Sync the launch type pref for apps.

chrome/browser/ui/webui/ntp/app_launcher_handler.cc

Index: chrome/browser/ui/webui/ntp/app_launcher_handler.cc
diff --git a/chrome/browser/ui/webui/ntp/app_launcher_handler.cc b/chrome/browser/ui/webui/ntp/app_launcher_handler.cc
index 06599e8ca32dfb6b91243757cfcd1e6229cc06f7..ae7e3454b7c396e601a800f4f3a24b769a1f30d3 100644
--- a/chrome/browser/ui/webui/ntp/app_launcher_handler.cc
+++ b/chrome/browser/ui/webui/ntp/app_launcher_handler.cc
@@ -562,10 +562,9 @@ void AppLauncherHandler::HandleSetLaunchType(const ListValue* args) {
   base::AutoReset<bool> auto_reset(&ignore_changes_, true);
 
   extensions::SetLaunchType(
-      extension_service_->extension_prefs(),
+      extension_service_,
       extension_id,
-      static_cast<extensions::LaunchType>(
-          static_cast<int>(launch_type)));
+      static_cast<extensions::LaunchType>(static_cast<int>(launch_type)));
 }
 
 void AppLauncherHandler::HandleUninstallApp(const ListValue* args) {