Connect ContentSuggestionsMediator to the ContentService

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

 // 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.
 
 #import "ios/chrome/browser/ui/content_suggestions/content_suggestion.h"
 
+#import "ios/chrome/browser/ui/content_suggestions/content_suggestions_image_updater.h"
+
 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
 #endif
 
+@interface ContentSuggestion ()<ContentSuggestionsImageUpdaterDelegate>
+
+@end
+
 @implementation ContentSuggestion
 
 @synthesize title = _title;
 @synthesize image = _image;
+@synthesize text = _text;
+@synthesize url = _url;
+
+@synthesize section = _section;
+@synthesize type = _type;
+
+@synthesize imageUpdater = _imageUpdater;
+
+- (void)setImageUpdater:(ContentSuggestionsImageUpdater*)imageUpdater {
+  imageUpdater.delegate = self;

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

To be cleaner, should you also unassigned yourself as delegate of the old
updater?

[gambard, 2017/02/14 14:03:43]

It cannot happen for now but it is cleaner.
Done.

+  _imageUpdater = imageUpdater;
+}
+
+#pragma mark - ContentSuggestionsImageUpdaterDelegate
+
+- (void)contentSuggestionsImageUpdater:
+            (ContentSuggestionsImageUpdater*)imageUpdater
+                         receivedImage:(UIImage*)image {
+  self.image = image;

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

Does this object need to notify to observers/delegate that its image changed?

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

ContentSuggestion does not have observers/delegate. What do you mean?

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

I know they don't. The question is: should they? How will users of a
ContentSuggestion know when to requery?

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

Ok, the imageUpdater thing is not clear at all :)
As stepan suggested, I will add it in a separate CL.

+}
 
 @end