Use HTML messages to inform GAIA about deviceId.

chrome/browser/ui/webui/chromeos/login/gaia_screen_handler.h

 // Copyright 2013 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_UI_WEBUI_CHROMEOS_LOGIN_GAIA_SCREEN_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_GAIA_SCREEN_HANDLER_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 115 matching lines @@
                            bool using_saml);
 
   void HandleUsingSAMLAPI();
   void HandleScrapedPasswordCount(int password_count);
   void HandleScrapedPasswordVerificationFailed();
 
   void HandleGaiaUIReady();
 
   void HandleToggleEasyBootstrap();
 
+  void HandleAttemptLogin(const std::string& email);
+
   void HandleToggleWebviewSignin();
 
   // This is called when ConsumerManagementService::SetOwner() returns.
   void OnSetOwnerDone(const std::string& gaia_id,
                       const std::string& typed_email,
                       const std::string& password,
                       bool using_saml,
                       bool success);
 
   // Really handles the complete login message.
@@ skipping 115 matching lines @@
 
   // Non-owning ptr to SigninScreenHandler instance. Should not be used
   // in dtor.
   // TODO (antrim@): GaiaScreenHandler shouldn't communicate with
   // signin_screen_handler directly.
   SigninScreenHandler* signin_screen_handler_;
 
   // GAIA extension loader.
   scoped_ptr<ScopedGaiaAuthExtension> auth_extension_;
 
+  // Temporary DeviceId to be used for new users.
+  // (constant as Gaia screen is destroyed on successful login).
+  const std::string temporary_device_id_;
+
   base::WeakPtrFactory<GaiaScreenHandler> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(GaiaScreenHandler);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_GAIA_SCREEN_HANDLER_H_