1// Copyright (c) 2013 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#ifndef CHROME_BROWSER_METRICS_VARIATIONS_VARIATIONS_REQUEST_SCHEDULER_MOBILE_H_ 6#define CHROME_BROWSER_METRICS_VARIATIONS_VARIATIONS_REQUEST_SCHEDULER_MOBILE_H_ 7 8#include "base/bind.h" 9#include "chrome/browser/metrics/variations/variations_request_scheduler.h" 10 11class PrefService; 12 13namespace chrome_variations { 14 15// A specialized VariationsRequestScheduler that manages request cycles for 16// VariationsService on mobile platforms. 17class VariationsRequestSchedulerMobile : public VariationsRequestScheduler { 18 public: 19 // |task} is the closure to call when the scheduler deems ready. |local_state| 20 // is the PrefService that contains the time of the last fetch. 21 explicit VariationsRequestSchedulerMobile(const base::Closure& task, 22 PrefService* local_state); 23 virtual ~VariationsRequestSchedulerMobile(); 24 25 // Base class overrides. 26 virtual void Start() OVERRIDE; 27 virtual void Reset() OVERRIDE; 28 virtual void OnAppEnterForeground() OVERRIDE; 29 30 private: 31 FRIEND_TEST_ALL_PREFIXES(VariationsRequestSchedulerMobileTest, 32 OnAppEnterForegroundNoRun); 33 FRIEND_TEST_ALL_PREFIXES(VariationsRequestSchedulerMobileTest, 34 OnAppEnterForegroundRun); 35 FRIEND_TEST_ALL_PREFIXES(VariationsRequestSchedulerMobileTest, 36 OnAppEnterForegroundOnStartup); 37 38 // The local state instance that provides the last fetch time. 39 PrefService* local_state_; 40 41 // Timer used for triggering a delayed fetch for ScheduleFetch(). 42 base::OneShotTimer<VariationsRequestSchedulerMobile> schedule_fetch_timer_; 43 44 // The time the last seed request was initiated. 45 base::Time last_request_time_; 46 47 DISALLOW_COPY_AND_ASSIGN(VariationsRequestSchedulerMobile); 48}; 49 50} // namespace chrome_variations 51 52#endif // CHROME_BROWSER_METRICS_VARIATIONS_VARIATIONS_REQUEST_SCHEDULER_MOBILE_H_ 53