chrome/browser/chrome_browser_field_trials_desktop.cc

   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
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/chrome_browser_field_trials_desktop.h"
   6
   7 #include <string>
   8
   9 #include "base/command_line.h"
  10 #include "base/metrics/field_trial.h"
  11 #include "chrome/browser/auto_launch_trial.h"
  12 #include "chrome/browser/google/google_brand.h"
  13 #include "chrome/browser/prerender/prerender_field_trial.h"
  14 #include "chrome/common/chrome_switches.h"
  15 #include "chrome/common/variations/variations_util.h"
  16 #include "components/variations/variations_associated_data.h"
  17
  18 namespace chrome {
  19
  20 namespace {
  21
  22 void AutoLaunchChromeFieldTrial() {
  23   std::string brand;
  24   google_brand::GetBrand(&brand);
  25
  26   // Create a 100% field trial based on the brand code.
  27   if (auto_launch_trial::IsInExperimentGroup(brand)) {
  28     base::FieldTrialList::CreateFieldTrial(kAutoLaunchTrialName,
  29                                            kAutoLaunchTrialAutoLaunchGroup);
  30   } else if (auto_launch_trial::IsInControlGroup(brand)) {
  31     base::FieldTrialList::CreateFieldTrial(kAutoLaunchTrialName,
  32                                            kAutoLaunchTrialControlGroup);
  33   }
  34 }
  35
  36 void SetupLightSpeedTrials() {
  37   if (!variations::GetVariationParamValue("LightSpeed", "NoGpu").empty()) {
  38     base::CommandLine::ForCurrentProcess()->AppendSwitch(
  39         switches::kDisableGpu);
  40   }
  41 }
  42
  43 }  // namespace
  44
  45 void SetupDesktopFieldTrials(const base::CommandLine& parsed_command_line) {
  46   prerender::ConfigurePrerender(parsed_command_line);
  47   AutoLaunchChromeFieldTrial();
  48   SetupLightSpeedTrials();
  49 }
  50
  51 }  // namespace chrome