Make MediaFileUtil run on thread pool.

webkit/fileapi/sandbox_mount_point_provider.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/sandbox_mount_point_provider.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/metrics/histogram.h"
 #include "base/rand_util.h"
-#include "base/sequenced_task_runner.h"
+#include "base/single_thread_task_runner.h"
 #include "base/string_util.h"
 #include "base/stringprintf.h"
 #include "base/task_runner_util.h"
 #include "googleurl/src/gurl.h"
 #include "net/base/net_util.h"
 #include "webkit/fileapi/file_system_file_stream_reader.h"
 #include "webkit/fileapi/file_system_operation_context.h"
 #include "webkit/fileapi/file_system_options.h"
+#include "webkit/fileapi/file_system_task_runners.h"
 #include "webkit/fileapi/file_system_types.h"
 #include "webkit/fileapi/file_system_usage_cache.h"
 #include "webkit/fileapi/file_system_util.h"
 #include "webkit/fileapi/local_file_system_operation.h"
 #include "webkit/fileapi/native_file_util.h"
 #include "webkit/fileapi/obfuscated_file_util.h"
 #include "webkit/fileapi/sandbox_file_stream_writer.h"
 #include "webkit/glue/webkit_glue.h"
 #include "webkit/quota/quota_manager.h"
 
@@ skipping 420 matching lines @@
 FileSystemQuotaUtil* SandboxMountPointProvider::GetQuotaUtil() {
   return this;
 }
 
 void SandboxMountPointProvider::DeleteFileSystem(
     const GURL& origin_url,
     FileSystemType type,
     FileSystemContext* context,
     const DeleteFileSystemCallback& callback) {
   base::PostTaskAndReplyWithResult(
-      context->file_task_runner(),
+      context->task_runners()->file_task_runner(),
       FROM_HERE,
       // It is safe to pass Unretained(this) since context owns it.
       base::Bind(&SandboxMountPointProvider::DeleteOriginDataOnFileThread,
                  base::Unretained(this),
                  make_scoped_refptr(context),
                  base::Unretained(context->quota_manager_proxy()),
                  origin_url,
                  type),
       callback);
 }
@@ skipping 276 matching lines @@
       break;
     case base::PLATFORM_FILE_ERROR_FAILED:
     default:
       REPORT(kUnknownError);
       break;
   }
 #undef REPORT
 }
 
 }  // namespace fileapi