Add kiosk browser tests for network configuration.

chrome/browser/chromeos/app_mode/startup_app_launcher.cc

Index: chrome/browser/chromeos/app_mode/startup_app_launcher.cc
diff --git a/chrome/browser/chromeos/app_mode/startup_app_launcher.cc b/chrome/browser/chromeos/app_mode/startup_app_launcher.cc
index f0123003ab981d4549476038f624665d7ff173e4..23c8ab997639d81f94948b7942240831f5e64d60 100644
--- a/chrome/browser/chromeos/app_mode/startup_app_launcher.cc
+++ b/chrome/browser/chromeos/app_mode/startup_app_launcher.cc
@@ -64,6 +64,11 @@ StartupAppLauncher::StartupAppLauncher(Profile* profile,
 }
 
 StartupAppLauncher::~StartupAppLauncher() {
+  // StartupAppLauncher can be deleted at anytime during the launch process
+  // through a user bailout shortcut.
+  ProfileOAuth2TokenServiceFactory::GetForProfile(profile_)
+      ->RemoveObserver(this);
+  net::NetworkChangeNotifier::RemoveNetworkChangeObserver(this);
 }
 
 void StartupAppLauncher::Start() {