Serialize Google Update state as part of the recovery component update checks.

components/component_updater/updater_state_win.h

+// Copyright (c) 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 COMPONENTS_COMPONENT_UPDATER_UPDATER_STATE_WIN_H_
+#define COMPONENTS_COMPONENT_UPDATER_UPDATER_STATE_WIN_H_
+
+#include <memory>
+#include <string>
+
+#include "base/gtest_prod_util.h"
+#include "base/time/time.h"
+#include "base/version.h"
+#include "components/update_client/update_client.h"
+
+namespace component_updater {
+
+// TODO(sorin): implement this in terms of
+// chrome/installer/util/google_update_settings (crbug.com/615187).
+class UpdaterState {
+ public:
+  static std::unique_ptr<UpdaterState> Create(bool is_machine);
+
+  update_client::InstallerAttributes MakeInstallerAttributes() const;
+
+ private:
+  FRIEND_TEST_ALL_PREFIXES(UpdaterStateTest, MakeInstallerAttributes);
+
+  explicit UpdaterState(bool is_machine);
+
+  // This function is best-effort. It updates the class members with
+  // the relevant values that could be retrieved.
+  void ReadState();
+
+  static base::Version GetGoogleUpdateVersion(bool is_machine);
+  static bool IsAutoupdateCheckEnabled();
+  static bool IsJoinedToDomain();
+  static base::Time GetGoogleUpdateLastStartedAU(bool is_machine);
+  static base::Time GetGoogleUpdateLastChecked(bool is_machine);
+  static base::Time GetGoogleUpdateTimeValue(bool is_machine,
+                                             const wchar_t* value_name);
+  static int GetChromeUpdatePolicy();
+
+  static std::string NormalizeTimeDelta(const base::TimeDelta& delta);
+
+  bool is_machine_;
+  base::Version google_update_version_;
+  base::Time last_autoupdate_started_;
+  base::Time last_checked_;
+  bool is_joined_to_domain_ = false;
+  bool is_autoupdate_check_enabled_ = false;
+  int chrome_update_policy_ = 0;
+};
+
+}  // namespace component_updater
+
+#endif  // COMPONENTS_COMPONENT_UPDATER_UPDATER_STATE_WIN_H_