Use XMPP in V2 webapp

remoting/webapp/signal_strategy.js

Index: remoting/webapp/signal_strategy.js
diff --git a/remoting/webapp/signal_strategy.js b/remoting/webapp/signal_strategy.js
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+// 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.
+
+'use strict';
+
+/** @suppress {duplicate} */
+var remoting = remoting || {};
+
+/**
+ * Abstract interface for various signaling mechanisms.
+ *
+ * @interface
+ * @extends {base.Disposable}
+ */
+remoting.SignalStrategy = function() {};
+
+/**
+ * @enum {number} SignalStrategy states. Possible state transitions:
+ *    NOT_CONNECTED -> CONNECTING (connect() called).
+ *    CONNECTING -> HANDSHAKE (connected successfully).
+ *    HANDSHAKE -> CONNECTED (authenticated successfully).
+ *    CONNECTING -> FAILED (connection failed).
+ *    HANDSHAKE -> FAILED (authentication failed).
+ *    * -> CLOSED (dispose() called).
+ */
+remoting.SignalStrategy.State = {
+  NOT_CONNECTED: 0,
+  CONNECTING: 1,
+  HANDSHAKE: 2,
+  CONNECTED: 3,
+  FAILED: 4,
+  CLOSED: 5
+};
+
+remoting.SignalStrategy.prototype.dispose = function() {};
+
+/**
+ * @param {?function(Element):void} onIncomingStanzaCallback Callback to call on
+ *     incoming messages.
+ */
+remoting.SignalStrategy.prototype.setIncomingStanzaCallback =
+    function(onIncomingStanzaCallback) {};
+
+/**
+ * @param {string} server
+ * @param {string} username
+ * @param {string} authToken
+ */
+remoting.SignalStrategy.prototype.connect =
+    function(server, username, authToken) {
+};
+
+/**
+ * Sends a message. Can be called only in CONNECTED state.
+ * @param {string} message
+ */
+remoting.SignalStrategy.prototype.sendMessage = function(message) {};
+
+/** @return {remoting.SignalStrategy.State} Current state */
+remoting.SignalStrategy.prototype.getState = function() {};
+
+/** @return {remoting.Error} Error when in FAILED state. */
+remoting.SignalStrategy.prototype.getError = function() {};
+
+/** @return {string} Current JID when in CONNECTED state. */
+remoting.SignalStrategy.prototype.getJid = function() {};