[NTP::RecentTabs] Enable by default and depend on recent tabs flag.

chrome/browser/ui/webui/snippets_internals_message_handler.cc

Index: chrome/browser/ui/webui/snippets_internals_message_handler.cc
diff --git a/chrome/browser/ui/webui/snippets_internals_message_handler.cc b/chrome/browser/ui/webui/snippets_internals_message_handler.cc
index 670b9fd922557ef84c2118fe7b089a6b79374c35..0eede3f0090ffe707e5dcb1a0484b831c05add39 100644
--- a/chrome/browser/ui/webui/snippets_internals_message_handler.cc
+++ b/chrome/browser/ui/webui/snippets_internals_message_handler.cc
@@ -31,6 +31,7 @@
 #include "components/ntp_snippets/remote/ntp_snippets_fetcher.h"
 #include "components/ntp_snippets/remote/remote_suggestions_provider.h"
 #include "components/ntp_snippets/switches.h"
+#include "components/offline_pages/core/offline_page_feature.h"
 #include "components/prefs/pref_service.h"
 #include "content/public/browser/web_ui.h"
 
@@ -280,6 +281,9 @@ void SnippetsInternalsMessageHandler::SendAllContent() {
   SendBoolean("flag-recent-offline-tab-suggestions",
               base::FeatureList::IsEnabled(
                   ntp_snippets::kRecentOfflineTabSuggestionsFeature));
+  SendBoolean("flag-offlining-recent-pages-feature",
+              base::FeatureList::IsEnabled(
+                  offline_pages::kOffliningRecentPagesFeature));
   SendBoolean(
       "flag-asset-download-suggestions",
       base::FeatureList::IsEnabled(features::kAssetDownloadSuggestionsFeature));