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

webrtc/libjingle/xmpp/mucroomlookuptask.h

Index: webrtc/libjingle/xmpp/mucroomlookuptask.h
diff --git a/webrtc/libjingle/xmpp/mucroomlookuptask.h b/webrtc/libjingle/xmpp/mucroomlookuptask.h
new file mode 100644
index 0000000000000000000000000000000000000000..d87b3da20bf60510261da24631c756fd03234524
--- /dev/null
+++ b/webrtc/libjingle/xmpp/mucroomlookuptask.h
@@ -0,0 +1,76 @@
+/*
+ *  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_MUCROOMLOOKUPTASK_H_
+#define WEBRTC_LIBJINGLE_XMPP_MUCROOMLOOKUPTASK_H_
+
+#include <string>
+#include "webrtc/libjingle/xmpp/iqtask.h"
+
+namespace buzz {
+
+struct MucRoomInfo {
+  Jid jid;
+  std::string name;
+  std::string domain;
+  std::string hangout_id;
+
+  std::string full_name() const {
+    return name + "@" + domain;
+  }
+};
+
+class MucRoomLookupTask : public IqTask {
+ public:
+  enum IdType {
+    ID_TYPE_CONVERSATION,
+    ID_TYPE_HANGOUT
+  };
+
+  static MucRoomLookupTask*
+      CreateLookupTaskForRoomName(XmppTaskParentInterface* parent,
+                                  const Jid& lookup_server_jid,
+                                  const std::string& room_name,
+                                  const std::string& room_domain);
+  static MucRoomLookupTask*
+      CreateLookupTaskForRoomJid(XmppTaskParentInterface* parent,
+                                 const Jid& lookup_server_jid,
+                                 const Jid& room_jid);
+  static MucRoomLookupTask*
+      CreateLookupTaskForHangoutId(XmppTaskParentInterface* parent,
+                                   const Jid& lookup_server_jid,
+                                   const std::string& hangout_id);
+  static MucRoomLookupTask*
+      CreateLookupTaskForExternalId(XmppTaskParentInterface* parent,
+                                    const Jid& lookup_server_jid,
+                                    const std::string& external_id,
+                                    const std::string& type);
+
+  sigslot::signal2<MucRoomLookupTask*,
+                   const MucRoomInfo&> SignalResult;
+
+ protected:
+  virtual void HandleResult(const XmlElement* element);
+
+ private:
+  MucRoomLookupTask(XmppTaskParentInterface* parent,
+                    const Jid& lookup_server_jid,
+                    XmlElement* query);
+  static XmlElement* MakeNameQuery(const std::string& room_name,
+                                   const std::string& room_domain);
+  static XmlElement* MakeJidQuery(const Jid& room_jid);
+  static XmlElement* MakeHangoutIdQuery(const std::string& hangout_id);
+  static XmlElement* MakeExternalIdQuery(const std::string& external_id,
+                                         const std::string& type);
+};
+
+}  // namespace buzz
+
+#endif  // WEBRTC_LIBJINGLE_XMPP_MUCROOMLOOKUPTASK_H_