Use ParentFrameTaskRunners in WorkerLoaderProxyProvider::postTaskToLoader impls

third_party/WebKit/Source/core/workers/ThreadedMessagingProxyBase.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 "core/workers/ThreadedMessagingProxyBase.h"
 
 #include "bindings/core/v8/SourceLocation.h"
 #include "core/dom/Document.h"
 #include "core/frame/Deprecation.h"
 #include "core/loader/DocumentLoader.h"
@@ skipping 56 matching lines @@
     return;
 
   DCHECK(m_workerThread);
   m_workerThread->postTask(location, std::move(task));
 }
 
 void ThreadedMessagingProxyBase::postTaskToLoader(
     const WebTraceLocation& location,
     std::unique_ptr<ExecutionContextTask> task) {
   DCHECK(getExecutionContext()->isDocument());
-  // TODO(hiroshige,yuryu): Make this not use ExecutionContextTask and use
-  // m_parentFrameTaskRunners->get(TaskType::Networking) instead.
-  getExecutionContext()->postTask(location, std::move(task));
+  m_parentFrameTaskRunners->get(TaskType::Networking)
+      ->postTask(BLINK_FROM_HERE,
+                 crossThreadBind(
+                     &ExecutionContextTask::performTaskIfContextIsValid,
+                     WTF::passed(std::move(task)),
+                     wrapCrossThreadWeakPersistent(getExecutionContext())));
 }
 
 void ThreadedMessagingProxyBase::countFeature(UseCounter::Feature feature) {
   DCHECK(isParentContextThread());
   UseCounter::count(m_executionContext, feature);
 }
 
 void ThreadedMessagingProxyBase::countDeprecation(UseCounter::Feature feature) {
   DCHECK(isParentContextThread());
   Deprecation::countDeprecation(m_executionContext, feature);
@@ skipping 71 matching lines @@
 }
 
 bool ThreadedMessagingProxyBase::isParentContextThread() const {
   // TODO(nhiroki): Nested worker is not supported yet, so the parent context
   // thread should be equal to the main thread (http://crbug.com/31666).
   DCHECK(getExecutionContext()->isDocument());
   return isMainThread();
 }
 
 }  // namespace blink