Port HistoryService::QueryRedirects{From,To} to CancelableTaskTracker

chrome/browser/safe_browsing/malware_details_history.h

Index: chrome/browser/safe_browsing/malware_details_history.h
diff --git a/chrome/browser/safe_browsing/malware_details_history.h b/chrome/browser/safe_browsing/malware_details_history.h
index feea944ba7b0c9367999cf41adade3c7fb594400..214b498916aa0c1a79caa366e84e29b576a003d7 100644
--- a/chrome/browser/safe_browsing/malware_details_history.h
+++ b/chrome/browser/safe_browsing/malware_details_history.h
@@ -15,6 +15,7 @@
 #include "base/memory/linked_ptr.h"
 #include "base/memory/ref_counted.h"
 #include "base/sequenced_task_runner_helpers.h"
+#include "base/task/cancelable_task_tracker.h"
 #include "chrome/browser/history/history_service.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_observer.h"
@@ -59,17 +60,15 @@ class MalwareDetailsRedirectsCollector
 
   void StartGetRedirects(const std::vector<GURL>& urls);
   void GetRedirects(const GURL& url);
-  void OnGotQueryRedirectsTo(HistoryService::Handle handle,
-                             GURL url,
-                             bool success,
-                             history::RedirectList* redirect_list);
+  void OnGotQueryRedirectsTo(const GURL& url,
+                             const history::RedirectList* redirect_list);
 
   // Posts the callback method back to IO thread when redirects collecting
   // is all done.
   void AllDone();
 
   Profile* profile_;
-  CancelableRequestConsumer request_consumer_;
+  base::CancelableTaskTracker request_tracker_;
 
   // Method we call when we are done. The caller must be alive for the
   // whole time, we are modifying its state (see above).