[Clean Skeleton] Migrate code to clean/

ios/chrome/browser/ui/tab/tab_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_TAB_TAB_CONTAINER_VIEW_CONTROLLER_H_
-#define IOS_CHROME_BROWSER_UI_TAB_TAB_CONTAINER_VIEW_CONTROLLER_H_
-
-#import <UIKit/UIKit.h>
-
-#import "ios/chrome/browser/ui/presenters/menu_presentation_delegate.h"
-
-// Base class for a view controller that contains a content view (generally
-// some kind of web view, but nothing in this class assumes that) and a toolbar
-// view, each managed by their own view controllers.
-// Subclasses manage the specific layout of these view controllers.
-@interface TabContainerViewController
-    : UIViewController<MenuPresentationDelegate>
-
-// View controller showing the main content for the tab. If there is no
-// toolbar view controller set, the contents of this view controller will
-// fill all of the tab container's view.
-@property(nonatomic, strong) UIViewController* contentViewController;
-
-// View controller showing the toolbar for the tab. It will be of a fixed
-// height (determined internally by the tab container), but will span the
-// width of the tab.
-@property(nonatomic, strong) UIViewController* toolbarViewController;
-
-@end
-
-// Tab container which positions the toolbar at the top.
-@interface TopToolbarTabViewController : TabContainerViewController
-@end
-
-// Tab container which positions the toolbar at the bottom.
-@interface BottomToolbarTabViewController : TabContainerViewController
-@end
-
-#endif  // IOS_CHROME_BROWSER_UI_TAB_TAB_CONTAINER_VIEW_CONTROLLER_H_