Use ParentFrameTaskRunners in WorkerLoaderProxyProvider::postTaskToLoader impls

third_party/WebKit/Source/web/WebEmbeddedWorkerImpl.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 245 matching lines @@
                              message.columnNumber, nullptr)));
 }
 
 void WebEmbeddedWorkerImpl::postMessageToPageInspector(const String& message) {
   m_workerInspectorProxy->dispatchMessageFromWorker(message);
 }
 
 void WebEmbeddedWorkerImpl::postTaskToLoader(
     const WebTraceLocation& location,
     std::unique_ptr<ExecutionContextTask> task) {
-  // TODO(hiroshige,yuryu): Make this not use ExecutionContextTask and
-  // consider using m_mainThreadTaskRunners->get(TaskType::Networking)
-  // instead.
-  m_mainFrame->frame()->document()->postTask(location, std::move(task));
+  m_mainThreadTaskRunners->get(TaskType::Networking)
+      ->postTask(
+          BLINK_FROM_HERE,
+          crossThreadBind(
+              &ExecutionContextTask::performTaskIfContextIsValid,
+              WTF::passed(std::move(task)),
+              wrapCrossThreadWeakPersistent(m_mainFrame->frame()->document())));
 }
 
 void WebEmbeddedWorkerImpl::postTaskToWorkerGlobalScope(
     const WebTraceLocation& location,
     std::unique_ptr<ExecutionContextTask> task) {
   if (m_askedToTerminate || !m_workerThread)
     return;
   m_workerThread->postTask(location, std::move(task));
 }
 
@@ skipping 187 matching lines @@
       *this, *document, *m_workerContextClient);
   m_loaderProxy = WorkerLoaderProxy::create(this);
   m_workerThread =
       ServiceWorkerThread::create(m_loaderProxy, *m_workerGlobalScopeProxy);
   m_workerThread->start(std::move(startupData));
   m_workerInspectorProxy->workerThreadCreated(document, m_workerThread.get(),
                                               scriptURL);
 }
 
 }  // namespace blink