Properly handle accounts that don't have GMail.

remoting/host/gaia_oauth_client.h

 // Copyright (c) 2012 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 REMOTING_HOST_GAIA_OAUTH_CLIENT_H_
 #define REMOTING_HOST_GAIA_OAUTH_CLIENT_H_
 
 #include <string>
 
 #include "base/memory/ref_counted.h"
@@ skipping 19 matching lines @@
   std::string client_secret;
 };
 
 class GaiaOAuthClient {
  public:
   class Delegate {
    public:
     virtual ~Delegate() { }
 
     // Invoked on a successful response to the RefreshToken request.
-    virtual void OnRefreshTokenResponse(const std::string& access_token,
+    virtual void OnRefreshTokenResponse(const std::string& email,

[Wez, 2012/05/16 23:00:07]

nit: email -> user_email?

[Sergey Ulanov, 2012/05/17 00:38:11]

Done.

+                                        const std::string& access_token,
                                         int expires_in_seconds) = 0;
     // Invoked when there is an OAuth error with one of the requests.
     virtual void OnOAuthError() = 0;
     // Invoked when there is a network error or upon receiving an
     // invalid response.
     virtual void OnNetworkError(int response_code) = 0;
   };
   GaiaOAuthClient(const std::string& gaia_url,
                   net::URLRequestContextGetter* context_getter);
   ~GaiaOAuthClient();
 
   void RefreshToken(const OAuthClientInfo& oauth_client_info,
                     const std::string& refresh_token,
                     Delegate* delegate);
 
  private:
   // The guts of the implementation live in this class.
   class Core;
   scoped_refptr<Core> core_;
   DISALLOW_COPY_AND_ASSIGN(GaiaOAuthClient);
 };
 
 }  // namespace remoting
 
 #endif  // CHROME_COMMON_NET_GAIA_GAIA_OAUTH_CLIENT_H_