Make MediaFileUtil run on thread pool.

webkit/fileapi/file_system_quota_client.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 "webkit/fileapi/file_system_quota_client.h"
 
 #include <algorithm>
 #include <set>
 
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
-#include "base/sequenced_task_runner.h"
+#include "base/single_thread_task_runner.h"
 #include "googleurl/src/gurl.h"
 #include "net/base/net_util.h"
 #include "webkit/fileapi/file_system_context.h"
 #include "webkit/fileapi/file_system_quota_util.h"
+#include "webkit/fileapi/file_system_task_runners.h"
 #include "webkit/fileapi/file_system_usage_cache.h"
 #include "webkit/fileapi/file_system_util.h"
 #include "webkit/fileapi/sandbox_mount_point_provider.h"
 
 using base::SequencedTaskRunner;
 using quota::QuotaThreadTask;
 using quota::StorageType;
 
 namespace fileapi {
 
@@ skipping 260 matching lines @@
 }
 
 void FileSystemQuotaClient::DidGetOriginsForHost(
     const TypeAndHostOrOrigin& type_and_host, const std::set<GURL>& origins) {
   DCHECK(pending_origins_for_host_callbacks_.HasCallbacks(type_and_host));
   pending_origins_for_host_callbacks_.Run(type_and_host, origins,
       FileSystemTypeToQuotaStorageType(type_and_host.first));
 }
 
 base::SequencedTaskRunner* FileSystemQuotaClient::file_task_runner() const {
-  return file_system_context_->file_task_runner();
+  return file_system_context_->task_runners()->file_task_runner();
 }
 
 }  // namespace fileapi