Change HistoryService::QueryURL to use CancelableTaskTracker

chrome/browser/extensions/api/history/history_api.cc

 // 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.
 
 #include "chrome/browser/extensions/api/history/history_api.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback.h"
 #include "base/command_line.h"
@@ skipping 283 matching lines @@
   EXTENSION_FUNCTION_VALIDATE(params.get());
 
   GURL url;
   if (!ValidateUrl(params->details.url, &url))
     return false;
 
   HistoryService* hs = HistoryServiceFactory::GetForProfile(
       GetProfile(), Profile::EXPLICIT_ACCESS);
   hs->QueryURL(url,
                true,  // Retrieve full history of a URL.
-               &cancelable_consumer_,
                base::Bind(&HistoryGetVisitsFunction::QueryComplete,
-                          base::Unretained(this)));
-
+                          base::Unretained(this)),
+               &task_tracker_);
   return true;
 }
 
 void HistoryGetVisitsFunction::QueryComplete(
-    HistoryService::Handle request_service,
     bool success,
-    const history::URLRow* url_row,
-    history::VisitVector* visits) {
+    const history::URLRow& url_row,
+    const history::VisitVector& visits) {
   VisitItemList visit_item_vec;
-  if (visits && !visits->empty()) {
-    for (history::VisitVector::iterator iterator = visits->begin();
-         iterator != visits->end();
+  if (success && !visits.empty()) {
+    for (history::VisitVector::const_iterator iterator = visits.begin();
+         iterator != visits.end();
          ++iterator) {
       visit_item_vec.push_back(make_linked_ptr(
           GetVisitItem(*iterator).release()));
     }
   }
 
   results_ = GetVisits::Results::Create(visit_item_vec);
   SendAsyncResponse();
 }
 
@@ skipping 145 matching lines @@
   }
 
   return true;
 }
 
 void HistoryDeleteAllFunction::DeleteComplete() {
   SendAsyncResponse();
 }
 
 }  // namespace extensions