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

webrtc/libjingle/xmpp/xmpppump.h

Index: webrtc/libjingle/xmpp/xmpppump.h
diff --git a/webrtc/libjingle/xmpp/xmpppump.h b/webrtc/libjingle/xmpp/xmpppump.h
new file mode 100644
index 0000000000000000000000000000000000000000..bd1b5628b5976780a1089c9216445bc7c845a939
--- /dev/null
+++ b/webrtc/libjingle/xmpp/xmpppump.h
@@ -0,0 +1,62 @@
+/*
+ *  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_XMPPPUMP_H_
+#define WEBRTC_LIBJINGLE_XMPP_XMPPPUMP_H_
+
+#include "webrtc/libjingle/xmpp/xmppclient.h"
+#include "webrtc/libjingle/xmpp/xmppengine.h"
+#include "webrtc/libjingle/xmpp/xmpptask.h"
+#include "webrtc/base/messagequeue.h"
+#include "webrtc/base/taskrunner.h"
+#include "webrtc/base/thread.h"
+#include "webrtc/base/timeutils.h"
+
+namespace buzz {
+
+// Simple xmpp pump
+
+class XmppPumpNotify {
+public:
+  virtual ~XmppPumpNotify() {}
+  virtual void OnStateChange(buzz::XmppEngine::State state) = 0;
+};
+
+class XmppPump : public rtc::MessageHandler, public rtc::TaskRunner {
+public:
+  XmppPump(buzz::XmppPumpNotify * notify = NULL);
+
+  buzz::XmppClient *client() { return client_; }
+
+  void DoLogin(const buzz::XmppClientSettings & xcs,
+               buzz::AsyncSocket* socket,
+               buzz::PreXmppAuth* auth);
+  void DoDisconnect();
+
+  void OnStateChange(buzz::XmppEngine::State state);
+
+  void WakeTasks();
+
+  int64_t CurrentTime();
+
+  void OnMessage(rtc::Message *pmsg);
+
+  buzz::XmppReturnStatus SendStanza(const buzz::XmlElement *stanza);
+
+private:
+  buzz::XmppClient *client_;
+  buzz::XmppEngine::State state_;
+  buzz::XmppPumpNotify *notify_;
+};
+
+}  // namespace buzz
+
+#endif // WEBRTC_LIBJINGLE_XMPP_XMPPPUMP_H_
+