Reland of move webrtc/libjingle/{xmllite,xmpp}

webrtc/libjingle/xmpp/pingtask.h

Index: webrtc/libjingle/xmpp/pingtask.h
diff --git a/webrtc/libjingle/xmpp/pingtask.h b/webrtc/libjingle/xmpp/pingtask.h
deleted file mode 100644
index b070a1ccf1ebbc83b5c4acd9c1b7a544098300e6..0000000000000000000000000000000000000000
--- a/webrtc/libjingle/xmpp/pingtask.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- *  Copyright 2011 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_PINGTASK_H_
-#define WEBRTC_LIBJINGLE_XMPP_PINGTASK_H_
-
-#include "webrtc/libjingle/xmpp/xmpptask.h"
-#include "webrtc/base/messagehandler.h"
-#include "webrtc/base/messagequeue.h"
-
-namespace buzz {
-
-// Task to periodically send pings to the server to ensure that the network
-// connection is valid, implementing XEP-0199.
-//
-// This is especially useful on cellular networks because:
-// 1. It keeps the connections alive through the cellular network's NATs or
-//    proxies.
-// 2. It detects when the server has crashed or any other case in which the
-//    connection has broken without a fin or reset packet being sent to us.
-class PingTask : public buzz::XmppTask, private rtc::MessageHandler {
- public:
-  PingTask(buzz::XmppTaskParentInterface* parent,
-           rtc::MessageQueue* message_queue,
-           uint32_t ping_period_millis,
-           uint32_t ping_timeout_millis);
-
-  virtual bool HandleStanza(const buzz::XmlElement* stanza);
-  virtual int ProcessStart();
-
-  // Raised if there is no response to a ping within ping_timeout_millis.
-  // The task is automatically aborted after a timeout.
-  sigslot::signal0<> SignalTimeout;
-
- private:
-  // Implementation of MessageHandler.
-  virtual void OnMessage(rtc::Message* msg);
-
-  rtc::MessageQueue* message_queue_;
-  uint32_t ping_period_millis_;
-  uint32_t ping_timeout_millis_;
-  int64_t next_ping_time_;
-  int64_t ping_response_deadline_;  // 0 if the response has been received
-};
-
-} // namespace buzz
-
-#endif  // WEBRTC_LIBJINGLE_XMPP_PINGTASK_H_