Site Settings Desktop: Implement Zoom Levels category.

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: {
@@ skipping 32 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}
  */
 var TestSiteSettingsPrefsBrowserProxy = function() {
   settings.TestBrowserProxy.call(this, [
+    'fetchZoomLevels',
     'getDefaultValueForContentType',
     'getExceptionList',
+    'removeZoomLevel',
     'resetCategoryPermissionForOrigin',
     'setCategoryPermissionForOrigin',
     'setDefaultValueForContentType',
   ]);
 
   /** @private {!SiteSettingsPref} */
   this.prefs_ = prefsEmpty;
+
+  /** @private {!Array<ZoomLevelEntry>} */
+  this.zoomList_ = [];
 };
 
-// TODO(finnur): Modify the tests so that most of the code this class implements
-//     can be ripped out.
 TestSiteSettingsPrefsBrowserProxy.prototype = {
   __proto__: settings.TestBrowserProxy.prototype,
 
   /**
    * Sets the prefs to use when testing.
    * @param {!SiteSettingsPref} prefs The prefs to set.
    */
   setPrefs: function(prefs) {
     this.prefs_ = prefs;
 
     // Notify all listeners that their data may be out of date.
     for (var type in settings.ContentSettingsTypes) {
       cr.webUIListenerCallback(
           'contentSettingSitePermissionChanged',
           settings.ContentSettingsTypes[type],
           '');
     }
   },
 
+  /**
+   * Sets the prefs to use when testing.
+   * @param !Array<ZoomLevelEntry> list The zoom list to set.
+   */
+  setZoomList: function(list) {
+    this.zoomList_ = list;
+  },
+
   /** @override */
   setDefaultValueForContentType: function(contentType, defaultValue) {
     this.methodCalled(
         'setDefaultValueForContentType', [contentType, defaultValue]);
   },
 
   /** @override */
   getDefaultValueForContentType: function(contentType) {
     this.methodCalled('getDefaultValueForContentType', contentType);
 
@@ skipping 83 matching lines @@
     return Promise.resolve();
   },
 
   /** @override */
   setCategoryPermissionForOrigin: function(
       primaryPattern, secondaryPattern, contentType, value, incognito) {
     this.methodCalled('setCategoryPermissionForOrigin',
         [primaryPattern, secondaryPattern, contentType, value]);
     return Promise.resolve();
   },
+
+  /** @override */
+  fetchZoomLevels: function() {
+    cr.webUIListenerCallback('onZoomLevelsChanged', this.zoomList_);
+    this.methodCalled('fetchZoomLevels');
+  },
+
+  /** @override */
+  removeZoomLevel: function(host) {
+    this.methodCalled('removeZoomLevel', [host]);
+  },
 };