Downloads: replace BrowserThread::FILE with task scheduler.

content/public/test/download_test_observer.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 "content/public/test/download_test_observer.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
 #include "base/stl_util.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "content/public/browser/browser_thread.h"
+#include "content/public/browser/download_manager.h"
 #include "content/public/browser/download_url_parameters.h"
 #include "content/public/test/test_utils.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace content {
 
 DownloadUpdatedObserver::DownloadUpdatedObserver(
     DownloadItem* item, DownloadUpdatedObserver::EventFilter filter)
     : item_(item),
       filter_(filter),
@@ skipping 354 matching lines @@
       // of DownloadManager so that we don't have to independently track
       // whether we are observing it for conditional destruction.
       for (DownloadSet::iterator it = downloads_observed_.begin();
            it != downloads_observed_.end(); ++it) {
         (*it)->RemoveObserver(this);
       }
       downloads_observed_.clear();
 
       // Trigger next step.  We need to go past the IO thread twice, as
       // there's a self-task posting in the IO thread cancel path.
-      BrowserThread::PostTask(
-          BrowserThread::FILE, FROM_HERE,
+      DownloadManager::GetTaskRunner()->PostTask(
+          FROM_HERE,
           base::Bind(&DownloadTestFlushObserver::PingFileThread, this, 2));
     }
   }
 }
 
 void DownloadTestFlushObserver::PingFileThread(int cycle) {
   BrowserThread::PostTask(
       BrowserThread::IO, FROM_HERE,
       base::Bind(&DownloadTestFlushObserver::PingIOThread, this, cycle));
 }
@@ skipping 84 matching lines @@
 }
 
 void SavePackageFinishedObserver::ManagerGoingDown(DownloadManager* manager) {
   download_->RemoveObserver(this);
   download_ = NULL;
   download_manager_->RemoveObserver(this);
   download_manager_ = NULL;
 }
 
 }  // namespace content