Added (incomplete) implementation of HostListApi using GCD.

remoting/webapp/crd/js/host_list_api_gcd_impl.js

+// Copyright 2014 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.
+
+/**
+ * @fileoverview
+ * REST API for host-list management.
+ */
+
+/** @suppress {duplicate} */
+var remoting = remoting || {};
+
+(function() {
+
+'use strict';
+
+/**
+ * @constructor
+ * @implements {remoting.HostListApi}
+ */
+remoting.HostListApiGcdImpl = function() {
+  this.gcd_ = new remoting.gcd.Client({
+    apiKey: remoting.settings.GOOGLE_API_KEY
+  });
+};
+
+/** @override */
+remoting.HostListApiGcdImpl.prototype.register = function(
+    newHostId, hostName, publicKey, hostClientId) {
+  var self = this;
+  var deviceDraft = {
+    channel: {
+      supportedType: 'xmpp'
+    },
+    deviceKind: 'vendor',
+    name: newHostId,
+    displayName: hostName,
+    state: {
+      'publicKey': publicKey
+    }
+  };
+
+  return /** @type {!Promise<string>} */ (
+      this.gcd_.insertRegistrationTicket().
+      then(function(ticket) {
+        return self.gcd_.patchRegistrationTicket(
+            ticket.id, deviceDraft, hostClientId);
+      }).
+      then(function(/**remoting.gcd.RegistrationTicket*/ ticket) {
+        return self.gcd_.finalizeRegistrationTicket(ticket.id);
+      }).
+      then(function(/**remoting.gcd.RegistrationTicket*/ ticket) {
+        return ticket.robotAccountAuthorizationCode;
+      }).
+      catch(function(error) {
+        console.error('Error registering device with GCD: ' + error);
+        throw new remoting.Error(remoting.Error.Tag.REGISTRATION_FAILED);
+      }));
+};
+
+/** @override */
+remoting.HostListApiGcdImpl.prototype.get = function() {
+  // TODO(jrw)
+  this.gcd_.listDevices();
+  return Promise.resolve([]);
+};
+
+/** @override */
+remoting.HostListApiGcdImpl.prototype.put =
+    function(hostId, hostName, hostPublicKey) {
+  // TODO(jrw)
+  throw new Error('Not implemented');
+};
+
+/** @override */
+remoting.HostListApiGcdImpl.prototype.remove = function(hostId) {
+  // TODO(jrw)
+  throw new Error('Not implemented');
+};
+
+})();