Add MessageLoopProxy::current

base/files/file_path_watcher_mac.cc

 // Copyright (c) 2011 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 "base/files/file_path_watcher.h"
 
 #include <fcntl.h>
 #include <sys/event.h>
 #include <sys/param.h>
 
@@ skipping 409 matching lines @@
                                 FilePathWatcher::Delegate* delegate) {
   DCHECK(MessageLoopForIO::current());
   DCHECK(target_.value().empty());  // Can only watch one path.
   DCHECK(delegate);
   DCHECK_EQ(kqueue_, -1);
 
   delegate_ = delegate;
   target_ = path;
 
   MessageLoop::current()->AddDestructionObserver(this);
-  io_message_loop_ = base::MessageLoopProxy::CreateForCurrentThread();
+  io_message_loop_ = base::MessageLoopProxy::current();
 
   kqueue_ = kqueue();
   if (kqueue_ == -1) {
     PLOG(ERROR) << "kqueue";
     return false;
   }
 
   int last_entry = EventsForPath(target_, &events_);
   CHECK_NE(last_entry, 0);
 
@@ skipping 43 matching lines @@
 }
 
 }  // namespace
 
 FilePathWatcher::FilePathWatcher() {
   impl_ = new FilePathWatcherImpl();
 }
 
 }  // namespace files
 }  // namespace base