Port HistoryService::QueryFilteredURLs to CancelableRequestTracker

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 aa5660da5b61584d4ea15b242a7fc2cc751d8f8d..6adb955f37b7575990b271de1402f9fd0094b05d 100644
--- a/chrome/browser/history/history_backend.h
+++ b/chrome/browser/history/history_backend.h
@@ -182,11 +182,10 @@ class HistoryBackend : public base::RefCountedThreadSafe<HistoryBackend>,
   // 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 -------------------------------------------------------------------