The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/9b6abde6cad9c609e4961e2149aafd328bfa19a5

commit 9b6abde6cad9c609e4961e2149aafd328bfa19a5
Author: gambard <gambard@chromium.org>
Date: Mon Feb 20 12:13:55 2017

Add context menu for ContentSuggestions

This CL adds a context menu for ContentSuggestions and a way to open the
article by tapping it.
The context menu does nothing for deletion for now.

BUG= 692073 

Review-Url: https://codereview.chromium.org/2691303002
Cr-Commit-Position: refs/heads/master@{#451602}

[modify] https://crrev.com/9b6abde6cad9c609e4961e2149aafd328bfa19a5/ios/chrome/app/strings/ios_strings.grd
[modify] https://crrev.com/9b6abde6cad9c609e4961e2149aafd328bfa19a5/ios/chrome/browser/content_suggestions/BUILD.gn
[modify] https://crrev.com/9b6abde6cad9c609e4961e2149aafd328bfa19a5/ios/chrome/browser/content_suggestions/content_suggestions_coordinator.h
[modify] https://crrev.com/9b6abde6cad9c609e4961e2149aafd328bfa19a5/ios/chrome/browser/content_suggestions/content_suggestions_coordinator.mm
[modify] https://crrev.com/9b6abde6cad9c609e4961e2149aafd328bfa19a5/ios/chrome/browser/ui/browser_view_controller.mm
[modify] https://crrev.com/9b6abde6cad9c609e4961e2149aafd328bfa19a5/ios/chrome/browser/ui/content_suggestions/content_suggestions_article_item.h
[modify] https://crrev.com/9b6abde6cad9c609e4961e2149aafd328bfa19a5/ios/chrome/browser/ui/content_suggestions/content_suggestions_article_item.mm
[modify] https://crrev.com/9b6abde6cad9c609e4961e2149aafd328bfa19a5/ios/chrome/browser/ui/content_suggestions/content_suggestions_commands.h
[modify] https://crrev.com/9b6abde6cad9c609e4961e2149aafd328bfa19a5/ios/chrome/browser/ui/content_suggestions/content_suggestions_view_controller.mm