mash: remove the LockStateControllerDelegate.

ash/wm/shutdown_client_proxy.h

+// Copyright 2016 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_WM_SHUTDOWN_CLIENT_PROXY_H_
+#define ASH_WM_SHUTDOWN_CLIENT_PROXY_H_
+
+#include "ash/public/interfaces/shutdown.mojom.h"
+#include "base/macros.h"
+
+namespace service_manager {
+class Connector;
+}
+
+namespace ash {
+
+// A ShutdownClientProxy which lazily connects to an exported
+// mojom::ShutdownClient in "service:content_browser" on each use. This exists
+// so we can replace an instance of this class with a TestShutdownClient in
+// tests.
+class ShutdownClientProxy : public mojom::ShutdownClient {
+ public:
+  explicit ShutdownClientProxy(service_manager::Connector* connector);
+  ~ShutdownClientProxy() override;
+
+  // mojom::ShutdownClient:
+  void RequestShutdown() override;
+
+ private:
+  service_manager::Connector* connector_;
+
+  DISALLOW_COPY_AND_ASSIGN(ShutdownClientProxy);
+};
+
+}  // namespace ash
+
+#endif  // ASH_WM_SHUTDOWN_CLIENT_PROXY_H_