Add desktop UI for the subresource filter content setting.

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 6fe9b1ca4a670e19f9e30d280c432135acc73109..aa87d089aefd9b993a1eb554a34b74c14956a316 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
@@ -20,6 +20,7 @@ var prefsEmpty = {
     plugins: '',
     popups: '',
     unsandboxed_plugins: '',
+    subresource_filter: '',
   },
   exceptions: {
     auto_downloads: [],
@@ -34,6 +35,7 @@ var prefsEmpty = {
     plugins: [],
     popups: [],
     unsandboxed_plugins: [],
+    subresource_filter: [],
   },
 };
 
@@ -227,6 +229,8 @@ TestSiteSettingsPrefsBrowserProxy.prototype = {
       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);