chrome/browser/chrome_browser_field_trials.cc

   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
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/chrome_browser_field_trials.h"
   6
   7 #include <string>
   8
   9 #include "base/command_line.h"
  10 #include "base/metrics/field_trial.h"
  11 #include "base/strings/string_util.h"
  12 #include "base/time/time.h"
  13 #include "chrome/common/chrome_switches.h"
  14 #include "chrome/common/chrome_version_info.h"
  15 #include "components/metrics/metrics_pref_names.h"
  16 #include "components/omnibox/browser/omnibox_field_trial.h"
  17
  18 #if defined(OS_ANDROID) || defined(OS_IOS)
  19 #include "chrome/browser/chrome_browser_field_trials_mobile.h"
  20 #else
  21 #include "chrome/browser/chrome_browser_field_trials_desktop.h"
  22 #endif
  23
  24 ChromeBrowserFieldTrials::ChromeBrowserFieldTrials(
  25     const base::CommandLine& parsed_command_line)
  26     : parsed_command_line_(parsed_command_line) {
  27 }
  28
  29 ChromeBrowserFieldTrials::~ChromeBrowserFieldTrials() {
  30 }
  31
  32 void ChromeBrowserFieldTrials::SetupFieldTrials() {
  33   // Field trials that are shared by all platforms.
  34   InstantiateDynamicTrials();
  35
  36 #if defined(OS_ANDROID) || defined(OS_IOS)
  37   chrome::SetupMobileFieldTrials(parsed_command_line_);
  38 #else
  39   chrome::SetupDesktopFieldTrials(parsed_command_line_);
  40 #endif
  41 }
  42
  43 void ChromeBrowserFieldTrials::InstantiateDynamicTrials() {
  44   // The following trials are used from renderer process.
  45   // Mark here so they will be sync-ed.
  46   base::FieldTrialList::FindValue("CLD1VsCLD2");
  47   base::FieldTrialList::FindValue("DisplayList2dCanvas");
  48   // Activate the autocomplete dynamic field trials.
  49   OmniboxFieldTrial::ActivateDynamicTrials();
  50 }