Remove all remaining traces of MessageLoopProxy.

chrome/browser/chromeos/file_manager/zip_file_creator.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 "chrome/browser/chromeos/file_manager/zip_file_creator.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/callback_helpers.h"
@@ skipping 75 matching lines @@
       base::Bind(
           &ZipFileCreator::StartProcessOnIOThread, this, base::Passed(&file)));
 }
 
 void ZipFileCreator::StartProcessOnIOThread(base::File dest_file) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
 
   base::FileDescriptor dest_fd(std::move(dest_file));
 
   UtilityProcessHost* host = UtilityProcessHost::Create(
-      this,
-      BrowserThread::GetMessageLoopProxyForThread(BrowserThread::UI).get());
+      this, BrowserThread::GetTaskRunnerForThread(BrowserThread::UI).get());
   host->SetName(
       l10n_util::GetStringUTF16(IDS_UTILITY_PROCESS_ZIP_FILE_CREATOR_NAME));
   host->SetExposedDir(src_dir_);
   host->Send(new ChromeUtilityMsg_CreateZipFile(src_dir_, src_relative_paths_,
                                                 dest_fd));
 }
 
 void ZipFileCreator::OnCreateZipFileSucceeded() {
   ReportDone(true);
 }
 
 void ZipFileCreator::OnCreateZipFileFailed() {
   ReportDone(false);
 }
 
 void ZipFileCreator::ReportDone(bool success) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
 
   // Guard against calling observer multiple times.
   if (!callback_.is_null())
     base::ResetAndReturn(&callback_).Run(success);
 }
 
 }  // namespace file_manager