Use per-frame TaskRunner instead of thread's default in DataConsumerHandle

third_party/WebKit/Source/modules/fetch/FetchDataConsumerHandle.cpp

 // 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 "modules/fetch/FetchDataConsumerHandle.h"
 
+#include "public/platform/WebTaskRunner.h"
+
 namespace blink {
 
-std::unique_ptr<WebDataConsumerHandle::Reader> FetchDataConsumerHandle::obtainReader(Client* client)
+std::unique_ptr<WebDataConsumerHandle::Reader> FetchDataConsumerHandle::obtainReader(Client* client, std::unique_ptr<WebTaskRunner> readerTaskRunner)
 {
-    return obtainFetchDataReader(client);
+    return obtainFetchDataReader(client, std::move(readerTaskRunner));
 }
 
 } // namespace blink