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

chrome/browser/resources/chromeos/login/oobe_screen_user_image.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.
 
 /**
  * @fileoverview Oobe user image screen implementation.
  */
 
 cr.define('login', function() {
   var UserImagesGrid = options.UserImagesGrid;
@@ skipping 426 matching lines @@
     notifyImageSelected_: function() {
       var imageGrid = $('user-image-grid');
       chrome.send('selectImage',
                   [imageGrid.selectedItemUrl,
                    imageGrid.selectionType,
                    !imageGrid.inProgramSelection]);
     },
   };
 
   // Forward public APIs to private implementations.
-  [
+  cr.makePublic(UserImageScreen, [
     'setDefaultImages',
     'setCameraPresent',
     'setProfilePictureEnabled',
     'setProfileImage',
     'setSelectedImage',
     'hideCurtain'
-  ].forEach(function(name) {
-    UserImageScreen[name] = function(value) {
-      $('user-image')[name + '_'](value);
-    };
-  });
+  ], $('user-image'));
 
   return {
     UserImageScreen: UserImageScreen
   };
 });