WebUI: Move test_browser_proxy.js one level up.

chrome/test/data/webui/settings/people_page_sync_page_test.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.
 
 cr.define('settings_people_page_sync_page', function() {
   /**
    * @constructor
    * @implements {settings.SyncBrowserProxy}
-   * @extends {settings.TestBrowserProxy}
+   * @extends {TestBrowserProxy}
    */
   var TestSyncBrowserProxy = function() {
-    settings.TestBrowserProxy.call(this, [
+    TestBrowserProxy.call(this, [
       'didNavigateToSyncPage',
       'didNavigateAwayFromSyncPage',
       'setSyncDatatypes',
       'setSyncEncryption',
     ]);
 
     /* @type {!settings.PageStatus} */
     this.encryptionResponse = settings.PageStatus.CONFIGURE;
   };
 
   TestSyncBrowserProxy.prototype = {
-    __proto__: settings.TestBrowserProxy.prototype,
+    __proto__: TestBrowserProxy.prototype,
 
     /** @override */
     didNavigateToSyncPage: function() {
       this.methodCalled('didNavigateToSyncPage');
     },
 
     /** @override */
     didNavigateAwayFromSyncPage: function() {
       this.methodCalled('didNavigateAwayFromSyncPage');
     },
@@ skipping 431 matching lines @@
       });
     });
   }
 
   return {
     registerTests: function() {
       registerAdvancedSyncSettingsTests();
     },
   };
 });