Setup field trial for one-click signin inforbar.

chrome/browser/chrome_browser_field_trials.cc

 // 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/string_number_conversions.h"
 #include "base/string_util.h"
 #include "base/stringprintf.h"
 #include "base/sys_string_conversions.h"
 #include "base/utf_string_conversions.h"
 #include "chrome/browser/auto_launch_trial.h"
 #include "chrome/browser/autocomplete/autocomplete_field_trial.h"
 #include "chrome/browser/extensions/default_apps_trial.h"
 #include "chrome/browser/google/google_util.h"
 #include "chrome/browser/gpu_util.h"
 #include "chrome/browser/instant/instant_field_trials.h"
 #include "chrome/browser/net/predictor.h"
 #include "chrome/browser/prerender/prerender_field_trial.h"
 #include "chrome/browser/safe_browsing/safe_browsing_blocking_page.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/metrics/variations/variations_util.h"
 #include "net/http/http_stream_factory.h"
 #include "net/socket/client_socket_pool_base.h"
 #include "net/socket/client_socket_pool_manager.h"
 #include "net/spdy/spdy_session.h"
 #include "net/spdy/spdy_session_pool.h"
 #include "ui/base/layout.h"
 
@@ skipping 86 matching lines @@
   WarmConnectionFieldTrial();
   PredictorFieldTrial();
   DefaultAppsFieldTrial();
   AutoLaunchChromeFieldTrial();
   gpu_util::InitializeCompositingFieldTrial();
   SetupUniformityFieldTrials();
   AutocompleteFieldTrial::Activate();
   DisableNewTabFieldTrialIfNecesssary();
   SetUpSafeBrowsingInterstitialFieldTrial();
   SetUpChannelIDFieldTrial();
+#if defined(ENABLE_ONE_CLICK_SIGNIN)
+  OneClickSigninHelper::InitializeFieldTrial();
+#endif
 }
 
 // This is an A/B test for the maximum number of persistent connections per
 // host. Currently Chrome, Firefox, and IE8 have this value set at 6. Safari
 // uses 4, and Fasterfox (a plugin for Firefox that supposedly configures it to
 // run faster) uses 8. We would like to see how much of an effect this value has
 // on browsing. Too large a value might cause us to run into SYN flood detection
 // mechanisms.
 void ChromeBrowserFieldTrials::ConnectionFieldTrial() {
   const base::FieldTrial::Probability kConnectDivisor = 100;
@@ skipping 411 matching lines @@
     const base::FieldTrial::Probability kEnableProbability = 10;
     scoped_refptr<base::FieldTrial> trial =
         base::FieldTrialList::FactoryGetFieldTrial(
             "ChannelID", kDivisor, "disable", 2012, 11, 5, NULL);
     trial->UseOneTimeRandomization();
     int enable_group = trial->AppendGroup("enable", kEnableProbability);
     if (trial->group() == enable_group)
       net::SSLConfigService::EnableChannelIDTrial();
   }
 }