[Clean Skeleton] Migrate code to clean/

ios/chrome/app/steps/launch_to_foreground.mm

-// 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.       =
-// ============================================================================
-
-#import "ios/chrome/app/steps/launch_to_foreground.h"
-
-#include "components/content_settings/core/browser/host_content_settings_map.h"
-#include "ios/chrome/app/application_state.h"
-#include "ios/chrome/browser/application_context.h"
-#include "ios/chrome/browser/browser_state/chrome_browser_state.h"
-#include "ios/chrome/browser/content_settings/host_content_settings_map_factory.h"
-#include "ios/web/public/web_capabilities.h"
-#include "ios/web/public/web_thread.h"
-
-#if !defined(__has_feature) || !__has_feature(objc_arc)
-#error "This file requires ARC support."
-#endif
-
-// Temporary class to trigger URL-opening events from a shake gesture.
-@interface ShakeCatchingWindow : UIWindow
-@end
-
-@implementation BeginForegrounding
-
-- (BOOL)canRunInState:(ApplicationState*)state {
-  return state.phase == APPLICATION_BACKGROUNDED;
-}
-
-- (void)runInState:(ApplicationState*)state {
-  GetApplicationContext()->OnAppEnterForeground();
-}
-
-@end
-
-@implementation PrepareForUI
-
-- (BOOL)canRunInState:(ApplicationState*)state {
-  return state.phase == APPLICATION_BACKGROUNDED;
-}
-
-- (void)runInState:(ApplicationState*)state {
-  state.window =
-      [[ShakeCatchingWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
-  [state.window makeKeyWindow];
-}
-
-@end
-
-@implementation CompleteForegrounding
-- (BOOL)canRunInState:(ApplicationState*)state {
-  return state.window.keyWindow && state.phase == APPLICATION_BACKGROUNDED;
-}
-
-- (void)runInState:(ApplicationState*)state {
-  state.phase = APPLICATION_FOREGROUNDED;
-}
-
-@end
-
-@implementation ShakeCatchingWindow
-
-#pragma mark - UIResponder
-
-- (void)motionEnded:(UIEventSubtype)motion withEvent:(UIEvent*)event {
-  if (motion == UIEventSubtypeMotionShake) {
-    UIApplication* app = [UIApplication sharedApplication];
-    [app.delegate application:app
-                      openURL:[NSURL URLWithString:@"https://www.google.com"]
-                      options:@{}];
-  }
-  [super motionEnded:motion withEvent:event];
-}
-
-@end