Remove HostDesktopType from AppLaunchParams

chrome/browser/ui/ash/launcher/chrome_launcher_controller.cc

Index: chrome/browser/ui/ash/launcher/chrome_launcher_controller.cc
diff --git a/chrome/browser/ui/ash/launcher/chrome_launcher_controller.cc b/chrome/browser/ui/ash/launcher/chrome_launcher_controller.cc
index aaf46c231ed0cc96cf6bab858475091e00d6f4f5..83b1a569b8b0f764d0924fe86c9535390b2e87dc 100644
--- a/chrome/browser/ui/ash/launcher/chrome_launcher_controller.cc
+++ b/chrome/browser/ui/ash/launcher/chrome_launcher_controller.cc
@@ -779,9 +779,8 @@ void ChromeLauncherController::LaunchApp(const std::string& app_id,
   }
 
   // The app will be created for the currently active profile.
-  AppLaunchParams params(
-      profile_, extension, ui::DispositionFromEventFlags(event_flags),
-      chrome::HOST_DESKTOP_TYPE_ASH, extensions::SOURCE_APP_LAUNCHER);
+  AppLaunchParams params = CreateAppLaunchParamsWithEventFlags(
+      profile_, extension, event_flags, extensions::SOURCE_APP_LAUNCHER);
   if (source != ash::LAUNCH_FROM_UNKNOWN &&
       app_id == extensions::kWebStoreAppId) {
     // Get the corresponding source string.