Create a MostVisited cell for ContentSuggestions

ios/chrome/browser/ui/content_suggestions/cells/content_suggestions_most_visited_item.h

Index: ios/chrome/browser/ui/content_suggestions/cells/content_suggestions_most_visited_item.h
diff --git a/ios/chrome/browser/ui/content_suggestions/cells/content_suggestions_most_visited_item.h b/ios/chrome/browser/ui/content_suggestions/cells/content_suggestions_most_visited_item.h
new file mode 100644
index 0000000000000000000000000000000000000000..1808434631144bb7521621dec0aed336d88c1acf
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+++ b/ios/chrome/browser/ui/content_suggestions/cells/content_suggestions_most_visited_item.h
@@ -0,0 +1,40 @@
+// 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*>* suggestions;
+
+@end
+
+// Associated cell to display the Most Visited suggestions.
+// This cell displays the most visited suggestions on two rows, vertically
+// stacked. Each row is a horizontal stack of ContentSuggestionsTiles. The
+// number of tiles per row depends of the available width.
+@interface ContentSuggestionsMostVisitedCell : MDCCollectionViewCell
+
+// Sets the Most Visited suggestions of this cell.
+- (void)setSuggestions:
+    (nonnull NSArray<ContentSuggestionsMostVisited*>*)suggestions;
+
+// Returns the maximum number of tiles per line, limited to 4.
+- (NSUInteger)numberOfTilesPerLine;
+
+@end
+
+#endif  // IOS_CHROME_BROWSER_UI_CONTENT_SUGGESTIONS_CELLS_CONTENT_SUGGESTIONS_MOST_VISITED_ITEM_H_