[NTP Snippets] Pass "no suggestions" message from the backend to the UI

components/ntp_snippets/remote/ntp_snippets_service.cc

Index: components/ntp_snippets/remote/ntp_snippets_service.cc
diff --git a/components/ntp_snippets/remote/ntp_snippets_service.cc b/components/ntp_snippets/remote/ntp_snippets_service.cc
index 2c26c17c5ecce2522cdc148ecad17b3f6b8b06df..fe44999a59eb9e61895ebdaddadf6d2a9bff3853 100644
--- a/components/ntp_snippets/remote/ntp_snippets_service.cc
+++ b/components/ntp_snippets/remote/ntp_snippets_service.cc
@@ -313,10 +313,11 @@ CategoryStatus NTPSnippetsService::GetCategoryStatus(Category category) {
 CategoryInfo NTPSnippetsService::GetCategoryInfo(Category category) {
   DCHECK(base::ContainsKey(categories_, category));
   const CategoryContent& content = categories_[category];
-  return CategoryInfo(content.localized_title,
-                      ContentSuggestionsCardLayout::FULL_CARD,
-                      /*has_more_button=*/false,
-                      /*show_if_empty=*/true);
+  return CategoryInfo(
+      content.localized_title, ContentSuggestionsCardLayout::FULL_CARD,
+      /*has_more_button=*/false,
+      /*show_if_empty=*/true,
+      l10n_util::GetStringUTF16(IDS_NTP_ARTICLE_SUGGESTIONS_SECTION_EMPTY));
 }
 
 void NTPSnippetsService::DismissSuggestion(