[Clean Skeleton] Migrate code to clean/

ios/chrome/app/steps/launch_to_background.h

Index: ios/chrome/app/steps/launch_to_background.h
diff --git a/ios/chrome/app/steps/launch_to_background.h b/ios/chrome/app/steps/launch_to_background.h
deleted file mode 100644
index 8b63e2b3e63130f07531aec096c0c6ac3efcacae..0000000000000000000000000000000000000000
--- a/ios/chrome/app/steps/launch_to_background.h
+++ /dev/null
@@ -1,38 +0,0 @@
-// 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_
-
-#import <Foundation/Foundation.h>
-
-#include "ios/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_