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// Copyright 2013 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_desktop.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 "chrome/browser/auto_launch_trial.h"
#include "chrome/browser/google/google_brand.h"
#include "chrome/browser/prerender/prerender_field_trial.h"
#include "chrome/browser/profiles/profiles_state.h"
#include "chrome/browser/safe_browsing/safe_browsing_blocking_page.h"
#include "chrome/browser/ui/app_list/app_list_util.h"
#include "chrome/browser/ui/sync/one_click_signin_helper.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/chrome_version_info.h"
#include "chrome/common/variations/variations_util.h"
#include "content/public/common/content_constants.h"
#include "net/spdy/spdy_session.h"
#include "ui/base/layout.h"
namespace chrome {
namespace {
void AutoLaunchChromeFieldTrial() {
std::string brand;
google_brand::GetBrand(&brand);
// Create a 100% field trial based on the brand code.
if (auto_launch_trial::IsInExperimentGroup(brand)) {
base::FieldTrialList::CreateFieldTrial(kAutoLaunchTrialName,
kAutoLaunchTrialAutoLaunchGroup);
} else if (auto_launch_trial::IsInControlGroup(brand)) {
base::FieldTrialList::CreateFieldTrial(kAutoLaunchTrialName,
kAutoLaunchTrialControlGroup);
}
}
void SetupInfiniteCacheFieldTrial() {
const base::FieldTrial::Probability kDivisor = 100;
base::FieldTrial::Probability infinite_cache_probability = 0;
scoped_refptr<base::FieldTrial> trial(
base::FieldTrialList::FactoryGetFieldTrial(
"InfiniteCache", kDivisor, "No", 2013, 12, 31,
base::FieldTrial::ONE_TIME_RANDOMIZED, NULL));
trial->AppendGroup("Yes", infinite_cache_probability);
trial->AppendGroup("Control", infinite_cache_probability);
}
void DisableShowProfileSwitcherTrialIfNecessary() {
// This trial is created by the VariationsService, but it needs to be disabled
// if multi-profiles isn't enabled.
base::FieldTrial* trial = base::FieldTrialList::Find("ShowProfileSwitcher");
if (trial && !profiles::IsMultipleProfilesEnabled())
trial->Disable();
}
} // namespace
void SetupDesktopFieldTrials(const base::CommandLine& parsed_command_line,
PrefService* local_state) {
prerender::ConfigurePrerender(parsed_command_line);
AutoLaunchChromeFieldTrial();
SetupInfiniteCacheFieldTrial();
DisableShowProfileSwitcherTrialIfNecessary();
SetupShowAppLauncherPromoFieldTrial(local_state);
}
} // namespace chrome
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