/screen_capture_tray_item.cc
+++ b/ash/system/chromeos/screen_security/screen_capture_tray_item.cc
@@ -37,14 +37,13 @@ ScreenCaptureTrayItem::~ScreenCaptureTrayItem() {
       RemoveScreenCaptureObserver(this);
 }
 
-views::View* ScreenCaptureTrayItem::CreateTrayView(user::LoginStatus status) {
+views::View* ScreenCaptureTrayItem::CreateTrayView(LoginStatus status) {
   set_tray_view(
       new tray::ScreenTrayView(this, IDR_AURA_UBER_TRAY_SCREENSHARE));
   return tray_view();
 }
 
-views::View* ScreenCaptureTrayItem::CreateDefaultView(
-    user::LoginStatus status) {
+views::View* ScreenCaptureTrayItem::CreateDefaultView(LoginStatus status) {
   set_default_view(new tray::ScreenStatusView(
       this,
       IDR_AURA_UBER_TRAY_SCREENSHARE_DARK,