Settings: Fix some BrowserProxy compile issues.

chrome/browser/resources/settings/people_page/change_picture_browser_proxy.js

 // Copyright 2016 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 A helper object used from the "Change Picture" subpage of
  * the People section to interact with the browser. ChromeOS only.
  */
 cr.exportPath('settings');
 
@@ skipping 49 matching lines @@
 
     /**
      * Requests a file chooser to select a new user image. No response is
      * expected.
      */
     chooseFile: function() {},
   };
 
   /**
    * @constructor
-   * @implements {ChangePictureBrowserProxy}
+   * @implements {settings.ChangePictureBrowserProxy}
    */
   function ChangePictureBrowserProxyImpl() {}
   // The singleton instance_ is replaced with a test version of this wrapper
   // during testing.
   cr.addSingletonGetter(ChangePictureBrowserProxyImpl);
 
   ChangePictureBrowserProxyImpl.prototype = {
     /** @override */
     initialize: function() {
       chrome.send('onChangePicturePageInitialized');
@@ skipping 19 matching lines @@
       chrome.send('photoTaken', [photoDataUrl]);
     },
 
     /** @override */
     chooseFile: function() {
       chrome.send('chooseFile');
     },
   };
 
   return {
+    ChangePictureBrowserProxy: ChangePictureBrowserProxy,
     ChangePictureBrowserProxyImpl: ChangePictureBrowserProxyImpl,
   };
 });