Implement 3 PIN browser tests

remoting/webapp/js_proto/dom_proto.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.
 
 // This file contains various hacks needed to inform JSCompiler of various
 // WebKit- and Chrome-specific properties and methods. It is used only with
 // JSCompiler to verify the type-correctness of our code.
 
 /** @type {HTMLElement} */
 Document.prototype.activeElement;
@@ skipping 149 matching lines @@
  * @constructor
  * @extends {EventTargetStub}
  */
 var MediaSource = function() {}
 
 /**
  * @param {string} format
  * @return {SourceBuffer}
  */
 MediaSource.prototype.addSourceBuffer = function(format) {}
+
+/**
+ * @constructor
+ * @param {function(function(*), function(*)) : void} init
+ */
+var Promise = function (init) {};
+
+/**
+ * @param {function(*) : void} onFulfill
+ * @param {function(*) : void} onReject
+ * @return {Promise}
+ */
+Promise.prototype.then = function (onFulfill, onReject) {};
+
+/**
+ * @param {function(*) : void} onReject
+ * @return {Promise}
+ */
+Promise.prototype['catch'] = function (onReject) {};
+
+/**
+ * @param {Array.<Promise>} promises
+ * @return {Promise}
+ */
+Promise.prototype.race = function (promises) {}
+
+/**
+ * @param {Array.<Promise>} promises
+ * @return {Promise}
+ */
+Promise.prototype.all = function (promises) {};
+
+/**
+ * @param {*} reason
+ * @return {Promise}
+ */
+Promise.reject = function (reason) {};
+
+/**
+ * @param {*} value
+ * @return {Promise}
+ */
+Promise.resolve = function (value) {};