Moved XMPP notifier library from chrome/browser/sync to chrome/common....

chrome/browser/sync/notifier/communicator/xmpp_connection_generator.h

-// Copyright (c) 2009 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 CHROME_BROWSER_SYNC_NOTIFIER_COMMUNICATOR_XMPP_CONNECTION_GENERATOR_H_
-#define CHROME_BROWSER_SYNC_NOTIFIER_COMMUNICATOR_XMPP_CONNECTION_GENERATOR_H_
-
-#include <vector>
-
-#include "talk/base/scoped_ptr.h"
-#include "talk/base/sigslot.h"
-#include "talk/base/socketaddress.h"
-
-namespace talk_base {
-class AutoDetectProxy;
-struct ProxyInfo;
-class SignalThread;
-class Task;
-}
-
-namespace notifier {
-
-class AsyncDNSLookup;
-class ConnectionOptions;
-class ConnectionSettings;
-class ConnectionSettingsList;
-
-struct ServerInformation {
-  talk_base::SocketAddress server;
-  bool special_port_magic;
-};
-
-// Resolves dns names and iterates through the various ip address and transport
-// combinations.
-class XmppConnectionGenerator : public sigslot::has_slots<> {
- public:
-  // parent is the parent for any tasks needed during this operation.
-  // proxy_only indicates if true connections are only attempted using the
-  // proxy.
-  // server_list is the list of connections to attempt in priority order.
-  // server_count is the number of items in the server list.
-  XmppConnectionGenerator(talk_base::Task* parent,
-                          const ConnectionOptions* options,
-                          bool proxy_only,
-                          const ServerInformation* server_list,
-                          int server_count);
-  ~XmppConnectionGenerator();
-
-  // Only call this once. Create a new XmppConnectionGenerator and delete the
-  // current one if the process needs to start again.
-  void StartGenerating();
-
-  void UseNextConnection();
-  void UseCurrentConnection();
-
-  const talk_base::ProxyInfo& proxy() const;
-
-  sigslot::signal1<const ConnectionSettings&> SignalNewSettings;
-
-  // SignalExhaustedSettings(bool successfully_resolved_dns,
-  //                         int first_dns_error);
-  sigslot::signal2<bool, int> SignalExhaustedSettings;
-
- private:
-  void OnProxyDetect(talk_base::AutoDetectProxy* proxy_detect);
-  void OnServerDNSResolved(AsyncDNSLookup* dns_lookup);
-  void HandleExhaustedConnections();
-
-  talk_base::scoped_ptr<ConnectionSettingsList> settings_list_;
-  int settings_index_;  // The setting that is currently being used.
-  talk_base::scoped_array<ServerInformation> server_list_;
-  int server_count_;
-  int server_index_;  // The server that is current being used.
-  bool proxy_only_;
-  bool successfully_resolved_dns_;
-  int first_dns_error_;
-  const ConnectionOptions* options_;
-
-  talk_base::Task* parent_;
-  DISALLOW_COPY_AND_ASSIGN(XmppConnectionGenerator);
-};
-
-}  // namespace notifier
-
-#endif  // CHROME_BROWSER_SYNC_NOTIFIER_COMMUNICATOR_XMPP_CONNECTION_GENERATOR_H_