Upstream Chrome on iOS source code [7/11].

ios/chrome/browser/ui/settings/cells/byo_textfield_item.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.
+
+#ifndef IOS_CHROME_BROWSER_UI_SETTINGS_CELLS_BYO_TEXTFIELD_ITEM_H_
+#define IOS_CHROME_BROWSER_UI_SETTINGS_CELLS_BYO_TEXTFIELD_ITEM_H_
+
+#import <UIKit/UIKit.h>
+
+#import "ios/chrome/browser/ui/collection_view/cells/collection_view_item.h"
+#import "ios/third_party/material_components_ios/src/components/CollectionCells/src/MaterialCollectionCells.h"
+
+// Bring-your-own-text-field: Item that hosts a text field provided by the user
+// of this class.
+// Useful for adding a text field to a collection view, where the view may
+// be scrolled out of view and back in.  By using this object, even if the
+// collection view cell containing the text field is cleared and reused, the
+// user-entered content remains unchanged by using the same text field.
+// Not recommended for large models, as the text field is not reused.
+@interface BYOTextFieldItem : CollectionViewItem
+
+// The text field that will be installed in the cell during -configureCell:.
+@property(nonatomic, strong) UITextField* textField;
+
+@end
+
+// Cell class associated to BYOTextFieldItem.
+@interface BYOTextFieldCell : MDCCollectionViewCell
+@end
+
+#endif  // IOS_CHROME_BROWSER_UI_SETTINGS_CELLS_BYO_TEXTFIELD_ITEM_H_