ContentSuggestionsDataSource returns CollectionViewItem

ios/chrome/browser/ui/content_suggestions/cells/suggested_content.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_CELLS_SUGGESTED_CONTENT_H_
+#define IOS_CHROME_BROWSER_UI_CONTENT_SUGGESTIONS_CELLS_SUGGESTED_CONTENT_H_
+
+#import <UIKit/UIKit.h>
+
+@class CollectionViewItem;
+@class ContentSuggestionIdentifier;
+@class FaviconAttributes;
+@protocol SuggestedContent;
+
+// Delegate for SuggestedContent.
+@protocol SuggestedContentDelegate
+
+// Loads the image associated with the |suggestedItem|.
+- (void)loadImageForSuggestedItem:
+    (CollectionViewItem<SuggestedContent>*)suggestedItem;
+
+@end
+
+// Behavior shared by the items in ContentSuggestions.
+@protocol SuggestedContent
+
+@property(nonatomic, weak) id<SuggestedContentDelegate> delegate;
+// Image associated with this content.
+@property(nonatomic, strong) UIImage* image;
+// Attributes for favicon.
+@property(nonatomic, strong) FaviconAttributes* attributes;
+// Identifier for this content.
+@property(nonatomic, strong) ContentSuggestionIdentifier* suggestionIdentifier;
+
+@end
+
+#endif  // IOS_CHROME_BROWSER_UI_CONTENT_SUGGESTIONS_CELLS_SUGGESTED_CONTENT_H_