[Clean Skeleton] Migrate code to clean/

ios/clean/chrome/app/steps/launch_to_background.h

 // Copyright 2016 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.
 
 // ======                        New Architecture                         =====
 // =         This code is only used in the new iOS Chrome architecture.       =
 // ============================================================================
 
-#ifndef IOS_CHROME_APP_STEPS_LAUNCH_TO_BACKGROUND_H_
-#define IOS_CHROME_APP_STEPS_LAUNCH_TO_BACKGROUND_H_
+#ifndef IOS_CLEAN_CHROME_APP_STEPS_LAUNCH_TO_BACKGROUND_H_
+#define IOS_CLEAN_CHROME_APP_STEPS_LAUNCH_TO_BACKGROUND_H_
 
 #import <Foundation/Foundation.h>
 
-#include "ios/chrome/app/application_step.h"
+#import "ios/clean/chrome/app/application_step.h"
 
 // This file includes ApplicationStep objects that perform the steps that bring
 // the application up to the background phase of launching.
 
 // Sets up the user defaults and application bundle.
 //  Pre:  Application phase is APPLICATION_BASIC.
 //  Post: Application phase is (still) APPLICATION_BASIC.
 @interface SetupBundleAndUserDefaults : NSObject<ApplicationStep>
 @end
 
 // Starts the ChromeMain object and sets the global WebClient object.
 //  Pre:  Application phase is APPLICATION_BASIC.
 //  Post: Application phase is APPLICATION_BACKGROUNDED.
 @interface StartChromeMain : NSObject<ApplicationStep>
 @end
 
 // Sets the browserState property in the ApplicationState.
 //  Pre:  Application phase is APPLICATION_BACKGROUNDED and a browser state
 //        manager is available.
 //  Post: Application phase is (still) APPLICATION_BACKGROUNDED.
 @interface SetBrowserState : NSObject<ApplicationStep>
 @end
 
-#endif  // IOS_CHROME_APP_STEPS_LAUNCH_TO_BACKGROUND_H_
+#endif  // IOS_CLEAN_CHROME_APP_STEPS_LAUNCH_TO_BACKGROUND_H_