Enable download home by default

chrome/browser/ntp_snippets/download_suggestions_provider.h

Index: chrome/browser/ntp_snippets/download_suggestions_provider.h
diff --git a/chrome/browser/ntp_snippets/download_suggestions_provider.h b/chrome/browser/ntp_snippets/download_suggestions_provider.h
index a6f2fb39baface16a0468e04516fefc38febc339..59bf356f557328a90abd3ced220aa8b826f48c8b 100644
--- a/chrome/browser/ntp_snippets/download_suggestions_provider.h
+++ b/chrome/browser/ntp_snippets/download_suggestions_provider.h
@@ -46,8 +46,7 @@ class DownloadSuggestionsProvider
       offline_pages::OfflinePageModel* offline_page_model,
       content::DownloadManager* download_manager,
       DownloadHistory* download_history,
-      PrefService* pref_service,
-      bool download_manager_ui_enabled);
+      PrefService* pref_service);
   ~DownloadSuggestionsProvider() override;
 
   // ContentSuggestionsProvider implementation.
@@ -222,10 +221,6 @@ class DownloadSuggestionsProvider
   // the criteria above are cached, otherwise only |kMaxSuggestionsCount|.
   std::vector<const content::DownloadItem*> cached_asset_downloads_;
 
-  // Whether the Download Manager UI is enabled, in which case the More button
-  // for the Downloads section can redirect there.
-  const bool download_manager_ui_enabled_;
-
   bool is_asset_downloads_initialization_complete_;
 
   base::WeakPtrFactory<DownloadSuggestionsProvider> weak_ptr_factory_;