Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/web/WebDataSourceImpl.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 19 matching lines @@
 
 #ifndef WebDataSourceImpl_h
 #define WebDataSourceImpl_h
 
 #include "core/loader/DocumentLoader.h"
 #include "platform/exported/WrappedResourceRequest.h"
 #include "platform/exported/WrappedResourceResponse.h"
 #include "platform/heap/Handle.h"
 #include "platform/weborigin/KURL.h"
 #include "public/web/WebDataSource.h"
+#include "wtf/OwnPtr.h"
+#include "wtf/PassOwnPtr.h"
 #include "wtf/Vector.h"
-#include <memory>
 
 namespace blink {
 
 class WebDataSourceImpl final : public DocumentLoader, public WebDataSource {
 public:
     static WebDataSourceImpl* create(LocalFrame*, const ResourceRequest&, const SubstituteData&);
 
     static WebDataSourceImpl* fromDocumentLoader(DocumentLoader* loader)
     {
         return static_cast<WebDataSourceImpl*>(loader);
@@ skipping 24 matching lines @@
     ~WebDataSourceImpl() override;
     void detachFromFrame() override;
     String debugName() const override { return "WebDataSourceImpl"; }
 
     // Mutable because the const getters will magically sync these to the
     // latest version from WebKit.
     mutable WrappedResourceRequest m_originalRequestWrapper;
     mutable WrappedResourceRequest m_requestWrapper;
     mutable WrappedResourceResponse m_responseWrapper;
 
-    std::unique_ptr<ExtraData> m_extraData;
+    OwnPtr<ExtraData> m_extraData;
 };
 
 } // namespace blink
 
 #endif  // WebDataSourceImpl_h