Connect ContentSuggestionsMediator to the ContentService

ios/chrome/browser/ui/content_suggestions/content_suggestion.h

Index: ios/chrome/browser/ui/content_suggestions/content_suggestion.h
diff --git a/ios/chrome/browser/ui/content_suggestions/content_suggestion.h b/ios/chrome/browser/ui/content_suggestions/content_suggestion.h
index 68bcf1b502694bf31c36dad50ebcf666f6069e49..05da57ce8afc8f1963c5618a39487f7d3071d718 100644
--- a/ios/chrome/browser/ui/content_suggestions/content_suggestion.h
+++ b/ios/chrome/browser/ui/content_suggestions/content_suggestion.h
@@ -7,11 +7,31 @@
 
 #import <UIKit/UIKit.h>
 
+#include "url/gurl.h"
+
+@class ContentSuggestionsSectionInformation;
+
+// Enum defining the type of a ContentSuggestions.
+typedef NS_ENUM(NSInteger, ContentSuggestionType) {
+  ContentSuggestionTypeArticle
+};
+
 // Data for a suggestions item, compatible with Objective-C.

[stkhapugin, 2017/02/15 15:35:42]

Optional: maybe something like - objc wrapper for
ntp_snippets::suggestions_item? This way it's easy to understand what is a
suggestions item (I hope the ntp:: class actually has a reasonable description)

[gambard, 2017/02/16 10:06:30]

Well, the description is about the same :D
Done.

 @interface ContentSuggestion : NSObject
 
-@property(nonatomic, copy) NSString* title;
-@property(nonatomic, strong) UIImage* image;
+// Title of the suggestion.
+@property(nonatomic, copy, nullable) NSString* title;
+// Text for the suggestion.
+@property(nonatomic, copy, nullable) NSString* text;
+// Image for the suggestion.
+@property(nonatomic, strong, nullable) UIImage* image;
+// URL associated with the suggestion.
+@property(nonatomic, assign) GURL url;
+
+// Section information in which this suggestion should be.
+@property(nonatomic, strong, nullable)
+    ContentSuggestionsSectionInformation* section;
+@property(nonatomic, assign) ContentSuggestionType type;
 
 @end