Port HistoryService::QueryFilteredURLs to CancelableRequestTracker

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>
@@ skipping 164 matching lines @@
   // Request the |result_count| most visited URLs and the chain of
   // redirects leading to each of these URLs. |days_back| is the
   // number of days of history to use. Used by TopSites.
   void QueryMostVisitedURLs(int result_count,
                             int days_back,
                             MostVisitedURLList* result);
 
   // Request the |result_count| URLs and the chain of redirects
   // leading to each of these URLs, filterd and sorted based on the |filter|.
   // If |debug| is enabled, additional data will be computed and provided.
-  void QueryFilteredURLs(
-      scoped_refptr<QueryFilteredURLsRequest> request,
-      int result_count,
-      const history::VisitFilter& filter,
-      bool debug);
+  void QueryFilteredURLs(int result_count,
+                         const history::VisitFilter& filter,
+                         bool debug,
+                         history::FilteredURLList* result);
 
   // Favicon -------------------------------------------------------------------
 
   void GetFavicons(
       const std::vector<GURL>& icon_urls,
       int icon_types,
       const std::vector<int>& desired_sizes,
       std::vector<favicon_base::FaviconRawBitmapResult>* bitmap_results);
 
   void GetLargestFaviconForURL(
@@ skipping 636 matching lines @@
 
   // Listens for the system being under memory pressure.
   scoped_ptr<base::MemoryPressureListener> memory_pressure_listener_;
 
   DISALLOW_COPY_AND_ASSIGN(HistoryBackend);
 };
 
 }  // namespace history
 
 #endif  // CHROME_BROWSER_HISTORY_HISTORY_BACKEND_H_