The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/a2e6fd993b05675adbedb635639f218d10ff0aa7

commit a2e6fd993b05675adbedb635639f218d10ff0aa7
Author: gambard <gambard@chromium.org>
Date: Thu Jun 22 09:10:16 2017

Add promo to Content Suggestions

Add the What's New promo to the ContentSuggestions.

BUG= 732416 

Change-Id: I46d5484b3629df178b3d732020e4ac18702da8af
Reviewed-on: https://chromium-review.googlesource.com/541366
Commit-Queue: Gauthier Ambard <gambard@chromium.org>
Reviewed-by: Louis Romero <lpromero@chromium.org>
Cr-Commit-Position: refs/heads/master@{#481488}
[modify] https://crrev.com/a2e6fd993b05675adbedb635639f218d10ff0aa7/ios/chrome/browser/content_suggestions/BUILD.gn
[modify] https://crrev.com/a2e6fd993b05675adbedb635639f218d10ff0aa7/ios/chrome/browser/content_suggestions/content_suggestions_coordinator.mm
[modify] https://crrev.com/a2e6fd993b05675adbedb635639f218d10ff0aa7/ios/chrome/browser/content_suggestions/content_suggestions_mediator.h
[modify] https://crrev.com/a2e6fd993b05675adbedb635639f218d10ff0aa7/ios/chrome/browser/content_suggestions/content_suggestions_mediator.mm
[modify] https://crrev.com/a2e6fd993b05675adbedb635639f218d10ff0aa7/ios/chrome/browser/ui/content_suggestions/cells/BUILD.gn
[add] https://crrev.com/a2e6fd993b05675adbedb635639f218d10ff0aa7/ios/chrome/browser/ui/content_suggestions/cells/content_suggestions_whats_new_item.h
[add] https://crrev.com/a2e6fd993b05675adbedb635639f218d10ff0aa7/ios/chrome/browser/ui/content_suggestions/cells/content_suggestions_whats_new_item.mm
[add] https://crrev.com/a2e6fd993b05675adbedb635639f218d10ff0aa7/ios/chrome/browser/ui/content_suggestions/cells/content_suggestions_whats_new_item_unittest.mm
[modify] https://crrev.com/a2e6fd993b05675adbedb635639f218d10ff0aa7/ios/chrome/browser/ui/content_suggestions/content_suggestions_collection_updater.h
[modify] https://crrev.com/a2e6fd993b05675adbedb635639f218d10ff0aa7/ios/chrome/browser/ui/content_suggestions/content_suggestions_collection_updater.mm
[modify] https://crrev.com/a2e6fd993b05675adbedb635639f218d10ff0aa7/ios/chrome/browser/ui/content_suggestions/content_suggestions_commands.h
[modify] https://crrev.com/a2e6fd993b05675adbedb635639f218d10ff0aa7/ios/chrome/browser/ui/content_suggestions/content_suggestions_view_controller.mm