(WIP) Worker: Merge ParentFrameTaskRunners into TaskRunnerHelper

third_party/WebKit/Source/web/WebEmbeddedWorkerImpl.h

Index: third_party/WebKit/Source/web/WebEmbeddedWorkerImpl.h
diff --git a/third_party/WebKit/Source/web/WebEmbeddedWorkerImpl.h b/third_party/WebKit/Source/web/WebEmbeddedWorkerImpl.h
index 78856bc64e0419c1e5b711fab20dd003487ab719..7a8af5ec97aa89abf84ada40ac5cbb5412994d61 100644
--- a/third_party/WebKit/Source/web/WebEmbeddedWorkerImpl.h
+++ b/third_party/WebKit/Source/web/WebEmbeddedWorkerImpl.h
@@ -43,7 +43,6 @@
 
 namespace blink {
 
-class ParentFrameTaskRunners;
 class ServiceWorkerGlobalScopeProxy;
 class WebLocalFrameImpl;
 class WebServiceWorkerNetworkProvider;
@@ -123,10 +122,6 @@ class WebEmbeddedWorkerImpl final : public WebEmbeddedWorker,
   // Kept around only while main script loading is ongoing.
   RefPtr<WorkerScriptLoader> m_mainScriptLoader;
 
-  // Owned by the main thread, but will be accessed by the worker when
-  // posting tasks.
-  CrossThreadPersistent<ParentFrameTaskRunners> m_mainThreadTaskRunners;
-
   std::unique_ptr<WorkerThread> m_workerThread;
   RefPtr<WorkerLoaderProxy> m_loaderProxy;
   Persistent<ServiceWorkerGlobalScopeProxy> m_workerGlobalScopeProxy;