Background service worker push message processing

chrome/browser/push_messaging/background_budget_service.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/push_messaging/background_budget_service.h"
+
+#include "base/callback.h"
+#include "base/strings/string_number_conversions.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/common/pref_names.h"
+#include "components/pref_registry/pref_registry_syncable.h"
+#include "components/prefs/pref_service.h"
+#include "components/prefs/scoped_user_pref_update.h"
+
+namespace chrome {
+
+namespace {
+
+std::string GetBudgetStringForServiceWorker(
+    Profile* profile,
+    const int64_t service_worker_registration_id) {
+  const base::DictionaryValue* map =
+      profile->GetPrefs()->GetDictionary(prefs::kBackgroundBudgetMap);
+  const std::string worker_id_string =
+      base::Int64ToString(service_worker_registration_id);
+
+  std::string map_value;
+  map->GetStringWithoutPathExpansion(worker_id_string, &map_value);
+  return map_value;
+}
+}  // namespace
+
+// static
+void BackgroundBudgetService::RegisterProfilePrefs(
+    user_prefs::PrefRegistrySyncable* registry) {
+  registry->RegisterDictionaryPref(prefs::kBackgroundBudgetMap);
+}
+
+// static
+void BackgroundBudgetService::GetBudget(Profile* profile,
+                                        int64_t service_worker_registration_id,
+                                        const StringCallback& callback) {
+  // Temporarily, this is just moving the old grace period code into the new
+  // service.
+  const std::string map_value =
+      GetBudgetStringForServiceWorker(profile, service_worker_registration_id);
+
+  callback.Run(map_value);
+}
+
+// static
+void BackgroundBudgetService::StoreBudget(
+    Profile* profile,
+    int64_t service_worker_registration_id,
+    const GURL& origin,
+    const std::string& notifications_shown,
+    const BudgetCallback& callback) {
+  DictionaryPrefUpdate update(profile->GetPrefs(), prefs::kBackgroundBudgetMap);
+  base::DictionaryValue* map = update.Get();
+  const std::string worker_id_string =
+      base::Int64ToString(service_worker_registration_id);
+  map->SetStringWithoutPathExpansion(worker_id_string, notifications_shown);
+}
+
+}  // namespace chrome