Worker: Remove WorkerLoaderProxy for clean-up

third_party/WebKit/Source/modules/compositorworker/CompositorWorkerThread.h

 // Copyright 2015 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.
 
 #ifndef CompositorWorkerThread_h
 #define CompositorWorkerThread_h
 
 #include "modules/ModulesExport.h"
 #include "modules/compositorworker/AbstractAnimationWorkletThread.h"
 #include <memory>
 
 namespace blink {
 
 class InProcessWorkerObjectProxy;
 
 class MODULES_EXPORT CompositorWorkerThread final
     : public AbstractAnimationWorkletThread {
  public:
   static std::unique_ptr<CompositorWorkerThread> Create(
-      PassRefPtr<WorkerLoaderProxy>,
+      ThreadableLoadingContext*,
       InProcessWorkerObjectProxy&,
       double time_origin);
   ~CompositorWorkerThread() override;
 
   InProcessWorkerObjectProxy& WorkerObjectProxy() const {
     return worker_object_proxy_;
   }
 
  protected:
   WorkerOrWorkletGlobalScope* CreateWorkerGlobalScope(
       std::unique_ptr<WorkerThreadStartupData>) override;
 
  private:
-  CompositorWorkerThread(PassRefPtr<WorkerLoaderProxy>,
+  CompositorWorkerThread(ThreadableLoadingContext*,
                          InProcessWorkerObjectProxy&,
                          double time_origin);
 
   InProcessWorkerObjectProxy& worker_object_proxy_;
   double time_origin_;
 };
 
 }  // namespace blink
 
 #endif  // CompositorWorkerThread_h