📰 Persist category dismissals

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 a33f6740e8eff6067ec389483de09d2897492089..3a03c5b7c6b3954d0c0b9afd64f7117f926e2862 100644
--- a/components/ntp_snippets/remote/ntp_snippets_service.cc
+++ b/components/ntp_snippets/remote/ntp_snippets_service.cc
@@ -961,6 +961,8 @@ void NTPSnippetsService::EnterState(State state) {
 }
 
 void NTPSnippetsService::NotifyNewSuggestions() {
+  ContentSuggestionsProvider::Observer::SuggestionBatch receivedSuggestions;
+
   for (const auto& item : categories_) {
     Category category = item.first;
     const CategoryContent& content = item.second;
@@ -985,10 +987,10 @@ void NTPSnippetsService::NotifyNewSuggestions() {
       result.emplace_back(std::move(suggestion));
     }
 
-    DVLOG(1) << "NotifyNewSuggestions(): " << result.size()
-             << " items in category " << category;
-    observer()->OnNewSuggestions(this, category, std::move(result));
+    receivedSuggestions[category] = std::move(result);
   }
+
+  observer()->OnNewSuggestionBatch(this, std::move(receivedSuggestions));
 }
 
 void NTPSnippetsService::UpdateCategoryStatus(Category category,