Typecheck JS files for chrome://extensions

chrome/browser/ui/webui/extensions/chromeos/kiosk_apps_handler.cc

Index: chrome/browser/ui/webui/extensions/chromeos/kiosk_apps_handler.cc
diff --git a/chrome/browser/ui/webui/extensions/chromeos/kiosk_apps_handler.cc b/chrome/browser/ui/webui/extensions/chromeos/kiosk_apps_handler.cc
index fb18d83337b99b5ef067bef901c8c472d234e5a5..f9210ebbfd921c5256f566e8c991642d557b7274 100644
--- a/chrome/browser/ui/webui/extensions/chromeos/kiosk_apps_handler.cc
+++ b/chrome/browser/ui/webui/extensions/chromeos/kiosk_apps_handler.cc
@@ -42,6 +42,10 @@ void PopulateAppDict(const KioskAppManager::App& app_data,
   if (!app_data.icon.isNull())
     icon_url = webui::GetBitmapDataUrl(*app_data.icon.bitmap());
 
+  // The items which are to be written into app_dict are also described in
+  // chrome/browser/resources/extensions/chromeos/kiosk_app_list.js in @typedef
+  // for BackendAppDataObject. Please update it whenever you add or remove any
+  // keys here.
   app_dict->SetString("id", app_data.app_id);
   app_dict->SetString("name", app_data.name);
   app_dict->SetString("iconURL", icon_url);