chrome/browser: Remove use of MessageLoopProxy and deprecated MessageLoop APIs

chrome/browser/sync_file_system/syncable_file_system_util.cc

 // Copyright 2013 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/sync_file_system/syncable_file_system_util.h"
 
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/location.h"
+#include "base/single_thread_task_runner.h"
 #include "base/strings/string_util.h"
+#include "base/thread_task_runner_handle.h"
 #include "storage/browser/fileapi/external_mount_points.h"
 #include "storage/browser/fileapi/file_observers.h"
 #include "storage/browser/fileapi/file_system_context.h"
 #include "storage/common/fileapi/file_system_util.h"
 
 using storage::ExternalMountPoints;
 using storage::FileSystemContext;
 using storage::FileSystemURL;
 
 namespace sync_file_system {
@@ skipping 80 matching lines @@
   *url = deserialized;
   return true;
 }
 
 base::FilePath GetSyncFileSystemDir(const base::FilePath& profile_base_dir) {
   return profile_base_dir.Append(kSyncFileSystemDir);
 }
 
 void RunSoon(const tracked_objects::Location& from_here,
              const base::Closure& callback) {
-  base::MessageLoop::current()->PostTask(from_here, callback);
+  base::ThreadTaskRunnerHandle::Get()->PostTask(from_here, callback);
 }
 
 base::Closure NoopClosure() {
   return base::Bind(&Noop);
 }
 
 }  // namespace sync_file_system