[NTP::Downloads] Do not fetch Offline Pages when their model is loaded.

chrome/browser/ntp_snippets/download_suggestions_provider.cc

Index: chrome/browser/ntp_snippets/download_suggestions_provider.cc
diff --git a/chrome/browser/ntp_snippets/download_suggestions_provider.cc b/chrome/browser/ntp_snippets/download_suggestions_provider.cc
index 2b43b4eb9c4f3f1b10eb12df0fca10267a5916ae..c47a54d1b613f1d485a99604d7e93860961d416e 100644
--- a/chrome/browser/ntp_snippets/download_suggestions_provider.cc
+++ b/chrome/browser/ntp_snippets/download_suggestions_provider.cc
@@ -319,7 +319,9 @@ void DownloadSuggestionsProvider::
 void DownloadSuggestionsProvider::OfflinePageModelLoaded(
     offline_pages::OfflinePageModel* model) {
   DCHECK_EQ(offline_page_model_, model);
-  AsynchronouslyFetchOfflinePagesDownloads(/*notify=*/true);
+  // Ignored. We issue a fetch in the constructor (or when Downloads Manager is
+  // loaded) and Offline Page model answers asynchronously once it has been
+  // loaded.
 }
 
 void DownloadSuggestionsProvider::OfflinePageAdded(