chromeos: Move device shutdown handling out of chrome into ash

chrome/browser/chromeos/settings/shutdown_policy_forwarder.cc

+// 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.
+
+#include "chrome/browser/chromeos/settings/shutdown_policy_forwarder.h"
+
+#include "ash/public/interfaces/shutdown.mojom.h"
+#include "chrome/browser/chromeos/settings/cros_settings.h"
+#include "chrome/browser/ui/ash/ash_util.h"
+#include "content/public/common/service_manager_connection.h"
+#include "services/service_manager/public/cpp/connector.h"
+
+namespace chromeos {
+
+ShutdownPolicyForwarder::ShutdownPolicyForwarder()
+    : shutdown_policy_handler_(CrosSettings::Get(), this) {
+  // Request the initial setting.
+  shutdown_policy_handler_.NotifyDelegateWithShutdownPolicy();
+}
+
+ShutdownPolicyForwarder::~ShutdownPolicyForwarder() {}
+
+void ShutdownPolicyForwarder::OnShutdownPolicyChanged(bool reboot_on_shutdown) {
+  service_manager::Connector* connector =
+      content::ServiceManagerConnection::GetForProcess()->GetConnector();
+
+  // Shutdown policy changes rarely so don't bother caching the connection.
+  ash::mojom::ShutdownControllerPtr shutdown_controller;
+
+  // Under mash the ShutdownController interface is in the ash process. In
+  // classic ash the browser provides it to itself.
+  if (chrome::IsRunningInMash()) {
+    connector->ConnectToInterface("service:ash", &shutdown_controller);
+  } else {
+    connector->ConnectToInterface("service:content_browser",
+                                  &shutdown_controller);
+  }
+
+  // Forward the setting to ash.
+  shutdown_controller->SetRebootOnShutdown(reboot_on_shutdown);
+}
+
+}  // namespace chromeos