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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/chrome_browser_field_trials.h"
#include <string>
#include "base/command_line.h"
#include "base/metrics/field_trial.h"
#include "base/prefs/pref_service.h"
#include "base/strings/string_util.h"
#include "base/time/time.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/chrome_version_info.h"
#include "chrome/common/variations/uniformity_field_trials.h"
#include "components/metrics/metrics_pref_names.h"
#include "components/omnibox/omnibox_field_trial.h"
#if defined(OS_ANDROID) || defined(OS_IOS)
#include "chrome/browser/chrome_browser_field_trials_mobile.h"
#else
#include "chrome/browser/chrome_browser_field_trials_desktop.h"
#endif
ChromeBrowserFieldTrials::ChromeBrowserFieldTrials(
const CommandLine& parsed_command_line)
: parsed_command_line_(parsed_command_line) {
}
ChromeBrowserFieldTrials::~ChromeBrowserFieldTrials() {
}
void ChromeBrowserFieldTrials::SetupFieldTrials(const base::Time& install_time,
PrefService* local_state) {
DCHECK(!install_time.is_null());
// Field trials that are shared by all platforms.
chrome_variations::SetupUniformityFieldTrials(install_time);
InstantiateDynamicTrials();
#if defined(OS_ANDROID) || defined(OS_IOS)
chrome::SetupMobileFieldTrials(parsed_command_line_);
#else
chrome::SetupDesktopFieldTrials(
parsed_command_line_, local_state);
#endif
}
void ChromeBrowserFieldTrials::InstantiateDynamicTrials() {
// Call |FindValue()| on the trials below, which may come from the server, to
// ensure they get marked as "used" for the purposes of data reporting.
base::FieldTrialList::FindValue("UMA-Dynamic-Binary-Uniformity-Trial");
base::FieldTrialList::FindValue("UMA-Dynamic-Uniformity-Trial");
base::FieldTrialList::FindValue("InstantDummy");
base::FieldTrialList::FindValue("InstantChannel");
base::FieldTrialList::FindValue("Test0PercentDefault");
// The following trials are used from renderer process.
// Mark here so they will be sync-ed.
base::FieldTrialList::FindValue("CLD1VsCLD2");
base::FieldTrialList::FindValue("MouseEventPreconnect");
base::FieldTrialList::FindValue("UnauthorizedPluginInfoBar");
// Activate the autocomplete dynamic field trials.
OmniboxFieldTrial::ActivateDynamicTrials();
}
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