Port HistoryService::GetVisibleVisitCountToHost to CancelableTaskTracker

chrome/browser/ui/website_settings/website_settings.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_UI_WEBSITE_SETTINGS_WEBSITE_SETTINGS_H_
 #define CHROME_BROWSER_UI_WEBSITE_SETTINGS_WEBSITE_SETTINGS_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string16.h"
+#include "base/task/cancelable_task_tracker.h"
 #include "base/time/time.h"
 #include "chrome/browser/common/cancelable_request.h"
 #include "chrome/browser/content_settings/tab_specific_content_settings.h"
 #include "chrome/browser/history/history_service.h"
 #include "chrome/common/content_settings.h"
 #include "chrome/common/content_settings_types.h"
 #include "content/public/common/signed_certificate_timestamp_id_and_status.h"
 #include "ui/gfx/native_widget_types.h"
 #include "url/gurl.h"
 
@@ skipping 58 matching lines @@
                   const content::SSLStatus& ssl,
                   content::CertStore* cert_store);
   virtual ~WebsiteSettings();
 
   // This method is called when ever a permission setting is changed.
   void OnSitePermissionChanged(ContentSettingsType type,
                                ContentSetting value);
 
   // Callback used for requests to fetch the number of page visits from history
   // service and the time of the first visit.
-  void OnGotVisitCountToHost(HistoryService::Handle handle,
-                             bool found_visits,
+  void OnGotVisitCountToHost(bool found_visits,
                              int visit_count,
                              base::Time first_visit);
 
   // This method is called by the UI when the UI is closing.
   void OnUIClosing();
 
   // Accessors.
   SiteConnectionStatus site_connection_status() const {
     return site_connection_status_;
   }
@@ skipping 92 matching lines @@
   base::string16 organization_name_;
 
   // The |CertStore| provides all X509Certificates.
   content::CertStore* cert_store_;
 
   // The |HostContentSettingsMap| is the service that provides and manages
   // content settings (aka. site permissions).
   HostContentSettingsMap* content_settings_;
 
   // Used to request the number of page visits.
-  CancelableRequestConsumer visit_count_request_consumer_;
+  base::CancelableTaskTracker visit_count_task_tracker_;
 
   DISALLOW_COPY_AND_ASSIGN(WebsiteSettings);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBSITE_SETTINGS_WEBSITE_SETTINGS_H_