[Bookmark suggestions] Clean-up in the api: switch const* to const&

components/ntp_snippets/bookmarks/bookmark_last_visit_utils.h

Index: components/ntp_snippets/bookmarks/bookmark_last_visit_utils.h
diff --git a/components/ntp_snippets/bookmarks/bookmark_last_visit_utils.h b/components/ntp_snippets/bookmarks/bookmark_last_visit_utils.h
index cdd5cb6957ae85c6268cc4e5e91c6f967afb458a..b022e8e3309b73a00a29861a9dfddd7129cd8b61 100644
--- a/components/ntp_snippets/bookmarks/bookmark_last_visit_utils.h
+++ b/components/ntp_snippets/bookmarks/bookmark_last_visit_utils.h
@@ -35,7 +35,7 @@ void UpdateBookmarkOnURLVisitedInMainFrame(
 // As visits, we primarily understand visits on Android (the visit when the
 // bookmark is created also counts). Visits on desktop platforms are considered
 // only if |consider_visits_from_desktop|.
-bool GetLastVisitDateForNTPBookmark(const bookmarks::BookmarkNode* node,
+bool GetLastVisitDateForNTPBookmark(const bookmarks::BookmarkNode& node,
                                     bool consider_visits_from_desktop,
                                     base::Time* out);
 
@@ -44,7 +44,7 @@ void MarkBookmarksDismissed(bookmarks::BookmarkModel* bookmark_model,
                             const GURL& url);
 
 // Gets the dismissed flag for a given bookmark |node|. Defaults to false.
-bool IsDismissedFromNTPForBookmark(const bookmarks::BookmarkNode* node);
+bool IsDismissedFromNTPForBookmark(const bookmarks::BookmarkNode& node);
 
 // Removes the dismissed flag from all bookmarks (only for debugging).
 void MarkAllBookmarksUndismissed(bookmarks::BookmarkModel* bookmark_model);