[storage/browser/fileapi] Replace MessageLoopProxy usage with ThreadTaskRunnerHandle

storage/browser/fileapi/isolated_file_system_backend.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 "storage/browser/fileapi/isolated_file_system_backend.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util_proxy.h"
 #include "base/logging.h"
-#include "base/message_loop/message_loop_proxy.h"
 #include "base/sequenced_task_runner.h"
+#include "base/thread_task_runner_handle.h"
 #include "storage/browser/fileapi/async_file_util_adapter.h"
 #include "storage/browser/fileapi/copy_or_move_file_validator.h"
 #include "storage/browser/fileapi/dragged_file_util.h"
 #include "storage/browser/fileapi/file_stream_reader.h"
 #include "storage/browser/fileapi/file_stream_writer.h"
 #include "storage/browser/fileapi/file_system_context.h"
 #include "storage/browser/fileapi/file_system_operation.h"
 #include "storage/browser/fileapi/file_system_operation_context.h"
 #include "storage/browser/fileapi/isolated_context.h"
 #include "storage/browser/fileapi/native_file_util.h"
@@ skipping 33 matching lines @@
 }
 
 void IsolatedFileSystemBackend::Initialize(FileSystemContext* context) {
 }
 
 void IsolatedFileSystemBackend::ResolveURL(
     const FileSystemURL& url,
     OpenFileSystemMode mode,
     const OpenFileSystemCallback& callback) {
   // We never allow opening a new isolated FileSystem via usual ResolveURL.
-  base::MessageLoopProxy::current()->PostTask(
+  base::ThreadTaskRunnerHandle::Get()->PostTask(
       FROM_HERE,
       base::Bind(callback,
                  GURL(),
                  std::string(),
                  base::File::FILE_ERROR_SECURITY));
 }
 
 AsyncFileUtil* IsolatedFileSystemBackend::GetAsyncFileUtil(
     FileSystemType type) {
   switch (type) {
@@ skipping 83 matching lines @@
     FileSystemType type) const {
   return NULL;
 }
 
 const AccessObserverList* IsolatedFileSystemBackend::GetAccessObservers(
     FileSystemType type) const {
   return NULL;
 }
 
 }  // namespace storage