Enable the settings UI to toggle the device ID on Windows.

chrome/test/data/extensions/api_test/preference/standard/test.js

 // Copyright (c) 2012 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.
 
 // Preferences API test
 // Run with browser_tests --gtest_filter=ExtensionApiTest.PreferenceApi
 
 var preferences_to_test = [
   {
     root: chrome.privacy.network,
@@ skipping 32 matching lines @@
 
 function expectFalse(pref) {
   return expect({
     value: false,
     levelOfControl: 'controllable_by_this_extension'
   }, '`' + pref + '` is expected to be false.');
 }
 
 function prefGetter(pref) {
   if (pref === 'protectedContentEnabled' && !this[pref]) {
-    // `protectedContentEnabled` is ChromeOS only, so it might not exist when
-    // this test runs, and that's pretty much OK.
+    // `protectedContentEnabled` is Windows/ChromeOS only, so it might not exist
+    // when this test runs, and that's pretty much OK.
     return true;
   }
   this[pref].get({}, expectFalse(pref));
 }
 
 function prefSetter(pref) {
   if (pref === 'protectedContentEnabled' && !this[pref]) {
-    // `protectedContentEnabled` is ChromeOS only, so it might not exist when
-    // this test runs, and that's pretty much OK.
+    // `protectedContentEnabled` is Windows/ChromeOS only, so it might not exist
+    // when this test runs, and that's pretty much OK.
     return true;
   }
   this[pref].set({value: true}, chrome.test.callbackPass());
 }
 
 chrome.test.runTests([
   function getPreferences() {
     for (var i = 0; i < preferences_to_test.length; i++) {
       preferences_to_test[i].preferences.forEach(
           prefGetter.bind(preferences_to_test[i].root));
     }
   },
   function setGlobals() {
     for (var i = 0; i < preferences_to_test.length; i++) {
       preferences_to_test[i].preferences.forEach(
           prefSetter.bind(preferences_to_test[i].root));
     }
   }
 ]);