Creates the Suggestions UI

ios/chrome/browser/ui/suggestions/suggestions_data_source.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_SUGGESTIONS_SUGGESTIONS_DATA_SOURCE_H_
+#define IOS_CHROME_BROWSER_UI_SUGGESTIONS_SUGGESTIONS_DATA_SOURCE_H_
+
+#import <UIKit/UIKit.h>
+
+#import "ios/chrome/browser/ui/suggestions/suggestions_view_controller.h"
+
+@class CollectionViewController;
+
+// Data Source for a CollectionViewController populating it with some items and
+// handling the items addition and removal. The items can be added before the
+// CollectionViewController is set.
+@interface SuggestionsDataSource : NSObject<SuggestionsDataSource>
+
+// The CollectionViewController for this Data Source. Setting this
+// CollectionViewController will add the currents items in the DataSource to the
+// CollectionViewController.
+@property(nonatomic, strong) CollectionViewController* collectionViewController;
+
+// Adds a text item with a |title| and a |subtitle| in the section numbered
+// |section|. If |section| > the current number of section, it will add a new
+// section at the end.
+- (void)addTextItem:(NSString*)title
+           subtitle:(NSString*)subtitle
+          toSection:(NSUInteger)section;
+@end
+
+#endif  // IOS_CHROME_BROWSER_UI_SUGGESTIONS_SUGGESTIONS_DATA_SOURCE_H_