WorkerLoaderProxy: stop accessing cross-thread execution context

third_party/WebKit/Source/core/loader/WorkerThreadableLoader.h

 /*
  * Copyright (C) 2009 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 127 matching lines @@
     USING_GARBAGE_COLLECTED_MIXIN(MainThreadLoaderHolder);
     USING_PRE_FINALIZER(MainThreadLoaderHolder, cancel);
 
    public:
     static void createAndStart(WorkerThreadableLoader*,
                                PassRefPtr<WorkerLoaderProxy>,
                                WorkerThreadLifecycleContext*,
                                std::unique_ptr<CrossThreadResourceRequestData>,
                                const ThreadableLoaderOptions&,
                                const ResourceLoaderOptions&,
-                               PassRefPtr<WaitableEventWithTasks>,
-                               ExecutionContext*);
+                               PassRefPtr<WaitableEventWithTasks>);
     ~MainThreadLoaderHolder() override;
 
     void overrideTimeout(unsigned long timeoutMillisecond);
     void cancel();
 
     void didSendData(unsigned long long bytesSent,
                      unsigned long long totalBytesToBeSent) override;
     void didReceiveRedirectTo(const KURL&) override;
     void didReceiveResponse(unsigned long identifier,
                             const ResourceResponse&,
@@ skipping 56 matching lines @@
   ResourceLoaderOptions m_resourceLoaderOptions;
   BlockingBehavior m_blockingBehavior;
 
   // |*m_mainThreadLoaderHolder| lives in the main thread.
   CrossThreadPersistent<MainThreadLoaderHolder> m_mainThreadLoaderHolder;
 };
 
 }  // namespace blink
 
 #endif  // WorkerThreadableLoader_h