Revert of Remove HostDesktopType from AppLaunchParams

chrome/browser/chromeos/first_run/first_run_controller.cc

Index: chrome/browser/chromeos/first_run/first_run_controller.cc
diff --git a/chrome/browser/chromeos/first_run/first_run_controller.cc b/chrome/browser/chromeos/first_run/first_run_controller.cc
index bb44a54e232eeedd7715173255d29f8267d1f11c..ecb7a75d0150db1162138849584ca4e93420f92e 100644
--- a/chrome/browser/chromeos/first_run/first_run_controller.cc
+++ b/chrome/browser/chromeos/first_run/first_run_controller.cc
@@ -123,8 +123,9 @@ void FirstRunController::OnNextButtonClicked(const std::string& step_name) {
 
 void FirstRunController::OnHelpButtonClicked() {
   RecordCompletion(first_run::TUTORIAL_COMPLETED_WITH_KEEP_EXPLORING);
-  on_actor_finalized_ = base::Bind(chrome::ShowHelpForProfile, user_profile_,
-                                   chrome::HELP_SOURCE_MENU);
+  on_actor_finalized_ =
+      base::Bind(chrome::ShowHelpForProfile, user_profile_,
+                 chrome::HOST_DESKTOP_TYPE_ASH, chrome::HELP_SOURCE_MENU);
   actor_->Finalize();
 }