cros: Remove usage of GaiaScreenHandler outside of login/webui.

chrome/browser/chromeos/login/signin_screen_controller.cc

 // 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.
 
 #include "chrome/browser/chromeos/login/signin_screen_controller.h"
 
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/chromeos/login/lock/screen_locker.h"
 #include "chrome/browser/chromeos/login/lock/webui_screen_locker.h"
 #include "chrome/browser/chromeos/login/screens/chrome_user_selection_screen.h"
 #include "chrome/browser/chromeos/login/ui/views/user_board_view.h"
 #include "chrome/browser/ui/webui/chromeos/login/oobe_ui.h"
 #include "chrome/browser/ui/webui/chromeos/login/signin_screen_handler.h"
 
 namespace chromeos {
 
 SignInScreenController* SignInScreenController::instance_ = nullptr;
 
 SignInScreenController::SignInScreenController(
     OobeUI* oobe_ui,
     LoginDisplay::Delegate* login_display_delegate)
     : oobe_ui_(oobe_ui), gaia_screen_(new GaiaScreen()) {
   DCHECK(!instance_);
   instance_ = this;
 
-  gaia_screen_->SetScreenHandler(oobe_ui_->GetGaiaScreenView());
+  gaia_screen_->set_view(oobe_ui_->GetGaiaScreenView());
   std::string display_type = oobe_ui->display_type();
   user_selection_screen_.reset(new ChromeUserSelectionScreen(display_type));
   user_selection_screen_->SetLoginDisplayDelegate(login_display_delegate);
 
   user_board_view_ = oobe_ui_->GetUserBoardView()->GetWeakPtr();
   user_selection_screen_->SetView(user_board_view_.get());
   // TODO(jdufault): Bind and Unbind should be controlled by either the
   // Model/View which are then each responsible for automatically unbinding the
   // other associated View/Model instance. Then we can eliminate this exposed
   // WeakPtr logic. See crbug.com/685287.
@@ skipping 47 matching lines @@
   user_selection_screen_->HandleGetUsers();
 }
 
 void SignInScreenController::CheckUserStatus(const AccountId& account_id) {
   user_selection_screen_->CheckUserStatus(account_id);
 }
 
 void SignInScreenController::SetWebUIHandler(
     LoginDisplayWebUIHandler* webui_handler) {
   webui_handler_ = webui_handler;
-  gaia_screen_->SetLegacyHandler(webui_handler_);
   user_selection_screen_->SetHandler(webui_handler_);
 }
 
 void SignInScreenController::Observe(
     int type,
     const content::NotificationSource& source,
     const content::NotificationDetails& details) {
   DCHECK_EQ(chrome::NOTIFICATION_SESSION_STARTED, type);
 
   // Stop listening to any notification once session has started.
   // Sign in screen objects are marked for deletion with DeleteSoon so
   // make sure no object would be used after session has started.
   // http://crbug.com/125276
   registrar_.RemoveAll();
   user_manager::UserManager::Get()->RemoveObserver(this);
 }
 
 }  // namespace chromeos