Make MediaFileUtil run on thread pool.

webkit/fileapi/isolated_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/isolated_mount_point_provider.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/file_path.h"
@@ skipping 17 matching lines @@
 namespace fileapi {
 
 namespace {
 
 IsolatedContext* isolated_context() {
   return IsolatedContext::GetInstance();
 }
 
 }  // namespace
 
-IsolatedMountPointProvider::IsolatedMountPointProvider()
+IsolatedMountPointProvider::IsolatedMountPointProvider(
+    base::SequencedTaskRunner* media_task_runner)
     : media_path_filter_(new MediaPathFilter()),
+      media_task_runner_(media_task_runner),
       isolated_file_util_(new IsolatedFileUtil()),
       dragged_file_util_(new DraggedFileUtil()),
       native_media_file_util_(new NativeMediaFileUtil()) {
 }
 
 IsolatedMountPointProvider::~IsolatedMountPointProvider() {
 }
 
 void IsolatedMountPointProvider::ValidateFileSystemRoot(
     const GURL& origin_url,
@@ skipping 56 matching lines @@
   return virtual_path;
 }
 
 FileSystemOperationInterface*
 IsolatedMountPointProvider::CreateFileSystemOperation(
     const FileSystemURL& url,
     FileSystemContext* context) const {
   scoped_ptr<FileSystemOperationContext> operation_context(
       new FileSystemOperationContext(context));
   if (url.type() == kFileSystemTypeNativeMedia ||
-      url.type() == kFileSystemTypeDeviceMedia)
+      url.type() == kFileSystemTypeDeviceMedia) {
     operation_context->set_media_path_filter(media_path_filter_.get());
+    operation_context->SetTaskRunner(media_task_runner_.get());
+  }
   return new LocalFileSystemOperation(context, operation_context.Pass());
 }
 
 webkit_blob::FileStreamReader*
 IsolatedMountPointProvider::CreateFileStreamReader(
     const FileSystemURL& url,
     int64 offset,
     FileSystemContext* context) const {
   return new webkit_blob::LocalFileStreamReader(
       context->file_task_runner(), url.path(), offset, base::Time());
 }
 
 FileStreamWriter* IsolatedMountPointProvider::CreateFileStreamWriter(
     const FileSystemURL& url,
     int64 offset,
     FileSystemContext* context) const {
   return new LocalFileStreamWriter(url.path(), offset);
 }
 
 FileSystemQuotaUtil* IsolatedMountPointProvider::GetQuotaUtil() {
   // No quota support.
   return NULL;
 }
 
 }  // namespace fileapi