MD Settings: Add dedicated C++ handler for restart/relaunch/powerwash.

chrome/browser/ui/webui/settings/browser_lifetime_handler.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/ui/webui/settings/browser_lifetime_handler.h"
+
+#include "base/bind.h"
+#include "base/bind_helpers.h"
+#include "chrome/browser/lifetime/application_lifetime.h"
+
+#if defined(OS_CHROMEOS)
+#include "chrome/browser/browser_process.h"
+#include "chrome/browser/browser_process_platform_part.h"
+#include "chrome/browser/chromeos/policy/browser_policy_connector_chromeos.h"
+#include "chrome/common/pref_names.h"
+#include "components/prefs/pref_service.h"
+#include "components/user_manager/user_manager.h"
+#endif  // defined(OS_CHROMEOS)
+
+namespace settings {
+
+BrowserLifetimeHandler::BrowserLifetimeHandler() {}
+
+BrowserLifetimeHandler::~BrowserLifetimeHandler() {}
+
+void BrowserLifetimeHandler::RegisterMessages() {
+  web_ui()->RegisterMessageCallback("restart",
+      base::Bind(&BrowserLifetimeHandler::HandleRestart,
+                 base::Unretained(this)));
+  web_ui()->RegisterMessageCallback("relaunch",
+      base::Bind(&BrowserLifetimeHandler::HandleRelaunch,
+                 base::Unretained(this)));
+#if defined(OS_CHROMEOS)
+  web_ui()->RegisterMessageCallback("signOutAndRestart",
+      base::Bind(&BrowserLifetimeHandler::HandleSignOutAndRestart,
+                 base::Unretained(this)));
+  web_ui()->RegisterMessageCallback("factoryReset",
+      base::Bind(&BrowserLifetimeHandler::HandleFactoryReset,
+                 base::Unretained(this)));
+#endif  // defined(OS_CHROMEOS)
+}
+
+void BrowserLifetimeHandler::HandleRestart(
+    const base::ListValue* args) {
+  chrome::AttemptRestart();
+}
+
+void BrowserLifetimeHandler::HandleRelaunch(
+    const base::ListValue* args) {
+  chrome::AttemptRelaunch();
+}
+
+#if defined(OS_CHROMEOS)
+void BrowserLifetimeHandler::HandleSignOutAndRestart(
+    const base::ListValue* args) {
+  chrome::AttemptUserExit();
+}
+
+void BrowserLifetimeHandler::HandleFactoryReset(
+    const base::ListValue* args) {
+  policy::BrowserPolicyConnectorChromeOS* connector =
+      g_browser_process->platform_part()->browser_policy_connector_chromeos();
+  bool allow_powerwash = !connector->IsEnterpriseManaged() &&
+      !user_manager::UserManager::Get()->IsLoggedInAsGuest() &&
+      !user_manager::UserManager::Get()->IsLoggedInAsSupervisedUser();
+
+  if (!allow_powerwash)
+    return;
+
+  PrefService* prefs = g_browser_process->local_state();
+  prefs->SetBoolean(prefs::kFactoryResetRequested, true);
+  prefs->CommitPendingWrite();
+
+  // Perform sign out. Current chrome process will then terminate, new one will
+  // be launched (as if it was a restart).
+  chrome::AttemptRelaunch();
+}
+#endif  // defined(OS_CHROMEOS)
+
+}  // namespace settings