Cleanup ContentSuggestions cells

ios/chrome/browser/ui/content_suggestions/content_suggestions_article_item.h

-// Copyright 2017 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_CONTENT_SUGGESTIONS_CONTENT_SUGGESTIONS_ARTICLE_ITEM_H_
-#define IOS_CHROME_BROWSER_UI_CONTENT_SUGGESTIONS_CONTENT_SUGGESTIONS_ARTICLE_ITEM_H_
-
-#import "ios/chrome/browser/ui/collection_view/cells/collection_view_item.h"
-#import "ios/chrome/browser/ui/content_suggestions/identifier/content_suggestion_identifier.h"
-#import "ios/third_party/material_components_ios/src/components/CollectionCells/src/MaterialCollectionCells.h"
-
-namespace base {
-class Time;
-}
-
-@class ContentSuggestionsArticleItem;
-class GURL;
-
-// Delegate for a ContentSuggestionsArticleItem.
-@protocol ContentSuggestionsArticleItemDelegate
-
-// Loads the image associated with this item.
-- (void)loadImageForArticleItem:(ContentSuggestionsArticleItem*)articleItem;
-
-@end
-
-// Item for an article in the suggestions.
-@interface ContentSuggestionsArticleItem
-    : CollectionViewItem<ContentSuggestionIdentification>
-
-// Initialize an article with a |title|, a |subtitle|, an |image| and the |url|
-// to the full article. |type| is the type of the item.
-- (instancetype)initWithType:(NSInteger)type
-                       title:(NSString*)title
-                    subtitle:(NSString*)subtitle
-                    delegate:(id<ContentSuggestionsArticleItemDelegate>)delegate
-                         url:(const GURL&)url NS_DESIGNATED_INITIALIZER;
-
-- (instancetype)initWithType:(NSInteger)type NS_UNAVAILABLE;
-
-@property(nonatomic, copy, readonly) NSString* title;
-@property(nonatomic, strong) UIImage* image;
-@property(nonatomic, readonly, assign) GURL articleURL;
-@property(nonatomic, copy) NSString* publisher;
-@property(nonatomic, assign) base::Time publishDate;
-@property(nonatomic, weak) id<ContentSuggestionsArticleItemDelegate> delegate;
-
-@end
-
-// Corresponding cell for an article in the suggestions.
-@interface ContentSuggestionsArticleCell : MDCCollectionViewCell
-
-@property(nonatomic, readonly, strong) UILabel* titleLabel;
-@property(nonatomic, readonly, strong) UILabel* subtitleLabel;
-@property(nonatomic, readonly, strong) UIImageView* imageView;
-
-- (void)setPublisherName:(NSString*)publisherName date:(base::Time)publishDate;
-
-@end
-
-#endif  // IOS_CHROME_BROWSER_UI_CONTENT_SUGGESTIONS_CONTENT_SUGGESTIONS_ARTICLE_ITEM_H_