cros: Move ash/login/views to ash/login/ui

ash/login/views/lock_screen.h

Index: ash/login/views/lock_screen.h
diff --git a/ash/login/views/lock_screen.h b/ash/login/views/lock_screen.h
deleted file mode 100644
index 41a57058145ec0219697799e926fdd6706c30697..0000000000000000000000000000000000000000
--- a/ash/login/views/lock_screen.h
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright 2017 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef ASH_LOGIN_VIEWS_LOCK_SCREEN_H_
-#define ASH_LOGIN_VIEWS_LOCK_SCREEN_H_
-
-#include "ash/ash_export.h"
-
-namespace views {
-class Widget;
-}
-
-namespace ash {
-
-// Fills the given widget with the lock screen view and displays it.
-//
-// The lock screen communicates with the backend C++ via a mojo API.
-ASH_EXPORT void ShowLockScreenInWidget(views::Widget* widget);
-
-}  // namespace ash
-
-#endif  // ASH_LOGIN_VIEWS_LOCK_SCREEN_H_