[chrome/browser/chromeos/drive] Avoid use of MessageLoopProxy by use of TTRH

chrome/browser/chromeos/drive/fileapi/fileapi_worker.cc

 // Copyright 2014 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/fileapi/fileapi_worker.h"
 
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "base/task_runner_util.h"
+#include "base/thread_task_runner_handle.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "chrome/browser/chromeos/drive/drive.pb.h"
 #include "chrome/browser/chromeos/drive/file_errors.h"
 #include "chrome/browser/chromeos/drive/file_system_interface.h"
 #include "chrome/browser/chromeos/drive/file_system_util.h"
 #include "chrome/browser/chromeos/drive/resource_entry_conversion.h"
 #include "content/public/browser/browser_thread.h"
 #include "storage/browser/fileapi/file_system_url.h"
 #include "storage/common/fileapi/directory_entry.h"
 
@@ skipping 313 matching lines @@
   // Returns an error if any unsupported flag is found.
   if (file_flags & ~(base::File::FLAG_OPEN |
                      base::File::FLAG_CREATE |
                      base::File::FLAG_OPEN_ALWAYS |
                      base::File::FLAG_CREATE_ALWAYS |
                      base::File::FLAG_OPEN_TRUNCATED |
                      base::File::FLAG_READ |
                      base::File::FLAG_WRITE |
                      base::File::FLAG_WRITE_ATTRIBUTES |
                      base::File::FLAG_APPEND)) {
-    base::MessageLoopProxy::current()->PostTask(
+    base::ThreadTaskRunnerHandle::Get()->PostTask(
         FROM_HERE,
         base::Bind(callback,
                    Passed(base::File(base::File::FILE_ERROR_FAILED)),
                    base::Closure()));
     return;
   }
 
   file_system->OpenFile(
       file_path, GetOpenMode(file_flags),
       std::string(),  // no mime type; guess from file_path
       base::Bind(&OpenFileAfterFileSystemOpenFile, file_flags, callback));
 }
 
 void TouchFile(const base::FilePath& file_path,
                const base::Time& last_access_time,
                const base::Time& last_modified_time,
                const StatusCallback& callback,
                FileSystemInterface* file_system) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   file_system->TouchFile(file_path, last_access_time, last_modified_time,
                          base::Bind(&RunStatusCallbackByFileError, callback));
 
 }
 
 }  // namespace fileapi_internal
 }  // namespace drive