[pinpoint] Add iron-form and paper-checkbox to polymer components.

third_party/polymer/components/promise-polyfill/Promise-Statics.js

+/**
+@license
+Copyright (c) 2016 The Polymer Project Authors. All rights reserved.
+This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
+The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
+The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
+Code distributed by Google as part of the polymer project is also
+subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
+*/
+Promise.all = Promise.all || function () {
+  var args = Array.prototype.slice.call(arguments.length === 1 && Array.isArray(arguments[0]) ? arguments[0] : arguments);
+
+  return new Promise(function (resolve, reject) {
+    if (args.length === 0) return resolve([]);
+    var remaining = args.length;
+    function res(i, val) {
+      try {
+        if (val && (typeof val === 'object' || typeof val === 'function')) {
+          var then = val.then;
+          if (typeof then === 'function') {
+            then.call(val, function (val) { res(i, val) }, reject);
+            return;
+          }
+        }
+        args[i] = val;
+        if (--remaining === 0) {
+          resolve(args);
+        }
+      } catch (ex) {
+        reject(ex);
+      }
+    }
+    for (var i = 0; i < args.length; i++) {
+      res(i, args[i]);
+    }
+  });
+};
+
+Promise.race = Promise.race || function(values) {
+  // TODO(bradfordcsmith): To be consistent with the ECMAScript spec, this
+  //     method should take any iterable, not just an array.
+  var forcedArray = /** @type {!Array<!Thenable>} */ (values);
+  return new Promise(function (resolve, reject) {
+    for(var i = 0, len = forcedArray.length; i < len; i++) {
+      forcedArray[i].then(resolve, reject);
+    }
+  });
+};
+