ChromeOS login webui refactoring : Move GAIA-related code to gaia_screen_handler

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

Index: chrome/browser/ui/webui/chromeos/login/signin_screen_handler.h
diff --git a/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.h b/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.h
index 0056d2870364eb1add241b3171c3970008135a2d..1a121897aea89e370db22121a6116fe5c4d8a728 100644
--- a/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.h
+++ b/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.h
@@ -44,6 +44,7 @@ namespace chromeos {
 class AuthenticatedUserEmailRetriever;
 class CaptivePortalWindowProxy;
 class CoreOobeActor;
+class GaiaScreenHandler;
 class LocallyManagedUserCreationScreenHandler;
 class NativeWindowDelegate;
 class User;
@@ -252,8 +253,9 @@ class SigninScreenHandler
     UI_STATE_ACCOUNT_PICKER,
   };
 
-  friend class ReportDnsCacheClearedOnUIThread;
+  friend class GaiaScreenHandler;
   friend class LocallyManagedUserCreationScreenHandler;
+  friend class ReportDnsCacheClearedOnUIThread;
 
   void ShowImpl();
 
@@ -320,16 +322,6 @@ class SigninScreenHandler
       const std::string& username) const OVERRIDE;
   virtual void Unlock(const std::string& user_email) OVERRIDE;
 
-  // Shows signin screen after dns cache and cookie cleanup operations finish.
-  void ShowSigninScreenIfReady();
-
-  // Tells webui to load authentication extension. |force| is used to force the
-  // extension reloading, if it has already been loaded. |silent_load| is true
-  // for cases when extension should be loaded in the background and it
-  // shouldn't grab the focus. |offline| is true when offline version of the
-  // extension should be used.
-  void LoadAuthExtension(bool force, bool silent_load, bool offline);
-
   // Updates authentication extension. Called when device settings that affect
   // sign-in (allow BWSI and allow whitelist) are changed.
   void UserSettingsChanged();
@@ -339,16 +331,7 @@ class SigninScreenHandler
   void RefocusCurrentPod();
 
   // WebUI message handlers.
-  void HandleCompleteAuthentication(const std::string& email,
-                                    const std::string& password,
-                                    const std::string& auth_code);
-  void HandleCompleteLogin(const std::string& typed_email,
-                           const std::string& password,
-                           bool using_saml);
   void HandleGetUsers();
-  void HandleUsingSAMLAPI();
-  void HandleScrapedPasswordCount(int password_count);
-  void HandleScrapedPasswordVerificationFailed();
   void HandleAuthenticateUser(const std::string& username,
                               const std::string& password);
   void HandleAttemptUnlock(const std::string& username);
@@ -368,7 +351,6 @@ class SigninScreenHandler
   void HandleCreateAccount();
   void HandleAccountPickerReady();
   void HandleWallpaperReady();
-  void HandleLoginWebuiReady();
   void HandleSignOutUser();
   void HandleOpenProxySettings();
   void HandleLoginVisible(const std::string& source);
@@ -386,17 +368,6 @@ class SigninScreenHandler
   void HandleLaunchKioskApp(const std::string& app_id, bool diagnostic_mode);
   void HandleRetrieveAuthenticatedUserEmail(double attempt_token);
 
-  // Kick off cookie / local storage cleanup.
-  void StartClearingCookies(const base::Closure& on_clear_callback);
-  void OnCookiesCleared(base::Closure on_clear_callback);
-
-  // Kick off DNS cache flushing.
-  void StartClearingDnsCache();
-  void OnDnsCleared();
-
-  // Decides whether an auth extension should be pre-loaded. If it should,
-  // pre-loads it.
-  void MaybePreloadAuthExtension();
 
   // Returns true iff
   // (i)   log in is restricted to some user list,
@@ -427,8 +398,7 @@ class SigninScreenHandler
   // Returns true if offline login is allowed.
   bool IsOfflineLoginAllowed() const;
 
-  // Attempts login for test.
-  void SubmitLoginFormForTest();
+  bool ShouldLoadGaia() const;
 
   // Update current input method (namely keyboard layout) to LRU by this user.
   void SetUserInputMethod(const std::string& username);
@@ -438,12 +408,8 @@ class SigninScreenHandler
   // |state| indicates that enrollment is not applicable.
   void ContinueKioskEnableFlow(policy::AutoEnrollmentState state);
 
-  // Shows signin screen for |email|.
-  void OnShowAddUser(const std::string& email);
-
-  // Updates the member variable and UMA histogram indicating whether the
-  // principals API was used during SAML login.
-  void SetSAMLPrincipalsAPIUsed(bool api_used);
+  // Shows signin.
+  void OnShowAddUser();
 
   GaiaScreenHandler::FrameState FrameState() const;
   net::Error FrameError() const;
@@ -466,44 +432,12 @@ class SigninScreenHandler
   // Keeps whether screen should be shown for OOBE.
   bool oobe_ui_;
 
-  // Is focus still stolen from Gaia page?
-  bool focus_stolen_;
-
-  // Has Gaia page silent load been started for the current sign-in attempt?
-  bool gaia_silent_load_;
-
-  // The active network at the moment when Gaia page was preloaded.
-  std::string gaia_silent_load_network_;
-
   // Is account picker being shown for the first time.
   bool is_account_picker_showing_first_time_;
 
-  // True if dns cache cleanup is done.
-  bool dns_cleared_;
-
-  // True if DNS cache task is already running.
-  bool dns_clear_task_running_;
-
-  // True if cookie jar cleanup is done.
-  bool cookies_cleared_;
-
   // Network state informer used to keep signin screen up.
   scoped_refptr<NetworkStateInformer> network_state_informer_;
 
-  // Email to pre-populate with.
-  std::string email_;
-  // Emails of the users, whose passwords have recently been changed.
-  std::set<std::string> password_changed_for_;
-
-  // If the user authenticated via SAML, this indicates whether the principals
-  // API was used.
-  bool using_saml_api_;
-
-  // Test credentials.
-  std::string test_user_;
-  std::string test_pass_;
-  bool test_expects_complete_login_;
-
   base::WeakPtrFactory<SigninScreenHandler> weak_factory_;
 
   // Set to true once |LOGIN_WEBUI_VISIBLE| notification is observed.