Remove dependency on visitedlink from history

chrome/browser/history/content_visit_delegate.h

+// Copyright 2015 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_CONTENT_VISIT_DELEGATE_H_
+#define CHROME_BROWSER_HISTORY_CONTENT_VISIT_DELEGATE_H_
+
+#include <vector>
+
+#include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/task/cancelable_task_tracker.h"
+#include "components/history/core/browser/visit_delegate.h"
+#include "components/visitedlink/browser/visitedlink_delegate.h"
+
+namespace content {
+class BrowserContext;
+}
+
+namespace visitedlink {
+class VisitedLinkMaster;
+}
+
+// ContentVisitDelegate bridge history::VisitDelegate events to
+// visitedlink::VisitedLinkMaster.
+class ContentVisitDelegate : public history::VisitDelegate,
+                             public visitedlink::VisitedLinkDelegate {
+ public:
+  explicit ContentVisitDelegate(content::BrowserContext* browser_context);
+  ~ContentVisitDelegate() override;
+
+ private:
+  // Implementation of history::VisitDelegate.
+  bool Init(HistoryService* history_service) override;
+  void AddURL(const GURL& url) override;
+  void AddURLs(const std::vector<GURL>& urls) override;
+  void DeleteURLs(const std::vector<GURL>& urls) override;
+  void DeleteAllURLs() override;
+
+  // Implementation of visitedlink::VisitedLinkDelegate.
+  void RebuildTable(const scoped_refptr<
+      visitedlink::VisitedLinkDelegate::URLEnumerator>& enumerator) override;
+
+  HistoryService* history_service_;  // Weak.
+  scoped_ptr<visitedlink::VisitedLinkMaster> visitedlink_master_;
+  base::CancelableTaskTracker task_tracker_;
+
+  DISALLOW_COPY_AND_ASSIGN(ContentVisitDelegate);
+};
+
+#endif  // CHROME_BROWSER_HISTORY_CONTENT_VISIT_DELEGATE_H_