Add desktop UI for the subresource filter content setting.

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.
 
 /**
  * An example empty pref.
  * @type {SiteSettingsPref}
  */
 var prefsEmpty = {
   defaults: {
     auto_downloads: '',
     background_sync: '',
     camera: '',
     cookies: '',
     geolocation: '',
     javascript: '',
     mic: '',
     midiDevices: '',
     notifications: '',
     plugins: '',
     popups: '',
     unsandboxed_plugins: '',
+    subresource_filter: '',
   },
   exceptions: {
     auto_downloads: [],
     background_sync: [],
     camera: [],
     cookies: [],
     geolocation: [],
     javascript: [],
     mic: [],
     midiDevices: [],
     notifications: [],
     plugins: [],
     popups: [],
     unsandboxed_plugins: [],
+    subresource_filter: [],
   },
 };
 
 /**
  * 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}
@@ skipping 173 matching lines @@
     else if (contentType == settings.ContentSettingsTypes.PDF_DOCUMENTS)
       pref = this.prefs_.exceptions.pdf_documents;
     else if (contentType == settings.ContentSettingsTypes.PLUGINS)
       pref = this.prefs_.exceptions.plugins;
     else if (contentType == settings.ContentSettingsTypes.PROTECTED_CONTENT)
       pref = this.prefs_.exceptions.protectedContent;
     else if (contentType == settings.ContentSettingsTypes.POPUPS)
       pref = this.prefs_.exceptions.popups;
     else if (contentType == settings.ContentSettingsTypes.UNSANDBOXED_PLUGINS)
       pref = this.prefs_.exceptions.unsandboxed_plugins;
+    else if (contentType == settings.ContentSettingsTypes.SUBRESOURCE_FILTER)
+      pref = this.prefs_.exceptions.subresource_filer;
     else
       console.log('getExceptionList received unknown category: ' + contentType);
 
     assert(pref != undefined, 'Pref is missing for ' + contentType);
     return Promise.resolve(pref);
   },
 
   /** @override */
   isPatternValid: function(pattern) {
     this.methodCalled('isPatternValid', pattern);
@@ skipping 71 matching lines @@
   /** @override */
   setProtocolDefault: function() {
     this.methodCalled('setProtocolDefault', arguments);
   },
 
   /** @override */
   removeProtocolHandler: function() {
     this.methodCalled('removeProtocolHandler', arguments);
   }
 };