Remove dependency on visitedlink from history

chrome/browser/history/history_backend.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_HISTORY_HISTORY_BACKEND_H_
 #define CHROME_BROWSER_HISTORY_HISTORY_BACKEND_H_
 
 #include <set>
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/containers/mru_cache.h"
 #include "base/files/file_path.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/memory_pressure_listener.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/observer_list.h"
 #include "base/single_thread_task_runner.h"
 #include "base/task/cancelable_task_tracker.h"
 #include "components/favicon_base/favicon_usage_data.h"
 #include "components/history/core/browser/expire_history_backend.h"
 #include "components/history/core/browser/history_backend_notifier.h"
 #include "components/history/core/browser/history_types.h"
 #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)
 #include "components/history/core/browser/android/android_history_types.h"
 #endif
 
 class HistoryURLProvider;
 struct HistoryURLProviderParams;
 class SkBitmap;
 class TestingProfile;
@@ skipping 174 matching lines @@
                              const GURL& url,
                              base::Time end_ts);
 
   // Querying ------------------------------------------------------------------
 
   // Run the |callback| on the History thread.
   // |callback| should handle the NULL database case.
   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);
   void QueryHistory(const base::string16& text_query,
                     const QueryOptions& options,
                     QueryResults* query_results);
 
   // Computes the most recent URL(s) that the given canonical URL has
   // redirected to. There may be more than one redirect in a row, so this
   // function will fill the given array with the entire chain. If there are
@@ skipping 685 matching lines @@
 
   // List of observers
   ObserverList<HistoryBackendObserver> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(HistoryBackend);
 };
 
 }  // namespace history
 
 #endif  // CHROME_BROWSER_HISTORY_HISTORY_BACKEND_H_