WebUI: Move test_browser_proxy.js one level up.

chrome/test/data/webui/settings/test_site_settings_prefs_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.
 
 /**
  * Only used for tests.
  * @typedef {{
  *   auto_downloads: !Array<!RawSiteException>},
  *   background_sync: !Array<!RawSiteException>},
  *   camera: !Array<!RawSiteException>},
@@ skipping 58 matching lines @@
   },
 };
 
 /**
  * A test version of SiteSettingsPrefsBrowserProxy. Provides helper methods
  * for allowing tests to know when a method was called, as well as
  * specifying mock responses.
  *
  * @constructor
  * @implements {settings.SiteSettingsPrefsBrowserProxy}
- * @extends {settings.TestBrowserProxy}
+ * @extends {TestBrowserProxy}
  */
 var TestSiteSettingsPrefsBrowserProxy = function() {
-  settings.TestBrowserProxy.call(this, [
+  TestBrowserProxy.call(this, [
     'fetchUsbDevices',
     'fetchZoomLevels',
     'getCookieDetails',
     'getDefaultValueForContentType',
     'getExceptionList',
     'isPatternValid',
     'observeProtocolHandlers',
     'observeProtocolHandlersEnabledState',
     'reloadCookies',
     'removeCookie',
@@ skipping 23 matching lines @@
   this.protocolHandlers_ = [];
 
   /** @private {?CookieList} */
   this.cookieDetails_ = null;
 
   /** @private {boolean} */
   this.isPatternValid_ = true;
 };
 
 TestSiteSettingsPrefsBrowserProxy.prototype = {
-  __proto__: settings.TestBrowserProxy.prototype,
+  __proto__: TestBrowserProxy.prototype,
 
   /**
    * Pretends an incognito session started or ended.
    * @param {boolean} hasIncognito True for session started.
    */
   setIncognito: function(hasIncognito) {
     this.hasIncognito_ = hasIncognito;
     cr.webUIListenerCallback('onIncognitoStatusChanged', hasIncognito);
   },
 
@@ skipping 238 matching lines @@
   /** @override */
   removeProtocolHandler: function() {
     this.methodCalled('removeProtocolHandler', arguments);
   },
 
   /** @override */
   updateIncognitoStatus: function() {
     this.methodCalled('updateIncognitoStatus', arguments);
   }
 };