[DO NOT COMMIT] Set ServiceWorker initiated task highest priority

third_party/WebKit/Source/web/ServiceWorkerGlobalScopeProxy.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 43 matching lines @@
 #include "modules/serviceworkers/ExtendableEvent.h"
 #include "modules/serviceworkers/ExtendableMessageEvent.h"
 #include "modules/serviceworkers/FetchEvent.h"
 #include "modules/serviceworkers/ForeignFetchEvent.h"
 #include "modules/serviceworkers/InstallEvent.h"
 #include "modules/serviceworkers/ServiceWorkerClient.h"
 #include "modules/serviceworkers/ServiceWorkerGlobalScope.h"
 #include "modules/serviceworkers/ServiceWorkerWindowClient.h"
 #include "modules/serviceworkers/WaitUntilObserver.h"
 #include "platform/RuntimeEnabledFeatures.h"
+#include "platform/WebFrameScheduler.h"
 #include "public/platform/modules/notifications/WebNotificationData.h"
 #include "public/platform/modules/serviceworker/WebServiceWorkerEventResult.h"
 #include "public/platform/modules/serviceworker/WebServiceWorkerRequest.h"
 #include "public/web/WebSerializedScriptValue.h"
 #include "public/web/modules/serviceworker/WebServiceWorkerContextClient.h"
 #include "web/WebEmbeddedWorkerImpl.h"
 #include "wtf/Assertions.h"
 #include "wtf/Functional.h"
 #include "wtf/PtrUtil.h"
 #include <memory>
@@ skipping 387 matching lines @@
     : m_embeddedWorker(&embeddedWorker),
       m_document(&document),
       m_client(&client),
       m_workerGlobalScope(nullptr) {
   // ServiceWorker can sometimes run tasks that are initiated by/associated with
   // a document's frame but these documents can be from a different process. So
   // we intentionally populate the task runners with null document in order to
   // use the thread's default task runner. Note that |m_document| should not be
   // used as it's a dummy document for loading that doesn't represent the frame
   // of any associated document.
-  m_parentFrameTaskRunners = ParentFrameTaskRunners::create(nullptr);
+  m_parentFrameTaskRunners = ParentFrameTaskRunners::create(document.frame());
+  document.frame()->frameScheduler()->setMaximumPriorityForLabTest();
 }
 
 void ServiceWorkerGlobalScopeProxy::detach() {
   m_embeddedWorker = nullptr;
   m_document = nullptr;
   m_client = nullptr;
   m_workerGlobalScope = nullptr;
 }
 
 WebServiceWorkerContextClient& ServiceWorkerGlobalScopeProxy::client() const {
   DCHECK(m_client);
   return *m_client;
 }
 
 Document& ServiceWorkerGlobalScopeProxy::document() const {
   DCHECK(m_document);
   return *m_document;
 }
 
 ServiceWorkerGlobalScope* ServiceWorkerGlobalScopeProxy::workerGlobalScope()
     const {
   DCHECK(m_workerGlobalScope);
   return m_workerGlobalScope;
 }
 
 }  // namespace blink