cros: Break BaseScreenHandler into two classes.

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

 // Copyright (c) 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_SIGNIN_SCREEN_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_SIGNIN_SCREEN_HANDLER_H_
 
 #include <map>
 #include <memory>
 #include <set>
 #include <string>
 
 #include "ash/public/interfaces/touch_view.mojom.h"
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/containers/hash_tables.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/chromeos/login/screens/error_screen.h"
 #include "chrome/browser/chromeos/login/signin_specifics.h"
 #include "chrome/browser/chromeos/login/ui/login_display.h"
 #include "chrome/browser/chromeos/settings/cros_settings.h"
-#include "chrome/browser/ui/webui/chromeos/login/base_screen_handler.h"
+#include "chrome/browser/ui/webui/chromeos/login/base_webui_handler.h"
 #include "chrome/browser/ui/webui/chromeos/login/network_state_informer.h"
 #include "chrome/browser/ui/webui/chromeos/login/oobe_ui.h"
 #include "chromeos/dbus/power_manager_client.h"
 #include "chromeos/network/portal_detector/network_portal_detector.h"
 #include "components/proximity_auth/screenlock_bridge.h"
 #include "components/user_manager/user_manager.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/web_ui.h"
 #include "mojo/public/cpp/bindings/binding.h"
@@ skipping 176 matching lines @@
   // Returns true if user is allowed to log in by domain policy.
   virtual bool IsUserWhitelisted(const AccountId& account_id) = 0;
 
  protected:
   virtual ~SigninScreenHandlerDelegate() {}
 };
 
 // A class that handles the WebUI hooks in sign-in screen in OobeUI and
 // LoginDisplay.
 class SigninScreenHandler
-    : public BaseScreenHandler,
+    : public BaseWebUIHandler,
       public LoginDisplayWebUIHandler,
       public content::NotificationObserver,
       public NetworkStateInformer::NetworkStateInformerObserver,
       public PowerManagerClient::Observer,
       public input_method::ImeKeyboard::Observer,
       public ash::mojom::TouchViewObserver,
       public OobeUI::Observer {
  public:
   SigninScreenHandler(
       const scoped_refptr<NetworkStateInformer>& network_state_informer,
@@ skipping 303 matching lines @@
   std::unique_ptr<AccountId> focused_pod_account_id_;
 
   base::WeakPtrFactory<SigninScreenHandler> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(SigninScreenHandler);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_SIGNIN_SCREEN_HANDLER_H_