Replace URLDataSource::MessageLoopForRequestPath() with TaskRunnerForRequestPath().

content/public/browser/url_data_source.cc

 // Copyright (c) 2013 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 "content/public/browser/url_data_source.h"
 
 #include "content/browser/webui/url_data_manager.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/common/url_constants.h"
 #include "net/url_request/url_request.h"
 
 namespace content {
 
 void URLDataSource::Add(BrowserContext* browser_context,
                         URLDataSource* source) {
   URLDataManager::AddDataSource(browser_context, source);
 }
 
-base::MessageLoop* URLDataSource::MessageLoopForRequestPath(
-    const std::string& path) const {
-  return BrowserThread::UnsafeGetMessageLoopForThread(BrowserThread::UI);
+scoped_refptr<base::SingleThreadTaskRunner>
+URLDataSource::TaskRunnerForRequestPath(const std::string& path) const {
+  return BrowserThread::GetTaskRunnerForThread(BrowserThread::UI);
 }
 
 bool URLDataSource::ShouldReplaceExistingSource() const {
   return true;
 }
 
 bool URLDataSource::AllowCaching() const {
   return true;
 }
 
@@ skipping 42 matching lines @@
 std::string URLDataSource::GetAccessControlAllowOriginForOrigin(
     const std::string& origin) const {
   return std::string();
 }
 
 bool URLDataSource::IsGzipped(const std::string& path) const {
   return false;
 }
 
 }  // namespace content