When a user logs into sync, the appropriate cookies are retrieved so that

chrome/common/net/gaia/gaia_auth_fetcher.h

 // Copyright (c) 2011 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_COMMON_NET_GAIA_GAIA_AUTH_FETCHER_H_
 #define CHROME_COMMON_NET_GAIA_GAIA_AUTH_FETCHER_H_
 #pragma once
 
 #include <string>
 
@@ skipping 50 matching lines @@
                            const std::string& lsid,
                            const char* const service);
 
   // Start a request to get a particular key from user info.
   // GaiaAuthConsumer will be called back on the same thread when
   // results come back.
   // You can't make more than one request at a time.
   void StartGetUserInfo(const std::string& lsid,
                         const std::string& info_key);
 
+  // Start a TokenAuth request to pre-login the user with the given credentials.
+  void StartTokenAuth(const std::string& auth_token);
+
   // Implementation of URLFetcher::Delegate
   virtual void OnURLFetchComplete(const URLFetcher* source,
                                   const GURL& url,
                                   const net::URLRequestStatus& status,
                                   int response_code,
                                   const net::ResponseCookies& cookies,
                                   const std::string& data);
 
   // StartClientLogin been called && results not back yet?
   bool HasPendingFetch();
 
   // Stop any URL fetches in progress.
   void CancelRequest();
 
  private:
   // ClientLogin body constants that don't change
   static const char kCookiePersistence[];
   static const char kAccountTypeHostedOrGoogle[];
   static const char kAccountTypeGoogle[];
 
   // The format of the POST body for ClientLogin.
   static const char kClientLoginFormat[];
   // The format of said POST body when CAPTCHA token & answer are specified.
   static const char kClientLoginCaptchaFormat[];
   // The format of the POST body for IssueAuthToken.
   static const char kIssueAuthTokenFormat[];
-  // The format of the POSt body for GetUserInfo.
+  // The format of the POST body for GetUserInfo.
   static const char kGetUserInfoFormat[];
+  // The format of the POST body for TokenAuth.
+  static const char kTokenAuthFormat[];
 
   // Constants for parsing ClientLogin errors.
   static const char kAccountDeletedError[];
   static const char kAccountDisabledError[];
   static const char kBadAuthenticationError[];
   static const char kCaptchaError[];
   static const char kServiceUnavailableError[];
   static const char kErrorParam[];
   static const char kErrorUrlParam[];
   static const char kCaptchaUrlParam[];
   static const char kCaptchaTokenParam[];
 
   // Process the results of a ClientLogin fetch.
   void OnClientLoginFetched(const std::string& data,
                             const net::URLRequestStatus& status,
                             int response_code);
 
   void OnIssueAuthTokenFetched(const std::string& data,
                                const net::URLRequestStatus& status,
                                int response_code);
 
   void OnGetUserInfoFetched(const std::string& data,
                             const net::URLRequestStatus& status,
                             int response_code);
 
+  void OnTokenAuthFetched(const std::string& data,
+                          const net::URLRequestStatus& status,
+                          int response_code);
+
   // Tokenize the results of a ClientLogin fetch.
   static void ParseClientLoginResponse(const std::string& data,
                                        std::string* sid,
                                        std::string* lsid,
                                        std::string* token);
 
   static void ParseClientLoginFailure(const std::string& data,
                                       std::string* error,
                                       std::string* error_url,
                                       std::string* captcha_url,
@@ skipping 20 matching lines @@
       HostedAccountsSetting allow_hosted_accounts);
   // Supply the sid / lsid returned from ClientLogin in order to
   // request a long lived auth token for a service.
   static std::string MakeIssueAuthTokenBody(const std::string& sid,
                                             const std::string& lsid,
                                             const char* const service);
   // Supply the lsid returned from ClientLogin in order to fetch
   // user information.
   static std::string MakeGetUserInfoBody(const std::string& lsid);
 
+  // Supply the authentication token returned from StartIssueAuthToken.
+  static std::string MakeTokenAuthBody(const std::string& auth_token,
+                                       const std::string& continue_url,
+                                       const std::string& source);
+
   // Create a fetcher useable for making any Gaia request.
   static URLFetcher* CreateGaiaFetcher(net::URLRequestContextGetter* getter,
                                        const std::string& body,
                                        const GURL& gaia_gurl_,
                                        URLFetcher::Delegate* delegate);
 
 
   // These fields are common to GaiaAuthFetcher, same every request
   GaiaAuthConsumer* const consumer_;
   net::URLRequestContextGetter* const getter_;
   std::string source_;
   const GURL client_login_gurl_;
   const GURL issue_auth_token_gurl_;
   const GURL get_user_info_gurl_;
+  const GURL token_auth_gurl_;
 
   // While a fetch is going on:
   scoped_ptr<URLFetcher> fetcher_;
   std::string request_body_;
   std::string requested_service_;   // Currently tracked for IssueAuthToken only
   std::string requested_info_key_;  // Currently tracked for GetUserInfo only
   bool fetch_pending_;
 
   friend class GaiaAuthFetcherTest;
   FRIEND_TEST_ALL_PREFIXES(GaiaAuthFetcherTest, CaptchaParse);
   FRIEND_TEST_ALL_PREFIXES(GaiaAuthFetcherTest, AccountDeletedError);
   FRIEND_TEST_ALL_PREFIXES(GaiaAuthFetcherTest, AccountDisabledError);
   FRIEND_TEST_ALL_PREFIXES(GaiaAuthFetcherTest, BadAuthenticationError);
   FRIEND_TEST_ALL_PREFIXES(GaiaAuthFetcherTest, IncomprehensibleError);
   FRIEND_TEST_ALL_PREFIXES(GaiaAuthFetcherTest, ServiceUnavailableError);
   FRIEND_TEST_ALL_PREFIXES(GaiaAuthFetcherTest, CheckNormalErrorCode);
   FRIEND_TEST_ALL_PREFIXES(GaiaAuthFetcherTest, CheckTwoFactorResponse);
   FRIEND_TEST_ALL_PREFIXES(GaiaAuthFetcherTest, LoginNetFailure);
 
   DISALLOW_COPY_AND_ASSIGN(GaiaAuthFetcher);
 };
 
 #endif  // CHROME_COMMON_NET_GAIA_GAIA_AUTH_FETCHER_H_