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Side by Side Diff: components/variations/child_process_field_trial_syncer.cc

Issue 2514593002: Field trial synchronization to PPAPI process. (Closed)
Patch Set: Created 4 years, 1 month ago
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1 // Copyright 2016 The Chromium Authors. All rights reserved. 1 // Copyright 2016 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "chrome/common/variations/child_process_field_trial_syncer.h" 5 #include "components/variations/child_process_field_trial_syncer.h"
6 6
7 #include <set> 7 #include <set>
8 #include <utility> 8 #include <utility>
9 9
10 #include "base/base_switches.h" 10 #include "base/base_switches.h"
11 #include "base/command_line.h" 11 #include "base/command_line.h"
12 #include "components/variations/variations_util.h" 12 #include "components/variations/variations_util.h"
13 13
14 namespace chrome_variations { 14 namespace variations {
15 15
16 ChildProcessFieldTrialSyncer::ChildProcessFieldTrialSyncer( 16 ChildProcessFieldTrialSyncer::ChildProcessFieldTrialSyncer(
17 base::FieldTrialList::Observer* observer) 17 base::FieldTrialList::Observer* observer)
18 : observer_(observer) {} 18 : observer_(observer) {}
19 19
20 ChildProcessFieldTrialSyncer::~ChildProcessFieldTrialSyncer() {} 20 ChildProcessFieldTrialSyncer::~ChildProcessFieldTrialSyncer() {}
21 21
22 void ChildProcessFieldTrialSyncer::InitFieldTrialObserving( 22 void ChildProcessFieldTrialSyncer::InitFieldTrialObserving(
23 const base::CommandLine& command_line) { 23 const base::CommandLine& command_line) {
24 // Set up initial set of crash dump data for field trials in this process. 24 // Set up initial set of crash dump data for field trials in this process.
25 variations::SetVariationListCrashKeys(); 25 SetVariationListCrashKeys();
26 26
27 // Listen for field trial activations to report them to the browser. 27 // Listen for field trial activations to report them to the browser.
28 base::FieldTrialList::AddObserver(observer_); 28 base::FieldTrialList::AddObserver(observer_);
29 29
30 // Some field trials may have been activated before this point. Notify the 30 // Some field trials may have been activated before this point. Notify the
31 // browser of these activations now. To detect these, take the set difference 31 // browser of these activations now. To detect these, take the set difference
32 // of currently active trials with the initially active trials. 32 // of currently active trials with the initially active trials.
33 base::FieldTrial::ActiveGroups initially_active_trials; 33 base::FieldTrial::ActiveGroups initially_active_trials;
34 base::FieldTrialList::GetActiveFieldTrialGroupsFromString( 34 base::FieldTrialList::GetActiveFieldTrialGroupsFromString(
35 command_line.GetSwitchValueASCII(switches::kForceFieldTrials), 35 command_line.GetSwitchValueASCII(switches::kForceFieldTrials),
(...skipping 12 matching lines...) Expand all
48 } 48 }
49 49
50 void ChildProcessFieldTrialSyncer::OnSetFieldTrialGroup( 50 void ChildProcessFieldTrialSyncer::OnSetFieldTrialGroup(
51 const std::string& trial_name, 51 const std::string& trial_name,
52 const std::string& group_name) { 52 const std::string& group_name) {
53 base::FieldTrial* trial = 53 base::FieldTrial* trial =
54 base::FieldTrialList::CreateFieldTrial(trial_name, group_name); 54 base::FieldTrialList::CreateFieldTrial(trial_name, group_name);
55 // Ensure the trial is marked as "used" by calling group() on it if it is 55 // Ensure the trial is marked as "used" by calling group() on it if it is
56 // marked as activated. 56 // marked as activated.
57 trial->group(); 57 trial->group();
58 variations::SetVariationListCrashKeys(); 58 SetVariationListCrashKeys();
59 } 59 }
60 60
61 } // namespace chrome_variations 61 } // namespace variations
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