[Clean Skeleton] Migrate code to clean/

ios/chrome/browser/ui/strip/strip_container_view_controller.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_BROWSER_UI_STRIP_STRIP_CONTAINER_VIEW_CONTROLLER_H_
-#define IOS_CHROME_BROWSER_UI_STRIP_STRIP_CONTAINER_VIEW_CONTROLLER_H_
-
-#import <UIKit/UIKit.h>
-
-// Base class for a view controller that contains a content view (generally a
-// web view with toolbar, but nothing in this class assumes that) and a strip
-// view, each managed by their own view controllers.
-@interface StripContainerViewController : UIViewController
-
-// View controller showing the main content. If there is no strip view
-// controller set, the contents of this view controller will fill all of the
-// strip container's view.
-@property(nonatomic, strong) UIViewController* contentViewController;
-
-// View controller showing the strip. It will be of a fixed
-// height (determined internally by the strip container), but will span the
-// width of the tab.
-@property(nonatomic, strong) UIViewController* stripViewController;
-
-@end
-
-#endif  // IOS_CHROME_BROWSER_UI_STRIP_STRIP_CONTAINER_VIEW_CONTROLLER_H_