Change HistoryService::QueryURL to use CancelableTaskTracker

chrome/browser/history/history_marshaling.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.
 
 // Data structures for communication between the history service on the main
 // thread and the backend on the history thread.
 
 #ifndef CHROME_BROWSER_HISTORY_HISTORY_MARSHALING_H_
 #define CHROME_BROWSER_HISTORY_HISTORY_MARSHALING_H_
 
 #include "base/memory/scoped_vector.h"
 #include "chrome/browser/common/cancelable_request.h"
 #include "chrome/browser/history/history_service.h"
 #include "chrome/browser/history/page_usage_data.h"
 
 #if defined(OS_ANDROID)
 #include "chrome/browser/history/history_marshaling_android.h"
 #endif
 
 namespace history {
 
 // Querying -------------------------------------------------------------------
 
-typedef CancelableRequest1<HistoryService::QueryURLCallback,
-                           Tuple2<URLRow, VisitVector> >
-    QueryURLRequest;
-
 typedef CancelableRequest1<HistoryService::QueryHistoryCallback,
                            QueryResults>
     QueryHistoryRequest;
 
 typedef CancelableRequest1<HistoryService::QueryRedirectsCallback,
                            history::RedirectList>
     QueryRedirectsRequest;
 
 typedef CancelableRequest<HistoryService::GetVisibleVisitCountToHostCallback>
     GetVisibleVisitCountToHostRequest;
@@ skipping 28 matching lines @@
 
 // The argument here is an input value, which is the task to run on the
 // background thread. The callback is used to execute the portion of the task
 // that executes on the main thread.
 typedef CancelableRequest1<base::Closure, scoped_refptr<HistoryDBTask> >
     HistoryDBTaskRequest;
 
 }  // namespace history
 
 #endif  // CHROME_BROWSER_HISTORY_HISTORY_MARSHALING_H_