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

content/browser/webui/shared_resources_data_source.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 "content/browser/webui/shared_resources_data_source.h"
 
 #include <stddef.h>
 
 #include "base/containers/hash_tables.h"
 #include "base/files/file_path.h"
@@ skipping 127 matching lines @@
   if (extension == "svg")
     return "image/svg+xml";
 
   if (extension == "woff2")
     return "application/font-woff2";
 
   NOTREACHED() << path;
   return "text/plain";
 }
 
-base::MessageLoop* SharedResourcesDataSource::MessageLoopForRequestPath(
+scoped_refptr<base::SingleThreadTaskRunner>
+SharedResourcesDataSource::TaskRunnerForRequestPath(
     const std::string& path) const {
   return nullptr;
 }
 
 std::string
 SharedResourcesDataSource::GetAccessControlAllowOriginForOrigin(
     const std::string& origin) const {
   // For now we give access only for "chrome://*" origins.
   // According to CORS spec, Access-Control-Allow-Origin header doesn't support
   // wildcards, so we need to set its value explicitly by passing the |origin|
   // back.
   std::string allowed_origin_prefix = kChromeUIScheme;
   allowed_origin_prefix += "://";
   if (!base::StartsWith(origin, allowed_origin_prefix,
                         base::CompareCase::SENSITIVE)) {
     return "null";
   }
   return origin;
 }
 
 }  // namespace content