Added HostListApl implementation to connect to legacy directory and GCD.

remoting/webapp/crd/js/gcd_host_list_api.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} */
@@ skipping 108 matching lines @@
     // Don't return anything.
   });
 };
 
 /** @override */
 remoting.GcdHostListApi.prototype.getSupportHost = function(supportId) {
   console.error('getSupportHost not supported by HostListApiGclImpl');
   return Promise.reject(remoting.Error.unexpected());
 };
 
+/** @override */
+remoting.GcdHostListApi.prototype.getHostIdFromConfig = function(config) {
+  return base.getStringAttr(config, 'gcd_device_id');
+};
+
 /**
  * Tag for distinguishing Chromoting hosts from other devices stored
  * in GCD.
  *
  * @const
  */
 var CHROMOTING_DEVICE_TAG = '1ce4542c-dd87-4320-ba19-ac173f98c04e';
 
 /**
  * Check whether a GCD device entry is a Chromoting host.
@@ skipping 32 matching lines @@
     host.createdTime = new Date(creationTimeMs).toISOString();
   }
   var lastUpdateTimeMs = base.getNumberAttr(device, 'lastUpdateTimeMs', 0);
   if (lastUpdateTimeMs) {
     host.updatedTime = new Date(lastUpdateTimeMs).toISOString();
   }
   return host;
 };
 
 })();