Add IceConfig and IceConfigRequest.

remoting/protocol/ice_config.h

Index: remoting/protocol/ice_config.h
diff --git a/remoting/protocol/ice_config.h b/remoting/protocol/ice_config.h
new file mode 100644
index 0000000000000000000000000000000000000000..17952bdfb76e49c22d809a99caadff1ee22b0fff
--- /dev/null
+++ b/remoting/protocol/ice_config.h
@@ -0,0 +1,40 @@
+// 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_ICE_CONFIG_H_
+#define REMOTING_PROTOCOL_ICE_CONFIG_H_
+
+#include <string>
+#include <vector>
+
+#include "base/time/time.h"
+#include "third_party/webrtc/base/socketaddress.h"
+#include "third_party/webrtc/p2p/base/portallocator.h"
+
+namespace remoting {
+namespace protocol {
+
+struct IceConfig {
+  IceConfig();
+  ~IceConfig();
+
+  bool is_null() const { return expiration_time.is_null(); }
+
+  // Time when the config will stop being valid and need to be refreshed.
+  base::Time expiration_time;
+
+  std::vector<rtc::SocketAddress> stun_hosts;

[Jamie, 2016/02/12 22:48:28]

s/hosts/servers/, here and below, for consistency with |turn_servers| (and
because we use "host" to refer to a CRD host)? Unless these terms are standard
nomenclature.

[Sergey Ulanov, 2016/02/13 01:11:02]

Done.

+
+  // Legacy GTURN relay servers.
+  std::vector<std::string> relay_hosts;
+  std::string relay_token;
+
+  // Standard TURN servers
+  std::vector<cricket::RelayServerConfig> turn_servers;
+};
+
+}  // namespace protocol
+}  // namespace remoting
+
+#endif  // REMOTING_PROTOCOL_ICE_CONFIG_H_