Change HistoryService::QueryURL to use CancelableTaskTracker

chrome/browser/extensions/api/history/history_api.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_EXTENSIONS_API_HISTORY_HISTORY_API_H_
 #define CHROME_BROWSER_EXTENSIONS_API_HISTORY_HISTORY_API_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 117 matching lines @@
  public:
   DECLARE_EXTENSION_FUNCTION("history.getVisits", HISTORY_GETVISITS)
 
  protected:
   virtual ~HistoryGetVisitsFunction() {}
 
   // HistoryFunctionWithCallback:
   virtual bool RunAsyncImpl() OVERRIDE;
 
   // Callback for the history function to provide results.
-  void QueryComplete(HistoryService::Handle request_service,
-                     bool success,
-                     const history::URLRow* url_row,
-                     history::VisitVector* visits);
+  void QueryComplete(bool success,
+                     const history::URLRow& url_row,
+                     const history::VisitVector& visits);
 };
 
 class HistorySearchFunction : public HistoryFunctionWithCallback {
  public:
   DECLARE_EXTENSION_FUNCTION("history.search", HISTORY_SEARCH)
 
  protected:
   virtual ~HistorySearchFunction() {}
 
   // HistoryFunctionWithCallback:
@@ skipping 51 matching lines @@
   // HistoryFunctionWithCallback:
   virtual bool RunAsyncImpl() OVERRIDE;
 
   // Callback for the history service to acknowledge deletion.
   void DeleteComplete();
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_HISTORY_HISTORY_API_H_