WebUI: Move test_browser_proxy.js one level up.

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

 // Copyright 2015 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.
 
 /**
  * @constructor
  * @implements {settings.AppearanceBrowserProxy}
- * @extends {settings.TestBrowserProxy}
+ * @extends {TestBrowserProxy}
  */
 var TestAppearanceBrowserProxy = function() {
-  settings.TestBrowserProxy.call(this, [
+  TestBrowserProxy.call(this, [
     'getDefaultZoom',
     'getThemeInfo',
     'isSupervised',
     'openWallpaperManager',
     'useDefaultTheme',
     'useSystemTheme',
     'validateStartupPage',
   ]);
 
   /** @private */
   this.defaultZoom_ = 1;
 
   /** @private */
   this.isSupervised_ = false;
 
   /** @private */
   this.isHomeUrlValid_ = true;
 };
 
 TestAppearanceBrowserProxy.prototype = {
-  __proto__: settings.TestBrowserProxy.prototype,
+  __proto__: TestBrowserProxy.prototype,
 
   /** @override */
   getDefaultZoom: function() {
     this.methodCalled('getDefaultZoom');
     return Promise.resolve(this.defaultZoom_);
   },
 
   /** @override */
   getThemeInfo: function(themeId) {
     this.methodCalled('getThemeInfo', themeId);
@@ skipping 239 matching lines @@
           Polymer.dom.flush();
           assertEquals(homeUrlInput.value, '@@@');  // Value hasn't changed.
           assertTrue(homeUrlInput.invalid);
 
           // Should reset to default value on change event.
           homeUrlInput.$.input.fire('change');
           Polymer.dom.flush();
           assertEquals(homeUrlInput.value, 'test');
         });
   });
-});
+});