remoting: Add out-of-line copy ctors for complex classes.

remoting/test/host_info.h

 // Copyright 2015 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_TEST_HOST_INFO_H_
 #define REMOTING_TEST_HOST_INFO_H_
 
 #include <string>
 #include <vector>
 
 #include "base/values.h"
 #include "remoting/test/connection_setup_info.h"
 
 namespace remoting {
 namespace test {
 
 enum HostStatus {
   kHostStatusOnline,
   kHostStatusOffline
 };
 
 struct HostInfo {
   HostInfo();
+  HostInfo(const HostInfo& other);
   ~HostInfo();
 
   // Returns true if |host_info| is valid and initializes HostInfo.
   bool ParseHostInfo(const base::DictionaryValue& host_info);
 
   // Returns true if the chromoting host is ready to accept connections.
   bool IsReadyForConnection() const;
 
   // Generates connection information to establish a chromoting connection.
   ConnectionSetupInfo GenerateConnectionSetupInfo(
       const std::string& access_token,
       const std::string& user_name,
       const std::string& pin) const;
 
   std::string host_id;
   std::string host_jid;
   std::string host_name;
   HostStatus status = kHostStatusOffline;
   std::string offline_reason;
   std::string public_key;
   std::vector<std::string> token_url_patterns;
 };
 
 }  // namespace test
 }  // namespace remoting
 
 #endif  // REMOTING_TEST_HOST_INFO_H_