cros: Move call js prefix out of ctor.

chrome/browser/ui/webui/chromeos/login/kiosk_autolaunch_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_KIOSK_AUTOLAUNCH_SCREEN_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_KIOSK_AUTOLAUNCH_SCREEN_HANDLER_H_
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "chrome/browser/chromeos/app_mode/kiosk_app_manager_observer.h"
@@ skipping 29 matching lines @@
 
  private:
   // Updates auto-start UI assets on JS side.
   void UpdateKioskApp();
 
   // JS messages handlers.
   void HandleOnCancel();
   void HandleOnConfirm();
   void HandleOnVisible();
 
-  Delegate* delegate_;
+  Delegate* delegate_ = nullptr;
 
   // Keeps whether screen should be shown right after initialization.
-  bool show_on_init_;
-  bool is_visible_;
+  bool show_on_init_ = false;
+  bool is_visible_ = false;
 
   DISALLOW_COPY_AND_ASSIGN(KioskAutolaunchScreenHandler);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_KIOSK_AUTOLAUNCH_SCREEN_HANDLER_H_