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diff --git a/chrome/browser/sync/notifier/gaia_auth/gaiaauth.h b/chrome/browser/sync/notifier/gaia_auth/gaiaauth.h
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+++ b/chrome/browser/sync/notifier/gaia_auth/gaiaauth.h
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+// 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.
+//
+// Gaia auth code for XMPP notifier support. This should be merged with
+// the other gaia auth file when we have time.
+
+#ifndef CHROME_BROWSER_SYNC_NOTIFIER_GAIA_AUTH_GAIAAUTH_H_
+#define CHROME_BROWSER_SYNC_NOTIFIER_GAIA_AUTH_GAIAAUTH_H_
+
+#include <string>
+#include <vector>
+
+#include "chrome/browser/sync/notifier/gaia_auth/gaiahelper.h"
+#include "talk/base/cryptstring.h"
+#include "talk/base/messagequeue.h"
+#include "talk/base/proxyinfo.h"
+#include "talk/xmpp/prexmppauth.h"
+
+namespace talk_base {
+class FirewallManager;
+class SignalThread;
+}
+
+namespace buzz {
+
+///////////////////////////////////////////////////////////////////////////////
+// GaiaAuth
+///////////////////////////////////////////////////////////////////////////////
+
+class GaiaAuth : public PreXmppAuth, public sigslot::has_slots<> {
+ public:
+  GaiaAuth(const std::string& user_agent, const std::string& signature);
+  virtual ~GaiaAuth();
+
+  void set_proxy(const talk_base::ProxyInfo& proxy) {
+    proxy_ = proxy;
+  }
+  void set_firewall(talk_base::FirewallManager* firewall) {
+    firewall_ = firewall;
+  }
+  void set_captcha_answer(const CaptchaAnswer& captcha_answer) {
+    captcha_answer_ = captcha_answer;
+  }
+
+  // From inside XMPP login, this is called
+  virtual void StartPreXmppAuth(const buzz::Jid& jid,
+                                const talk_base::SocketAddress& server,
+                                const talk_base::CryptString& pass,
+                                const std::string& auth_cookie);
+
+  void StartTokenAuth(const buzz::Jid& jid,
+                      const talk_base::CryptString& pass,
+                      const std::string& service);
+
+  // This is used when calling GetAuth()
+  void StartAuth(const buzz::Jid& jid,
+                 const talk_base::CryptString& pass,
+                 const std::string& service);
+
+  // This is used when bootstrapping from a download page
+  void StartAuthFromSid(const buzz::Jid& jid,
+                        const std::string& sid,
+                        const std::string& service);
+
+  virtual bool IsAuthDone();
+  virtual bool IsAuthorized();
+  virtual bool HadError();
+  virtual int GetError();
+  virtual buzz::CaptchaChallenge GetCaptchaChallenge();
+  // Returns the auth token that can be sent in an url param to gaia in order
+  // to generate an auth cookie.
+  virtual std::string GetAuthCookie();
+
+  // Returns the auth cookie for gaia.
+  std::string GetAuth();
+  std::string GetSID();
+
+  // Sets / gets the token service to use.
+  std::string token_service() const { return token_service_; }
+  void set_token_service(const std::string& token_service) {
+    token_service_ = token_service;
+  }
+
+  virtual std::string ChooseBestSaslMechanism(
+      const std::vector<std::string>& mechanisms, bool encrypted);
+  virtual buzz::SaslMechanism* CreateSaslMechanism(
+      const std::string& mechanism);
+
+  std::string CreateAuthenticatedUrl(const std::string& continue_url,
+      const std::string& service);
+
+  sigslot::signal0<> SignalAuthenticationError;
+  sigslot::signal0<> SignalCertificateExpired;
+  sigslot::signal1<const std::string&> SignalFreshAuthCookie;
+
+ private:
+  void OnAuthDone(talk_base::SignalThread* worker);
+
+  void InternalStartGaiaAuth(const buzz::Jid& jid,
+                             const talk_base::SocketAddress& server,
+                             const talk_base::CryptString& pass,
+                             const std::string& sid,
+                             const std::string& service,
+                             bool obtain_auth);
+
+  std::string agent_;
+  std::string signature_;
+  talk_base::ProxyInfo proxy_;
+  talk_base::FirewallManager* firewall_;
+  class WorkerThread;
+  WorkerThread* worker_;
+  bool done_;
+
+  CaptchaAnswer captcha_answer_;
+  std::string token_service_;
+};
+
+///////////////////////////////////////////////////////////////////////////////
+// Globals
+///////////////////////////////////////////////////////////////////////////////
+
+extern GaiaServer g_gaia_server;
+
+///////////////////////////////////////////////////////////////////////////////
+
+}  // namespace buzz
+
+#endif  // CHROME_BROWSER_SYNC_NOTIFIER_GAIA_AUTH_GAIAAUTH_H_