Implement an AutoLaunch experiment for Chrome for certain brand codes.

chrome/browser/chrome_browser_main.h

 // Copyright (c) 2011 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.
 
 #ifndef CHROME_BROWSER_CHROME_BROWSER_MAIN_H_
 #define CHROME_BROWSER_CHROME_BROWSER_MAIN_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/gtest_prod_util.h"
@@ skipping 95 matching lines @@
   void ConnectBackupJobsFieldTrial();
 
   // Field trial to see what disabling DNS pre-resolution does to
   // latency of page loads.
   void PredictorFieldTrial();
 
   // Field trial to see what effect installing defaults in the NTP apps pane
   // has on retention and general apps/webstore usage.
   void DefaultAppsFieldTrial();
 
+  // A field trial to see what effects launching Chrome automatically on
+  // computer startup has on retention and usage of Chrome.
+  void AutoLaunchChromeFieldTrial();
+
   // Methods for |SetupMetricsAndFieldTrials()| --------------------------------
 
   // Constructs metrics service and does related initialization, including
   // creation of field trials. Call only after labs have been converted to
   // switches.
   MetricsService* SetupMetricsAndFieldTrials(PrefService* local_state);
 
   static MetricsService* InitializeMetrics(
       const CommandLine& parsed_command_line,
       const PrefService* local_state);
@@ skipping 83 matching lines @@
 // Records the time from our process' startup to the present time in
 // the UMA histogram |metric_name|.
 void RecordBrowserStartupTime();
 
 // Records a time value to an UMA histogram in the context of the
 // PreReadExperiment field-trial. This also reports to the appropriate
 // sub-histogram (_PreRead(Enabled|Disabled)).
 void RecordPreReadExperimentTime(const char* name, base::TimeDelta time);
 
 #endif  // CHROME_BROWSER_CHROME_BROWSER_MAIN_H_