Delete the auto-launch trial.

chrome/browser/auto_launch_trial.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_AUTO_LAUNCH_TRIAL_H_
-#define CHROME_BROWSER_AUTO_LAUNCH_TRIAL_H_
-
-#include <string>
-
-// Strings used with the "auto launching Chrome at computer startup" trial.  If
-// the field trial is running then...
-// base::FieldTrialList::TrialExists(kAutoLaunchTrial_Name) returns true.
-//
-// The field trial consists of two groups of users: those that auto-launch
-// Chrome at startup and those that don't.  The group_name() of the field
-// trial object is used to determine the group that the user belongs to.
-//
-// The field trial is setup in ChromeBrowserMainParts::AutoLaunchFieldTrial()
-// based on the user's brand code:
-//
-//   - brand RNGP auto launches Chrome on computer startup.
-//   - brand RNGQ does not.
-//   - any other brand code does whatever comes natural to it.
-
-extern const char kAutoLaunchTrialName[];
-extern const char kAutoLaunchTrialAutoLaunchGroup[];
-extern const char kAutoLaunchTrialControlGroup[];
-
-namespace auto_launch_trial {
-
-// The possible responses for the auto-launch infobar.
-enum InfobarMetricResponse {
-  INFOBAR_CUT_IT_OUT = 0,
-  INFOBAR_OK,
-  INFOBAR_IGNORE,
-};
-
-// Whether the auto-launch experiment is active and the user is part of it.
-bool IsInAutoLaunchGroup();
-
-// Whether the brand is part of the experiment group for auto-launch.
-bool IsInExperimentGroup(const std::string& brand_code);
-
-// Whether the brand is part of the control group for auto-launch.
-bool IsInControlGroup(const std::string& brand_code);
-
-}  // namespace auto_launch_trial
-
-#endif  // CHROME_BROWSER_AUTO_LAUNCH_TRIAL_H_