Revert the merge of CrossSiteResourceHandler and NavigationResourceThrottle.

content/browser/loader/resource_loader.h

 // Copyright (c) 2012 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 CONTENT_BROWSER_LOADER_RESOURCE_LOADER_H_
 #define CONTENT_BROWSER_LOADER_RESOURCE_LOADER_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 25 matching lines @@
  public:
   ResourceLoader(std::unique_ptr<net::URLRequest> request,
                  std::unique_ptr<ResourceHandler> handler,
                  ResourceLoaderDelegate* delegate);
   ~ResourceLoader() override;
 
   void StartRequest();
   void CancelRequest(bool from_renderer);
 
   bool is_transferring() const { return is_transferring_; }
-  void MarkAsTransferring(const base::Closure& on_transfer_complete_callback);
+  void MarkAsTransferring(const scoped_refptr<ResourceResponse>& response);
   void CompleteTransfer();
 
   net::URLRequest* request() { return request_.get(); }
   ResourceRequestInfoImpl* GetRequestInfo();
 
   void ClearLoginDelegate();
 
  private:
   // net::URLRequest::Delegate implementation:
   void OnReceivedRedirect(net::URLRequest* request,
@@ skipping 65 matching lines @@
   scoped_refptr<ResourceDispatcherHostLoginDelegate> login_delegate_;
   std::unique_ptr<SSLClientAuthHandler> ssl_client_auth_handler_;
 
   base::TimeTicks read_deferral_start_time_;
 
   // Indicates that we are in a state of being transferred to a new downstream
   // consumer.  We are waiting for a notification to complete the transfer, at
   // which point we'll receive a new ResourceHandler.
   bool is_transferring_;
 
-  // Called when a navigation has finished transfer.
-  base::Closure on_transfer_complete_callback_;
-
   // Instrumentation add to investigate http://crbug.com/503306.
   // TODO(mmenke): Remove once bug is fixed.
   int times_cancelled_before_request_start_;
   bool started_request_;
   int times_cancelled_after_request_start_;
 
   base::WeakPtrFactory<ResourceLoader> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ResourceLoader);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_LOADER_RESOURCE_LOADER_H_