Worker: Pass ParentFrameTaskRunners via WorkerThread::start() instead of the ctor

third_party/WebKit/Source/core/workers/SharedWorkerThread.h

Index: third_party/WebKit/Source/core/workers/SharedWorkerThread.h
diff --git a/third_party/WebKit/Source/core/workers/SharedWorkerThread.h b/third_party/WebKit/Source/core/workers/SharedWorkerThread.h
index 95097500d13ae6db3462d7a0b69c94cc91b72b82..88ea5415725fd47ec9d492507797ce8613381d37 100644
--- a/third_party/WebKit/Source/core/workers/SharedWorkerThread.h
+++ b/third_party/WebKit/Source/core/workers/SharedWorkerThread.h
@@ -44,8 +44,7 @@ class CORE_EXPORT SharedWorkerThread : public WorkerThread {
   static std::unique_ptr<SharedWorkerThread> create(
       const String& name,
       PassRefPtr<WorkerLoaderProxy>,
-      WorkerReportingProxy&,
-      ParentFrameTaskRunners*);
+      WorkerReportingProxy&);
   ~SharedWorkerThread() override;
 
   WorkerBackingThread& workerBackingThread() override {
@@ -60,8 +59,7 @@ class CORE_EXPORT SharedWorkerThread : public WorkerThread {
  private:
   SharedWorkerThread(const String& name,
                      PassRefPtr<WorkerLoaderProxy>,
-                     WorkerReportingProxy&,
-                     ParentFrameTaskRunners*);
+                     WorkerReportingProxy&);
 
   std::unique_ptr<WorkerBackingThread> m_workerBackingThread;
   String m_name;