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Side by Side Diff: chrome/browser/metrics/field_trial_synchronizer.cc

Issue 10795060: Rename all of experiments_helper to variations_helper, including files, namespaces, and various fun… (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: rebase Created 8 years, 4 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2012 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/browser/metrics/field_trial_synchronizer.h" 5 #include "chrome/browser/metrics/field_trial_synchronizer.h"
6 6
7 #include "base/bind.h" 7 #include "base/bind.h"
8 #include "base/logging.h" 8 #include "base/logging.h"
9 #include "base/threading/thread.h" 9 #include "base/threading/thread.h"
10 #include "chrome/common/chrome_constants.h" 10 #include "chrome/common/chrome_constants.h"
11 #include "chrome/common/metrics/experiments_helper.h" 11 #include "chrome/common/metrics/variations_util.h"
12 #include "chrome/common/render_messages.h" 12 #include "chrome/common/render_messages.h"
13 #include "content/public/browser/browser_thread.h" 13 #include "content/public/browser/browser_thread.h"
14 #include "content/public/browser/render_process_host.h" 14 #include "content/public/browser/render_process_host.h"
15 15
16 using content::BrowserThread; 16 using content::BrowserThread;
17 17
18 namespace { 18 namespace {
19 19
20 // This singleton instance should be constructed during the single threaded 20 // This singleton instance should be constructed during the single threaded
21 // portion of main(). It initializes globals to provide support for all future 21 // portion of main(). It initializes globals to provide support for all future
22 // calls. This object is created on the UI thread, and it is destroyed after 22 // calls. This object is created on the UI thread, and it is destroyed after
23 // all the other threads have gone away. 23 // all the other threads have gone away.
24 FieldTrialSynchronizer* g_field_trial_synchronizer = NULL; 24 FieldTrialSynchronizer* g_field_trial_synchronizer = NULL;
25 25
26 } // namespace 26 } // namespace
27 27
28 FieldTrialSynchronizer::FieldTrialSynchronizer() { 28 FieldTrialSynchronizer::FieldTrialSynchronizer() {
29 DCHECK(g_field_trial_synchronizer == NULL); 29 DCHECK(g_field_trial_synchronizer == NULL);
30 g_field_trial_synchronizer = this; 30 g_field_trial_synchronizer = this;
31 base::FieldTrialList::AddObserver(this); 31 base::FieldTrialList::AddObserver(this);
32 32
33 experiments_helper::SetChildProcessLoggingExperimentList(); 33 chrome_variations::SetChildProcessLoggingVariationList();
34 } 34 }
35 35
36 void FieldTrialSynchronizer::NotifyAllRenderers( 36 void FieldTrialSynchronizer::NotifyAllRenderers(
37 const std::string& field_trial_name, 37 const std::string& field_trial_name,
38 const std::string& group_name) { 38 const std::string& group_name) {
39 // To iterate over RenderProcessHosts, or to send messages to the hosts, we 39 // To iterate over RenderProcessHosts, or to send messages to the hosts, we
40 // need to be on the UI thread. 40 // need to be on the UI thread.
41 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); 41 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
42 42
43 for (content::RenderProcessHost::iterator it( 43 for (content::RenderProcessHost::iterator it(
44 content::RenderProcessHost::AllHostsIterator()); 44 content::RenderProcessHost::AllHostsIterator());
45 !it.IsAtEnd(); it.Advance()) { 45 !it.IsAtEnd(); it.Advance()) {
46 it.GetCurrentValue()->Send( 46 it.GetCurrentValue()->Send(
47 new ChromeViewMsg_SetFieldTrialGroup(field_trial_name, group_name)); 47 new ChromeViewMsg_SetFieldTrialGroup(field_trial_name, group_name));
48 } 48 }
49 } 49 }
50 50
51 void FieldTrialSynchronizer::OnFieldTrialGroupFinalized( 51 void FieldTrialSynchronizer::OnFieldTrialGroupFinalized(
52 const std::string& field_trial_name, 52 const std::string& field_trial_name,
53 const std::string& group_name) { 53 const std::string& group_name) {
54 BrowserThread::PostTask( 54 BrowserThread::PostTask(
55 BrowserThread::UI, FROM_HERE, 55 BrowserThread::UI, FROM_HERE,
56 base::Bind(&FieldTrialSynchronizer::NotifyAllRenderers, 56 base::Bind(&FieldTrialSynchronizer::NotifyAllRenderers,
57 this, 57 this,
58 field_trial_name, 58 field_trial_name,
59 group_name)); 59 group_name));
60 experiments_helper::SetChildProcessLoggingExperimentList(); 60 chrome_variations::SetChildProcessLoggingVariationList();
61 } 61 }
62 62
63 FieldTrialSynchronizer::~FieldTrialSynchronizer() { 63 FieldTrialSynchronizer::~FieldTrialSynchronizer() {
64 base::FieldTrialList::RemoveObserver(this); 64 base::FieldTrialList::RemoveObserver(this);
65 g_field_trial_synchronizer = NULL; 65 g_field_trial_synchronizer = NULL;
66 } 66 }
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