[Chromoting] Create core Application interface for CRD.

remoting/webapp/base/js/application.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
+ * Interface abstracting the Application functionality.
+ */
+
+'use strict';
+
+/** @suppress {duplicate} */
+var remoting = remoting || {};
+
+/**
+ * @interface
+ */
+remoting.Application = function() {};
+
+/**
+ * @return {void} Nothing.

[Jamie, 2014/12/04 22:56:57]

It would help to know a bit more about how these callbacks are used. Some (like
init) are relatively obvious, but a bit of documentation for each would be
useful.

[garykac, 2014/12/05 19:55:40]

Done.

+ */
+remoting.Application.prototype.init = function() {};
+
+/**
+ * @return {void} Nothing.
+ */
+remoting.Application.prototype.onConnected = function() {};
+
+/**
+ * @return {void} Nothing.
+ */
+remoting.Application.prototype.onDisconnected = function() {};
+
+/**
+ * @return {void} Nothing.
+ */
+remoting.Application.prototype.onHostStarted = function() {};
+
+/**
+ * @param {remoting.Error} errorTag The error to be localized and displayed.
+ * @return {void} Nothing.
+ */
+remoting.Application.prototype.onError = function(errorTag) {};
+
+/** @type {remoting.Application} */
+remoting.app = null;