WebUI: Move test_browser_proxy.js one level up.

chrome/test/data/webui/settings/test_reset_browser_proxy.js

 // Copyright 2017 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('reset_page', function() {
   /**
    * @constructor
    * @implements {settings.ResetBrowserProxy}
-   * @extends {settings.TestBrowserProxy}
+   * @extends {test.TestBrowserProxy}
    */
   var TestResetBrowserProxy = function() {
-    settings.TestBrowserProxy.call(this, [
+    test.TestBrowserProxy.call(this, [
       'performResetProfileSettings',
       'onHideResetProfileDialog',
       'onHideResetProfileBanner',
       'onShowResetProfileDialog',
       'showReportedSettings',
       'getTriggeredResetToolName',
       'onPowerwashDialogShow',
     ]);
   };
 
   TestResetBrowserProxy.prototype = {
-    __proto__: settings.TestBrowserProxy.prototype,
+    __proto__: test.TestBrowserProxy.prototype,
 
     /** @override */
     performResetProfileSettings: function(sendSettings, requestOrigin) {
       this.methodCalled('performResetProfileSettings', requestOrigin);
       return Promise.resolve();
     },
 
     /** @override */
     onHideResetProfileDialog: function() {
       this.methodCalled('onHideResetProfileDialog');
@@ skipping 23 matching lines @@
     /** @override */
     onPowerwashDialogShow: function() {
       this.methodCalled('onPowerwashDialogShow');
     },
   };
 
   return {
     TestResetBrowserProxy: TestResetBrowserProxy,
   };
 });