Pulling user experiment code from BrowserDistribution to a new class.

chrome/installer/util/browser_distribution.cc

Index: chrome/installer/util/browser_distribution.cc
diff --git a/chrome/installer/util/browser_distribution.cc b/chrome/installer/util/browser_distribution.cc
index bde7d20ae8f37f9d0aab947ef51d40d0d4276e08..dd2f0e4563dbbeea1f45c29fcb69f041f445a6ea 100644
--- a/chrome/installer/util/browser_distribution.cc
+++ b/chrome/installer/util/browser_distribution.cc
@@ -262,23 +262,6 @@ void BrowserDistribution::UpdateInstallStatus(bool system_install,
     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) {
-}