Connect ContentSuggestionsMediator to the ContentService

ios/chrome/browser/ui/content_suggestions/content_suggestion.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_SUGGESTION_H_
 #define IOS_CHROME_BROWSER_UI_CONTENT_SUGGESTIONS_CONTENT_SUGGESTION_H_
 
 #import <UIKit/UIKit.h>
 
+#import "ios/chrome/browser/ui/collection_view/collection_view_model.h"
+#include "url/gurl.h"
+
+@class ContentSuggestionsImageUpdater;
+@class ContentSuggestionsSectionInformation;
+
+// Enum defining the ItemType of this ContentSuggestionsCollectionUpdater.
+typedef NS_ENUM(NSInteger, ContentSuggestionsItemType) {
+  ContentSuggestionsItemTypeText = kItemTypeEnumZero,
+  ContentSuggestionsItemTypeArticle,
+  ContentSuggestionsItemTypeExpand,
+  ContentSuggestionsItemTypeStack,
+  ContentSuggestionsItemTypeFavicon,
+};
+
 // Data for a suggestions item, compatible with Objective-C.
 @interface ContentSuggestion : NSObject
 
 @property(nonatomic, copy) NSString* title;
 @property(nonatomic, strong) UIImage* image;
+@property(nonatomic, copy) NSString* text;

[lpromero, 2017/02/14 10:52:27]

Please add comments, as this is becoming a larger API.

[gambard, 2017/02/14 14:03:42]

Done.

+@property(nonatomic, assign) GURL url;
+
+@property(nonatomic, strong) ContentSuggestionsSectionInformation* section;
+@property(nonatomic, assign) ContentSuggestionsItemType type;

[lpromero, 2017/02/14 10:52:27]

I am not a fan of how the collection view world gets put into this pure model
object (pure model as opposed to the CollectionViewModel, which is more of a
ViewData or ViewModel kind of model).

Cant it be just a NSInteger, and the updater passes here an item type value?

[gambard, 2017/02/14 14:03:42]

Not sure I understand. Can you clarify?
I am using item type to get compilation indications.

[lpromero, 2017/02/14 15:43:32]

I know it helps with compiler, but it makes this model class depend on this
implementation detail, and literally depend on collection_view_model.

[gambard, 2017/02/15 10:17:56]

Done.

+
+@property(nonatomic, strong) ContentSuggestionsImageUpdater* imageUpdater;

[lpromero, 2017/02/14 10:52:27]

Please add a comment for how it is used in the context of this class.

[gambard, 2017/02/14 14:03:42]

Done.

 
 @end
 
 #endif  // IOS_CHROME_BROWSER_UI_CONTENT_SUGGESTIONS_CONTENT_SUGGESTION_H_