cros: Break BaseScreenHandler into two classes.

chrome/browser/ui/webui/chromeos/login/kiosk_autolaunch_screen_handler.cc

 // 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.
 
 #include "chrome/browser/ui/webui/chromeos/login/kiosk_autolaunch_screen_handler.h"
 
 #include <string>
 
 #include "base/command_line.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 14 matching lines @@
 #include "ui/base/webui/web_ui_util.h"
 
 namespace {
 
 const char kJsScreenPath[] = "login.AutolaunchScreen";
 
 }  // namespace
 
 namespace chromeos {
 
-KioskAutolaunchScreenHandler::KioskAutolaunchScreenHandler() {
+KioskAutolaunchScreenHandler::KioskAutolaunchScreenHandler()
+    : BaseScreenHandler(kScreenId) {
   set_call_js_prefix(kJsScreenPath);
   KioskAppManager::Get()->AddObserver(this);
 }
 
 KioskAutolaunchScreenHandler::~KioskAutolaunchScreenHandler() {
   if (delegate_)
     delegate_->OnViewDestroyed(this);
 
   KioskAppManager::Get()->RemoveObserver(this);
 }
 
 void KioskAutolaunchScreenHandler::Show() {
   if (!page_is_ready()) {
     show_on_init_ = true;
     return;
   }
   UpdateKioskApp();
-  ShowScreen(OobeScreen::SCREEN_KIOSK_AUTOLAUNCH);
+  ShowScreen(kScreenId);
 }
 
 void KioskAutolaunchScreenHandler::SetDelegate(Delegate* delegate) {
   delegate_ = delegate;
   if (page_is_ready())
     Initialize();
 }
 
 void KioskAutolaunchScreenHandler::UpdateKioskApp() {
   if (!is_visible_)
@@ skipping 86 matching lines @@
 void KioskAutolaunchScreenHandler::OnKioskAppsSettingsChanged() {
   UpdateKioskApp();
 }
 
 void KioskAutolaunchScreenHandler::OnKioskAppDataChanged(
     const std::string& app_id) {
   UpdateKioskApp();
 }
 
 }  // namespace chromeos