Pulling user experiment code from BrowserDistribution to a new class.

chrome/installer/util/browser_distribution.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.
 //
 // This file defines a class that contains various method related to branding.
 // It provides only default implementations of these methods. Usually to add
 // specific branding, we will need to extend this class with a custom
 // implementation.
 
 #include "chrome/installer/util/browser_distribution.h"
@@ skipping 244 matching lines @@
 
 bool BrowserDistribution::AppHostIsSupported() {
   return false;
 }
 
 void BrowserDistribution::UpdateInstallStatus(bool system_install,
     installer::ArchiveType archive_type,
     installer::InstallStatus install_status) {
 }
 
-bool BrowserDistribution::GetExperimentDetails(
-    UserExperiment* experiment, int flavor) {
-  return false;
-}
-
-void BrowserDistribution::LaunchUserExperiment(
-    const base::FilePath& setup_path, installer::InstallStatus status,
-    const Version& version, const installer::Product& product,
-    bool system_level) {
-}
-
 bool BrowserDistribution::ShouldSetExperimentLabels() {
   return false;
 }
-
-void BrowserDistribution::InactiveUserToastExperiment(int flavor,
-    const string16& experiment_group,
-    const installer::Product& installation,
-    const base::FilePath& application_path) {
-}