[Clean Skeleton] Migrate code to clean/

ios/clean/chrome/app/application_phase.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_APPLICATION_PHASE_H_
-#define IOS_CHROME_APP_APPLICATION_PHASE_H_
+#ifndef IOS_CLEAN_CHROME_APP_APPLICATION_PHASE_H_
+#define IOS_CLEAN_CHROME_APP_APPLICATION_PHASE_H_
 
 // The phases that the application moves through as it transitions between
 // states.
 typedef NS_ENUM(NSUInteger, ApplicationPhase) {
   // The initial state of the application performing a cold launch.
   APPLICATION_COLD,
   // The minimal initialization that must be completed before any further
   // startup can happen. |applicationDidFinishLaunching:withOptions:| must
   // bring the appication to at least this phase before returning.
   APPLICATION_BASIC,
   // The phase required for any background handling.
   APPLICATION_BACKGROUNDED,
   // The phase where the app is foregrounded but Safe Mode has been started.
   APPLICATION_SAFE_MODE,
   // The phase where the app is fully foregrounded and the regular UI has
   // started.
   APPLICATION_FOREGROUNDED,
   // The phase where the application has started to terminate.
   APPLICATION_TERMINATING
 };
 
-#endif  // IOS_CHROME_APP_APPLICATION_PHASE_H_
+#endif  // IOS_CLEAN_CHROME_APP_APPLICATION_PHASE_H_