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1 // Copyright (c) 2016 The Chromium Authors. All rights reserved. | |
Alexei Svitkine (slow)
2016/10/28 15:39:16
No (c)
lawrencewu
2016/10/28 16:54:29
Done.
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2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #include "base/metrics/field_trial_param_associator.h" | |
6 | |
7 namespace base { | |
8 | |
9 // static | |
10 FieldTrialParamAssociator* FieldTrialParamAssociator::GetInstance() { | |
11 return Singleton<FieldTrialParamAssociator, | |
12 LeakySingletonTraits<FieldTrialParamAssociator>>::get(); | |
13 } | |
14 | |
15 bool FieldTrialParamAssociator::AssociateFieldTrialParams( | |
16 const std::string& trial_name, | |
17 const std::string& group_name, | |
18 const FieldTrialParams& params) { | |
19 AutoLock scoped_lock(lock_); | |
20 | |
21 if (FieldTrialList::IsTrialActive(trial_name)) | |
22 return false; | |
23 | |
24 const FieldTrialKey key(trial_name, group_name); | |
25 if (ContainsKey(field_trial_params_, key)) | |
26 return false; | |
27 | |
28 field_trial_params_[key] = params; | |
29 return true; | |
30 } | |
31 | |
32 bool FieldTrialParamAssociator::GetFieldTrialParams( | |
33 const std::string& trial_name, | |
34 FieldTrialParams* params) { | |
35 AutoLock scoped_lock(lock_); | |
36 | |
37 const std::string group_name = FieldTrialList::FindFullName(trial_name); | |
38 const FieldTrialKey key(trial_name, group_name); | |
39 if (!ContainsKey(field_trial_params_, key)) | |
40 return false; | |
41 | |
42 *params = field_trial_params_[key]; | |
43 return true; | |
44 } | |
45 | |
46 void FieldTrialParamAssociator::ClearAllParamsForTesting() { | |
47 AutoLock scoped_lock(lock_); | |
48 field_trial_params_.clear(); | |
49 } | |
50 | |
51 } // namespace base | |
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