Create a MostVisited cell for ContentSuggestions

ios/chrome/browser/ui/content_suggestions/cells/content_suggestions_most_visited_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_CELLS_CONTENT_SUGGESTIONS_MOST_VISITED_ITEM_H_
+#define IOS_CHROME_BROWSER_UI_CONTENT_SUGGESTIONS_CELLS_CONTENT_SUGGESTIONS_MOST_VISITED_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"
+
+@class ContentSuggestionsMostVisited;
+@class FaviconAttributes;
+
+// Item containing the Most Visited suggestions.
+@interface ContentSuggestionsMostVisitedItem
+    : CollectionViewItem<ContentSuggestionIdentification>
+
+// Most Visited suggestions for this item.
+@property(nonatomic, copy, nonnull)
+    NSArray<ContentSuggestionsMostVisited*>* mostVisiteds;

[stkhapugin, 2017/04/07 12:17:58]

mostVisitedItems or mostVisitedSuggestions

[lpromero, 2017/04/07 12:46:56]

Or |suggestions|?

[gambard, 2017/04/10 11:49:16]

Done.

+
+@end
+
+// Associated cell to display the Most Visited suggestions.
+@interface ContentSuggestionsMostVisitedCell : MDCCollectionViewCell

[stkhapugin, 2017/04/07 12:17:58]

nit: If you plan to add more logic into this class in the future, consider
splitting out a custom view that just takes an array of most visited tiles and
displays it properly, encapsulating all the layout logic, that you just put
inside this cell. Right now it seems like this class is pretty much doing
exactly that, but it'd be nice for it to not do anything else in the future
either. 

[gambard, 2017/04/10 11:49:16]

The only logic I am planing to add to this cell is a way to display it on one
line only if needed. I think it fits in.

+
+// Sets the Most Visited suggestions of this cell.
+- (void)setMostVisiteds:

[lpromero, 2017/04/07 12:46:56]

Idem.

[gambard, 2017/04/10 11:49:16]

Done.

+    (nonnull NSArray<ContentSuggestionsMostVisited*>*)mostVisiteds;
+
+@end
+
+#endif  // IOS_CHROME_BROWSER_UI_CONTENT_SUGGESTIONS_CELLS_CONTENT_SUGGESTIONS_MOST_VISITED_ITEM_H_