Revert of Remove webrtc/libjingle/{xmllite,xmpp}

webrtc/libjingle/xmpp/xmppthread.h

+/*
+ *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef WEBRTC_LIBJINGLE_XMPP_XMPPTHREAD_H_
+#define WEBRTC_LIBJINGLE_XMPP_XMPPTHREAD_H_
+
+#include "webrtc/libjingle/xmpp/xmppclientsettings.h"
+#include "webrtc/libjingle/xmpp/xmppengine.h"
+#include "webrtc/libjingle/xmpp/xmpppump.h"
+#include "webrtc/libjingle/xmpp/xmppsocket.h"
+#include "webrtc/base/thread.h"
+
+namespace buzz {
+
+class XmppThread:
+    public rtc::Thread, buzz::XmppPumpNotify, rtc::MessageHandler {
+public:
+  XmppThread();
+  ~XmppThread();
+
+  buzz::XmppClient* client() { return pump_->client(); }
+
+  void ProcessMessages(int cms);
+
+  void Login(const buzz::XmppClientSettings & xcs);
+  void Disconnect();
+
+private:
+  buzz::XmppPump* pump_;
+
+  void OnStateChange(buzz::XmppEngine::State state);
+  void OnMessage(rtc::Message* pmsg);
+};
+
+}  // namespace buzz
+
+#endif  // WEBRTC_LIBJINGLE_XMPP_XMPPTHREAD_H_
+