Add IssueAuthToken and unit tests to GaiaAuthenticator2.

chrome/common/net/gaia/gaia_auth_consumer.h

 // Copyright (c) 2010 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_CONSUMER_H_
 #define CHROME_COMMON_NET_GAIA_GAIA_AUTH_CONSUMER_H_
 
 #include <string>
 
 // An interface that defines the callbacks for objects that
@@ skipping 18 matching lines @@
              data == b.data;
     }
 
     std::string sid;
     std::string lsid;
     std::string token;
     // TODO(chron): Remove the data field later. Don't use it if possible.
     std::string data;  // Full contents of ClientLogin return.
   };
 
-  enum ClientLoginErrorCode {
+  enum GaiaAuthErrorCode {
     NETWORK_ERROR,
     REQUEST_CANCELED,
     TWO_FACTOR,  // Callers can treat this as a success.
     PERMISSION_DENIED
   };
 
-  struct ClientLoginError {
-    inline bool operator==(const ClientLoginError &b) const {
+  struct GaiaAuthError {
+    inline bool operator==(const GaiaAuthError &b) const {
       if (code != b.code) {
         return false;
       }
       if (code == NETWORK_ERROR) {
         return network_error == b.network_error;
       }
       return true;
     }
 
-    ClientLoginErrorCode code;
+    GaiaAuthErrorCode code;
     int network_error;  // This field is only valid if NETWORK_ERROR occured.
     std::string data;  // TODO(chron): Remove this field. Should preparse data.
   };
 
   virtual ~GaiaAuthConsumer() {}
-  virtual void OnClientLoginFailure(const ClientLoginError& error) = 0;
-  virtual void OnClientLoginSuccess(const ClientLoginResult& result) = 0;
+
+  virtual void OnClientLoginSuccess(const ClientLoginResult& result) {}
+  virtual void OnClientLoginFailure(const GaiaAuthError& error) {}
+
+  virtual void OnIssueAuthTokenSuccess(const std::string& service,
+                                       const std::string& auth_token) {}
+  virtual void OnIssueAuthTokenFailure(const std::string& service,
+                                       const GaiaAuthError& error) {}
 };
 
 #endif  // CHROME_COMMON_NET_GAIA_GAIA_AUTH_CONSUMER_H_