Remove all remaining traces of MessageLoopProxy.

chrome/browser/ui/webui/settings/certificates_handler.cc

 // Copyright 2016 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/ui/webui/settings/certificates_handler.h"
 
 #include <errno.h>
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 282 matching lines @@
 base::CancelableTaskTracker::TaskId FileAccessProvider::StartRead(
     const base::FilePath& path,
     const ReadCallback& callback,
     base::CancelableTaskTracker* tracker) {
   // Owned by reply callback posted below.
   int* saved_errno = new int(0);
   std::string* data = new std::string();
 
   // Post task to file thread to read file.
   return tracker->PostTaskAndReply(
-      BrowserThread::GetMessageLoopProxyForThread(BrowserThread::FILE).get(),
+      BrowserThread::GetTaskRunnerForThread(BrowserThread::FILE).get(),
       FROM_HERE,
       base::Bind(&FileAccessProvider::DoRead, this, path, saved_errno, data),
       base::Bind(callback, base::Owned(saved_errno), base::Owned(data)));
 }
 
 base::CancelableTaskTracker::TaskId FileAccessProvider::StartWrite(
     const base::FilePath& path,
     const std::string& data,
     const WriteCallback& callback,
     base::CancelableTaskTracker* tracker) {
   // Owned by reply callback posted below.
   int* saved_errno = new int(0);
   int* bytes_written = new int(0);
 
   // Post task to file thread to write file.
   return tracker->PostTaskAndReply(
-      BrowserThread::GetMessageLoopProxyForThread(BrowserThread::FILE).get(),
+      BrowserThread::GetTaskRunnerForThread(BrowserThread::FILE).get(),
       FROM_HERE, base::Bind(&FileAccessProvider::DoWrite, this, path, data,
                             saved_errno, bytes_written),
       base::Bind(callback, base::Owned(saved_errno),
                  base::Owned(bytes_written)));
 }
 
 void FileAccessProvider::DoRead(const base::FilePath& path,
                                 int* saved_errno,
                                 std::string* data) {
   bool success = base::ReadFileToString(path, data);
@@ skipping 810 matching lines @@
   error_info->Set(kCertificateErrors,
                   base::WrapUnique(cert_error_list.release()));
   RejectCallback(*error_info);
 }
 
 gfx::NativeWindow CertificatesHandler::GetParentWindow() const {
   return web_ui()->GetWebContents()->GetTopLevelNativeWindow();
 }
 
 }  // namespace settings