Make WebThreadedDataReceiver wrap a Blink-managed object instead.

Source/core/fetch/ResourceLoader.h

 /*
  * Copyright (C) 2005, 2006, 2011 Apple 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 24 matching lines @@
 #include "public/platform/WebURLLoaderClient.h"
 #include "wtf/Forward.h"
 #include "wtf/RefCounted.h"
 
 namespace blink {
 
 class Resource;
 class KURL;
 class ResourceError;
 class ResourceLoaderHost;
+class ThreadedDataReceiver;
 
 class ResourceLoader final : public RefCountedWillBeGarbageCollectedFinalized<ResourceLoader>, protected WebURLLoaderClient {
 public:
     static PassRefPtrWillBeRawPtr<ResourceLoader> create(ResourceLoaderHost*, Resource*, const ResourceRequest&, const ResourceLoaderOptions&);
     virtual ~ResourceLoader();
     void trace(Visitor*);
 
     void start();
     void changeToSynchronous();
 
     void cancel();
     void cancel(const ResourceError&);
     void cancelIfNotFinishing();
 
     Resource* cachedResource() { return m_resource; }
     const ResourceRequest& originalRequest() const { return m_originalRequest; }
 
     void setDefersLoading(bool);
     bool defersLoading() const { return m_defersLoading; }
 
-    void attachThreadedDataReceiver(PassOwnPtr<blink::WebThreadedDataReceiver>);
+    void attachThreadedDataReceiver(PassRefPtrWillBeRawPtr<ThreadedDataReceiver>);
 
     void releaseResources();
 
     void didChangePriority(ResourceLoadPriority, int intraPriorityValue);
 
     // WebURLLoaderClient
     void willSendRequest(blink::WebURLLoader*, blink::WebURLRequest&, const blink::WebURLResponse& redirectResponse) override;
     void didSendData(blink::WebURLLoader*, unsigned long long bytesSent, unsigned long long totalBytesToBeSent) override;
     void didReceiveResponse(blink::WebURLLoader*, const blink::WebURLResponse&) override;
     void didReceiveResponse(blink::WebURLLoader*, const blink::WebURLResponse&, WebDataConsumerHandle*) override;
@@ skipping 54 matching lines @@
     ResourceLoaderState m_state;
 
     // Used for sanity checking to make sure we don't experience illegal state
     // transitions.
     ConnectionState m_connectionState;
 };
 
 }
 
 #endif