Signed settings refactoring: Proper caching and more tests.

chrome/browser/chromeos/signed_settings_migration_helper.cc

+// Copyright (c) 2011 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/signed_settings_migration_helper.h"
+
+#include "base/bind.h"
+#include "base/values.h"
+#include "chrome/browser/chromeos/cros_settings.h"
+#include "chrome/common/chrome_notification_types.h"
+#include "content/public/browser/notification_service.h"
+
+namespace chromeos {
+
+SignedSettingsMigrationHelper::SignedSettingsMigrationHelper() {
+  registrar_.Add(this, chrome::NOTIFICATION_OWNERSHIP_CHECKED,
+                 content::NotificationService::AllSources());
+}
+
+SignedSettingsMigrationHelper::~SignedSettingsMigrationHelper() {
+  registrar_.RemoveAll();
+  migration_values_.Clear();
+}
+
+void SignedSettingsMigrationHelper::AddMigrationValue(const std::string& path,
+                                                      base::Value* value) {
+  migration_values_.SetValue(path, value);
+}
+
+void SignedSettingsMigrationHelper::MigrateValues(void) {
+  ownership_checker_.reset(new OwnershipStatusChecker(
+      base::Bind(&SignedSettingsMigrationHelper::DoMigrateValues,
+                 base::Unretained(this))));
+}
+
+// NotificationObserver overrides:
+void SignedSettingsMigrationHelper::Observe(
+    int type,
+    const content::NotificationSource& source,
+    const content::NotificationDetails& details) {
+  if (type == chrome::NOTIFICATION_OWNERSHIP_CHECKED)
+    MigrateValues();
+}
+
+void SignedSettingsMigrationHelper::DoMigrateValues(
+    OwnershipService::Status status,
+    bool current_user_is_owner) {
+  ownership_checker_.reset(NULL);
+
+  // We can call StartStorePropertyOp in two cases - either if the owner is
+  // currently logged in and the policy can be updated immediately or if there
+  // is no owner yet in which case the value will be temporarily stored in the
+  // SignedSettingsCache until the device is owned. If none of these
+  // cases is met then we will wait for user change notification and retry.
+  if (current_user_is_owner || status != OwnershipService::OWNERSHIP_TAKEN) {
+    std::map<std::string, base::Value*>::const_iterator i;
+    for (i = migration_values_.begin(); i != migration_values_.end(); ++i) {
+      // Queue all values for storing.
+      CrosSettings::Get()->Set(i->first, *i->second);
+    }
+    migration_values_.Clear();
+  }
+}
+
+}  // namespace chromeos
+