Add IceConfig and IceConfigRequest.

remoting/protocol/jingle_info_request.h

Index: remoting/protocol/jingle_info_request.h
diff --git a/remoting/protocol/jingle_info_request.h b/remoting/protocol/jingle_info_request.h
new file mode 100644
index 0000000000000000000000000000000000000000..f905539ca4c2aba4159ac062c02b77a2379f12e0
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+++ b/remoting/protocol/jingle_info_request.h
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+// Copyright 2016 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.
+
+#ifndef REMOTING_PROTOCOL_JINGLE_INFO_REQUEST_H_
+#define REMOTING_PROTOCOL_JINGLE_INFO_REQUEST_H_
+
+#include <set>
+#include <string>
+#include <vector>
+
+#include "base/callback.h"
+#include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
+#include "remoting/protocol/ice_config_request.h"
+#include "remoting/signaling/iq_sender.h"
+
+namespace buzz {
+class XmlElement;
+}  // namespace buzz
+
+namespace remoting {
+
+class SignalStrategy;
+
+namespace protocol {
+
+// IceConfigRequest that fetches IceConfig from Google Talk servers using HTTP.
+class JingleInfoRequest : public IceConfigRequest {
+ public:
+  explicit JingleInfoRequest(SignalStrategy* signal_strategy);
+  ~JingleInfoRequest() override;
+
+  // IceConfigRequest interface.
+  void Send(const OnIceConfigCallback& callback) override;
+
+ private:
+  void OnResponse(IqRequest* request, const buzz::XmlElement* stanza);
+
+  IqSender iq_sender_;
+  scoped_ptr<IqRequest> request_;
+  OnIceConfigCallback on_ice_config_callback_;
+
+  DISALLOW_COPY_AND_ASSIGN(JingleInfoRequest);
+};
+
+}  // namespace protocol
+}  // namespace remoting
+
+#endif  // REMOTING_PROTOCOL_JINGLE_INFO_REQUEST_H_