chromeos: Destruct DriveResourceMetadata on the blocking pool

chrome/browser/chromeos/drive/drive_test_util.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/chromeos/drive/drive_test_util.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 211 matching lines @@
       feed_list,
       is_delta_feed,
       root_feed_changestamp,
       base::Bind(&base::DoNothing));
   // ChangeListLoader::UpdateFromFeed is asynchronous, so wait for it to finish.
   google_apis::test_util::RunBlockingPoolTask();
 
   return true;
 }
 
-void DeleteDriveCache(DriveCache* drive_cache) {
-  DCHECK(drive_cache);
-  drive_cache->Destroy();
-  // The cache destruction requires to post a task to the blocking pool.
-  google_apis::test_util::RunBlockingPoolTask();
-}
-
 }  // namespace test_util
 }  // namespace drive