Add public API generation with cr.makePublic() and handle it in compiler pass

chrome/browser/resources/options/startup_overlay.js

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 cr.define('options', function() {
   /** @const */ var ArrayDataModel = cr.ui.ArrayDataModel;
   /** @const */ var SettingsDialog = options.SettingsDialog;
 
   /**
    * StartupOverlay class
@@ skipping 137 matching lines @@
       // current list, do nothing.
       if (list.targetInput && list.selectedItem &&
           list.selectedItem.url == list.targetInput.value) {
         return;
       }
       list.suggestions = suggestions;
     },
   };
 
   // Forward public APIs to private implementations.
-  [
+  cr.makePublic(StartupOverlay, [
     'updateStartupPages',
     'updateAutocompleteSuggestions',
-  ].forEach(function(name) {
-    StartupOverlay[name] = function() {
-      var instance = StartupOverlay.getInstance();
-      return instance[name + '_'].apply(instance, arguments);
-    };
-  });
+  ]);
 
   // Export
   return {
     StartupOverlay: StartupOverlay
   };
 });