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| 1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 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/chrome_browser_field_trials_desktop.h" | 5 #include "chrome/browser/chrome_browser_field_trials_desktop.h" |
| 6 | 6 |
| 7 #include <string> | 7 #include <string> |
| 8 | 8 |
| 9 #include "base/command_line.h" | 9 #include "base/command_line.h" |
| 10 #include "base/environment.h" | 10 #include "base/environment.h" |
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| 60 } | 60 } |
| 61 | 61 |
| 62 void DisableShowProfileSwitcherTrialIfNecessary() { | 62 void DisableShowProfileSwitcherTrialIfNecessary() { |
| 63 // This trial is created by the VariationsService, but it needs to be disabled | 63 // This trial is created by the VariationsService, but it needs to be disabled |
| 64 // if multi-profiles isn't enabled. | 64 // if multi-profiles isn't enabled. |
| 65 base::FieldTrial* trial = base::FieldTrialList::Find("ShowProfileSwitcher"); | 65 base::FieldTrial* trial = base::FieldTrialList::Find("ShowProfileSwitcher"); |
| 66 if (trial && !profiles::IsMultipleProfilesEnabled()) | 66 if (trial && !profiles::IsMultipleProfilesEnabled()) |
| 67 trial->Disable(); | 67 trial->Disable(); |
| 68 } | 68 } |
| 69 | 69 |
| 70 void SetupLowLatencyFlashAudioFieldTrial() { | |
| 71 scoped_refptr<base::FieldTrial> trial( | |
| 72 base::FieldTrialList::FactoryGetFieldTrial( | |
| 73 content::kLowLatencyFlashAudioFieldTrialName, 100, "Standard", | |
| 74 2013, 9, 1, base::FieldTrial::SESSION_RANDOMIZED, NULL)); | |
| 75 | |
| 76 // Trial is enabled for dev / beta / canary users only. | |
| 77 if (chrome::VersionInfo::GetChannel() != chrome::VersionInfo::CHANNEL_STABLE) | |
| 78 trial->AppendGroup(content::kLowLatencyFlashAudioFieldTrialEnabledName, 25); | |
| 79 } | |
| 80 | |
| 81 void SetupPreReadFieldTrial() { | 70 void SetupPreReadFieldTrial() { |
| 82 // The chrome executable will have set (or not) an environment variable with | 71 // The chrome executable will have set (or not) an environment variable with |
| 83 // the group name into which this client belongs. | 72 // the group name into which this client belongs. |
| 84 std::string group; | 73 std::string group; |
| 85 scoped_ptr<base::Environment> env(base::Environment::Create()); | 74 scoped_ptr<base::Environment> env(base::Environment::Create()); |
| 86 if (!env->GetVar(chrome::kPreReadEnvironmentVariable, &group) || | 75 if (!env->GetVar(chrome::kPreReadEnvironmentVariable, &group) || |
| 87 group.empty()) { | 76 group.empty()) { |
| 88 return; | 77 return; |
| 89 } | 78 } |
| 90 | 79 |
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| 126 | 115 |
| 127 void SetupDesktopFieldTrials(const CommandLine& parsed_command_line, | 116 void SetupDesktopFieldTrials(const CommandLine& parsed_command_line, |
| 128 const base::Time& install_time, | 117 const base::Time& install_time, |
| 129 PrefService* local_state) { | 118 PrefService* local_state) { |
| 130 prerender::ConfigurePrerender(parsed_command_line); | 119 prerender::ConfigurePrerender(parsed_command_line); |
| 131 AutoLaunchChromeFieldTrial(); | 120 AutoLaunchChromeFieldTrial(); |
| 132 OmniboxFieldTrial::ActivateStaticTrials(); | 121 OmniboxFieldTrial::ActivateStaticTrials(); |
| 133 SetupInfiniteCacheFieldTrial(); | 122 SetupInfiniteCacheFieldTrial(); |
| 134 DisableShowProfileSwitcherTrialIfNecessary(); | 123 DisableShowProfileSwitcherTrialIfNecessary(); |
| 135 SetupShowAppLauncherPromoFieldTrial(local_state); | 124 SetupShowAppLauncherPromoFieldTrial(local_state); |
| 136 SetupLowLatencyFlashAudioFieldTrial(); | |
| 137 SetupPreReadFieldTrial(); | 125 SetupPreReadFieldTrial(); |
| 138 } | 126 } |
| 139 | 127 |
| 140 } // namespace chrome | 128 } // namespace chrome |
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