Remove all remaining traces of MessageLoopProxy.

chrome/browser/extensions/api/messaging/native_message_host_chromeos.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 "extensions/browser/api/messaging/native_message_host.h"
 
 #include <memory>
 #include <string>
 #include <utility>
 
@@ skipping 82 matching lines @@
   std::unique_ptr<NativeMessageHost> (*create_function)();
 };
 
 std::unique_ptr<NativeMessageHost> CreateIt2MeHost() {
   std::unique_ptr<remoting::It2MeHostFactory> host_factory(
       new remoting::It2MeHostFactory());
   host_factory->set_policy_service(g_browser_process->policy_service());
   std::unique_ptr<remoting::ChromotingHostContext> context =
       remoting::ChromotingHostContext::CreateForChromeOS(
           make_scoped_refptr(g_browser_process->system_request_context()),
-          content::BrowserThread::GetMessageLoopProxyForThread(
+          content::BrowserThread::GetTaskRunnerForThread(
               content::BrowserThread::IO),
-          content::BrowserThread::GetMessageLoopProxyForThread(
+          content::BrowserThread::GetTaskRunnerForThread(
               content::BrowserThread::UI),
-          content::BrowserThread::GetMessageLoopProxyForThread(
+          content::BrowserThread::GetTaskRunnerForThread(
               content::BrowserThread::FILE));
   std::unique_ptr<NativeMessageHost> host(
       new remoting::It2MeNativeMessagingHost(std::move(context),
                                              std::move(host_factory)));
   return host;
 }
 
 // If you modify the list of allowed_origins, don't forget to update
 // remoting/host/it2me/com.google.chrome.remote_assistance.json.jinja2
 // to keep the two lists in sync.
@@ skipping 55 matching lines @@
       }
       *error = kForbiddenError;
       return nullptr;
     }
   }
   *error = kNotFoundError;
   return nullptr;
 }
 
 }  // namespace extensions