Site Settings Desktop: Implement Zoom Levels category.

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

Index: chrome/test/data/webui/settings/test_site_settings_prefs_browser_proxy.js
diff --git a/chrome/test/data/webui/settings/test_site_settings_prefs_browser_proxy.js b/chrome/test/data/webui/settings/test_site_settings_prefs_browser_proxy.js
index eff2a1aa2cb55aa47f161789b059e3c4c8805b2c..2f4f8eb157c351b0773431c78d08d02d9614d173 100644
--- a/chrome/test/data/webui/settings/test_site_settings_prefs_browser_proxy.js
+++ b/chrome/test/data/webui/settings/test_site_settings_prefs_browser_proxy.js
@@ -50,8 +50,10 @@ var prefsEmpty = {
  */
 var TestSiteSettingsPrefsBrowserProxy = function() {
   settings.TestBrowserProxy.call(this, [
+    'fetchZoomLevels',
     'getDefaultValueForContentType',
     'getExceptionList',
+    'removeZoomLevel',
     'resetCategoryPermissionForOrigin',
     'setCategoryPermissionForOrigin',
     'setDefaultValueForContentType',
@@ -59,10 +61,11 @@ var TestSiteSettingsPrefsBrowserProxy = function() {
 
   /** @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,
 
@@ -82,6 +85,14 @@ TestSiteSettingsPrefsBrowserProxy.prototype = {
     }
   },
 
+  /**
+   * 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(
@@ -185,4 +196,15 @@ TestSiteSettingsPrefsBrowserProxy.prototype = {
         [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]);
+  },
 };