[New CL] Add bookmark provider for content suggestions

components/ntp_snippets/features.cc

Index: components/ntp_snippets/features.cc
diff --git a/components/ntp_snippets/features.cc b/components/ntp_snippets/features.cc
index 7645601d2150723ca502541bb5997c9c546f8a3f..3b5d056543d90c101488636e2045e175ccccc2ab 100644
--- a/components/ntp_snippets/features.cc
+++ b/components/ntp_snippets/features.cc
@@ -6,6 +6,9 @@
 
 namespace ntp_snippets {
 
+const base::Feature kBookmarkSuggestionsFeature{
+    "NTPBookmarkSuggestions", base::FEATURE_DISABLED_BY_DEFAULT};
+
 const base::Feature kContentSuggestionsFeature{
     "NTPSnippets", base::FEATURE_DISABLED_BY_DEFAULT};