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

remoting/signaling/xmpp_signal_strategy.cc

 // Copyright 2014 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.
 
 #include "remoting/signaling/xmpp_signal_strategy.h"
 
 #include <utility>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 28 matching lines @@
 
 const int kDefaultXmppPort = 5222;
 const int kDefaultHttpsPort = 443;
 
 namespace remoting {
 
 XmppSignalStrategy::XmppServerConfig::XmppServerConfig()
     : port(kDefaultXmppPort), use_tls(true) {
 }
 
+XmppSignalStrategy::XmppServerConfig::XmppServerConfig(
+    const XmppServerConfig& other) = default;
+
 XmppSignalStrategy::XmppServerConfig::~XmppServerConfig() {
 }
 
 class XmppSignalStrategy::Core : public XmppLoginHandler::Delegate {
  public:
   Core(
       net::ClientSocketFactory* socket_factory,
       const scoped_refptr<net::URLRequestContextGetter>& request_context_getter,
       const XmppServerConfig& xmpp_server_config);
   ~Core() override;
@@ skipping 471 matching lines @@
 std::string XmppSignalStrategy::GetNextId() {
   return base::Uint64ToString(base::RandUint64());
 }
 
 void XmppSignalStrategy::SetAuthInfo(const std::string& username,
                                      const std::string& auth_token) {
   core_->SetAuthInfo(username, auth_token);
 }
 
 }  // namespace remoting