components: Remove use of MessageLoopProxy and deprecated MessageLoop APIs

components/signin/core/browser/signin_manager_cookie_helper.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 "components/signin/core/browser/signin_manager_cookie_helper.h"
 
 #include <vector>
 
-#include "base/message_loop/message_loop_proxy.h"
+#include "base/location.h"
+#include "base/single_thread_task_runner.h"
 #include "google_apis/gaia/gaia_urls.h"
 #include "net/cookies/cookie_monster.h"
 #include "net/url_request/url_request_context.h"
 
 SigninManagerCookieHelper::SigninManagerCookieHelper(
     net::URLRequestContextGetter* request_context_getter,
-    scoped_refptr<base::MessageLoopProxy> ui_thread,
-    scoped_refptr<base::MessageLoopProxy> io_thread)
+    scoped_refptr<base::SingleThreadTaskRunner> ui_thread,
+    scoped_refptr<base::SingleThreadTaskRunner> io_thread)
     : request_context_getter_(request_context_getter),
       ui_thread_(ui_thread),
       io_thread_(io_thread) {
   DCHECK(ui_thread_->BelongsToCurrentThread());
 }
 
 SigninManagerCookieHelper::~SigninManagerCookieHelper() {
 }
 
 void SigninManagerCookieHelper::StartFetchingGaiaCookiesOnUIThread(
@@ skipping 35 matching lines @@
   DCHECK(io_thread_->BelongsToCurrentThread());
   ui_thread_->PostTask(FROM_HERE,
       base::Bind(&SigninManagerCookieHelper::NotifyOnUIThread, this, cookies));
 }
 
 void SigninManagerCookieHelper::NotifyOnUIThread(
     const net::CookieList& cookies) {
   DCHECK(ui_thread_->BelongsToCurrentThread());
   base::ResetAndReturn(&completion_callback_).Run(cookies);
 }