Remove dependency on visitedlink from history

chrome/browser/history/history_backend.h

Index: chrome/browser/history/history_backend.h
diff --git a/chrome/browser/history/history_backend.h b/chrome/browser/history/history_backend.h
index 3af0a5a20d451f9a63197ead388fc5f810bb9d63..690cf59e695933ce344c5355b2a67ebc912e8d37 100644
--- a/chrome/browser/history/history_backend.h
+++ b/chrome/browser/history/history_backend.h
@@ -24,7 +24,6 @@
 #include "components/history/core/browser/keyword_id.h"
 #include "components/history/core/browser/thumbnail_database.h"
 #include "components/history/core/browser/visit_tracker.h"
-#include "components/visitedlink/browser/visitedlink_delegate.h"
 #include "sql/init_status.h"
 
 #if defined(OS_ANDROID)
@@ -222,9 +221,6 @@ class HistoryBackend : public base::RefCountedThreadSafe<HistoryBackend>,
   void ScheduleAutocomplete(const base::Callback<
       void(history::HistoryBackend*, history::URLDatabase*)>& callback);
 
-  void IterateURLs(
-      const scoped_refptr<visitedlink::VisitedLinkDelegate::URLEnumerator>&
-          enumerator);
   void QueryURL(const GURL& url,
                 bool want_visits,
                 QueryURLResult* query_url_result);