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..6daff0c2c36d9f1f139ce18f85ea845b74911a6f
--- /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_servers;
+
+  // Legacy GTURN relay servers.
+  std::vector<std::string> relay_servers;
+  std::string relay_token;
+
+  // Standard TURN servers
+  std::vector<cricket::RelayServerConfig> turn_servers;
+};
+
+}  // namespace protocol
+}  // namespace remoting
+
+#endif  // REMOTING_PROTOCOL_ICE_CONFIG_H_