[Extensions Bindings] Add ChromeSetting custom type

chrome/test/data/extensions/api_test/native_bindings/extension/background.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.
 
 if (!chrome || !chrome.test)
   throw new Error('chrome.test is undefined');
 
 var portNumber;
 
 // This is a good end-to-end test for two reasons. The first is obvious - it
@@ skipping 134 matching lines @@
                             'managed quota bytes');
     chrome.storage.local.set({foo: 'bar'}, () => {
       chrome.storage.local.get('foo', (results) => {
         chrome.test.assertTrue(!!results, 'no results');
         chrome.test.assertTrue(!!results.foo, 'no foo');
         chrome.test.assertEq('bar', results.foo);
         chrome.test.succeed();
       });
     });
   },
+  function testChromeSetting() {
+    chrome.test.assertTrue(!!chrome.privacy, 'privacy');
+    chrome.test.assertTrue(!!chrome.privacy.websites, 'websites');
+    var cookiePolicy = chrome.privacy.websites.thirdPartyCookiesAllowed;
+    chrome.test.assertTrue(!!cookiePolicy, 'cookie policy');
+    chrome.test.assertTrue(!!cookiePolicy.get, 'get');
+    chrome.test.assertTrue(!!cookiePolicy.set, 'set');
+    chrome.test.assertTrue(!!cookiePolicy.clear, 'clear');
+    chrome.test.assertTrue(!!cookiePolicy.onChange, 'onchange');
+
+    // The JSON spec for ChromeSettings is weird, because it claims it allows
+    // any type for <val> in ChromeSetting.set({value: <val>}), but this is just
+    // a hack in our schema generation because we curry in the different types
+    // of restrictions. Trying to pass in the wrong type for value should fail
+    // (synchronously).
+    var caught = false;
+    try {
+      cookiePolicy.set({value: 'not a bool'});
+    } catch (e) {
+      caught = true;
+    }
+    chrome.test.assertTrue(caught, 'caught');
+
+    var listenerPromise = new Promise((resolve, reject) => {
+      cookiePolicy.onChange.addListener(function listener(details) {
+        chrome.test.assertTrue(!!details, 'listener details');
+        chrome.test.assertEq(false, details.value);
+        cookiePolicy.onChange.removeListener(listener);
+        resolve();
+      });
+    });
+
+    var methodPromise = new Promise((resolve, reject) => {
+      cookiePolicy.get({}, (details) => {
+        chrome.test.assertTrue(!!details, 'get details');
+        chrome.test.assertTrue(details.value, 'details value true');
+        cookiePolicy.set({value: false}, () => {
+          cookiePolicy.get({}, (details) => {
+            chrome.test.assertTrue(!!details, 'get details');
+            chrome.test.assertFalse(details.value, 'details value false');
+            resolve();
+          });
+        });
+      });
+    });
+
+    Promise.all([listenerPromise, methodPromise]).then(() => {
+      chrome.test.succeed();
+    });
+  },
 ];
 
 chrome.test.getConfig(config => {
   chrome.test.assertTrue(!!config, 'config does not exist');
   chrome.test.assertTrue(!!config.testServer, 'testServer does not exist');
   portNumber = config.testServer.port;
   chrome.test.runTests(tests);
 });