Worker: Remove WorkerLoaderProxy for clean-up

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

Index: third_party/WebKit/Source/modules/compositorworker/AnimationWorkletThread.h
diff --git a/third_party/WebKit/Source/modules/compositorworker/AnimationWorkletThread.h b/third_party/WebKit/Source/modules/compositorworker/AnimationWorkletThread.h
index 76747c9a0d44735f6df6c3317180b26c173a1b4e..289c74f8e0e471a6d412d8bb6d35b0304de0d6d3 100644
--- a/third_party/WebKit/Source/modules/compositorworker/AnimationWorkletThread.h
+++ b/third_party/WebKit/Source/modules/compositorworker/AnimationWorkletThread.h
@@ -17,7 +17,7 @@ class MODULES_EXPORT AnimationWorkletThread final
     : public AbstractAnimationWorkletThread {
  public:
   static std::unique_ptr<AnimationWorkletThread> Create(
-      PassRefPtr<WorkerLoaderProxy>,
+      ThreadableLoadingContext*,
       WorkerReportingProxy&);
   ~AnimationWorkletThread() override;
 
@@ -26,7 +26,7 @@ class MODULES_EXPORT AnimationWorkletThread final
       std::unique_ptr<WorkerThreadStartupData>) final;
 
  private:
-  AnimationWorkletThread(PassRefPtr<WorkerLoaderProxy>, WorkerReportingProxy&);
+  AnimationWorkletThread(ThreadableLoadingContext*, WorkerReportingProxy&);
 };
 
 }  // namespace blink