[NTP::Push] Adding BreakingNewsSuggestionsProvider

components/ntp_snippets/content_suggestions_metrics.cc

Index: components/ntp_snippets/content_suggestions_metrics.cc
diff --git a/components/ntp_snippets/content_suggestions_metrics.cc b/components/ntp_snippets/content_suggestions_metrics.cc
index 348a555694e6b0e289d46e5ad2fef5c719b6725c..8d8e7b20c2a986d54d06e5d1c36acef2011918cb 100644
--- a/components/ntp_snippets/content_suggestions_metrics.cc
+++ b/components/ntp_snippets/content_suggestions_metrics.cc
@@ -78,6 +78,7 @@ enum HistogramCategories {
   FOREIGN_TABS,
   ARTICLES,
   READING_LIST,
+  BREAKING_NEWS,
   // Insert new values here!
   COUNT
 };
@@ -107,6 +108,8 @@ HistogramCategories GetHistogramCategory(Category category) {
       return HistogramCategories::ARTICLES;
     case KnownCategories::READING_LIST:
       return HistogramCategories::READING_LIST;
+    case KnownCategories::BREAKING_NEWS:
+      return HistogramCategories::BREAKING_NEWS;
     case KnownCategories::LOCAL_CATEGORIES_COUNT:
     case KnownCategories::REMOTE_CATEGORIES_OFFSET:
       NOTREACHED();
@@ -137,6 +140,8 @@ std::string GetCategorySuffix(Category category) {
       return "Experimental";
     case HistogramCategories::READING_LIST:
       return "ReadingList";
+    case HistogramCategories::BREAKING_NEWS:
+      return "BreakingNews";
     case HistogramCategories::COUNT:
       NOTREACHED();
       break;