1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
// Copyright 2013 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_VARIATIONS_VARIATIONS_REQUEST_SCHEDULER_MOBILE_H_
#define COMPONENTS_VARIATIONS_VARIATIONS_REQUEST_SCHEDULER_MOBILE_H_
#include "base/component_export.h"
#include "base/functional/bind.h"
#include "base/gtest_prod_util.h"
#include "base/memory/raw_ptr.h"
#include "base/time/time.h"
#include "base/timer/timer.h"
#include "components/variations/variations_request_scheduler.h"
class PrefService;
namespace variations {
// A specialized VariationsRequestScheduler that manages request cycles for the
// VariationsService on mobile platforms.
class COMPONENT_EXPORT(VARIATIONS) VariationsRequestSchedulerMobile
: public VariationsRequestScheduler {
public:
// |task| is the closure to call when the scheduler deems ready. |local_state|
// is the PrefService that contains the time of the last fetch.
VariationsRequestSchedulerMobile(const base::RepeatingClosure& task,
PrefService* local_state);
VariationsRequestSchedulerMobile(const VariationsRequestSchedulerMobile&) =
delete;
VariationsRequestSchedulerMobile& operator=(
const VariationsRequestSchedulerMobile&) = delete;
~VariationsRequestSchedulerMobile() override;
// VariationsRequestScheduler:
void Start() override;
void Reset() override;
void OnAppEnterForeground() override;
private:
FRIEND_TEST_ALL_PREFIXES(VariationsRequestSchedulerMobileTest,
OnAppEnterForegroundNoRun);
FRIEND_TEST_ALL_PREFIXES(VariationsRequestSchedulerMobileTest,
OnAppEnterForegroundRun);
FRIEND_TEST_ALL_PREFIXES(VariationsRequestSchedulerMobileTest,
OnAppEnterForegroundOnStartup);
// Determines whether we should fetch a seed depending on how much time has
// passed since the last seed fetch. If the
// |kDisableVariationsSeedFetchThrottling| command line switch is present,
// this always returns true.
bool ShouldFetchSeed(base::Time last_fetch_time);
// The local state instance that provides the last fetch time.
raw_ptr<PrefService> local_state_;
// Timer used for triggering a delayed fetch for ScheduleFetch().
base::OneShotTimer schedule_fetch_timer_;
// The time the last seed request was initiated.
base::Time last_request_time_;
};
} // namespace variations
#endif // COMPONENTS_VARIATIONS_VARIATIONS_REQUEST_SCHEDULER_MOBILE_H_
|
