Refactor ResourceHandler API.

content/browser/loader/sync_resource_handler.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_SYNC_RESOURCE_HANDLER_H_
 #define CONTENT_BROWSER_LOADER_SYNC_RESOURCE_HANDLER_H_
 
 #include <stdint.h>
 
 #include <string>
 
 #include "content/browser/loader/resource_dispatcher_host_impl.h"
 #include "content/browser/loader/resource_handler.h"
 #include "content/public/common/resource_response.h"
 
 namespace net {
 class IOBuffer;
 class URLRequest;
 }
 
 namespace content {
+class ResourceController;
 
 // Used to complete a synchronous resource request in response to resource load
 // events from the resource dispatcher host.
 class SyncResourceHandler : public ResourceHandler {
  public:
   using SyncLoadResultCallback =
       ResourceDispatcherHostImpl::SyncLoadResultCallback;
 
   SyncResourceHandler(net::URLRequest* request,
                       const SyncLoadResultCallback& sync_result_handler,
                       ResourceDispatcherHostImpl* resource_dispatcher_host);
   ~SyncResourceHandler() override;
 
-  bool OnRequestRedirected(const net::RedirectInfo& redirect_info,
-                           ResourceResponse* response,
-                           bool* defer) override;
-  bool OnResponseStarted(ResourceResponse* response, bool* defer) override;
-  bool OnWillStart(const GURL& url, bool* defer) override;
+  void OnRequestRedirected(
+      const net::RedirectInfo& redirect_info,
+      ResourceResponse* response,
+      std::unique_ptr<ResourceController> controller) override;
+  void OnResponseStarted(
+      ResourceResponse* response,
+      std::unique_ptr<ResourceController> controller) override;
+  void OnWillStart(const GURL& url,
+                   std::unique_ptr<ResourceController> controller) override;
   bool OnWillRead(scoped_refptr<net::IOBuffer>* buf,
                   int* buf_size,
                   int min_size) override;
-  bool OnReadCompleted(int bytes_read, bool* defer) override;
-  void OnResponseCompleted(const net::URLRequestStatus& status,
-                           bool* defer) override;
+  void OnReadCompleted(int bytes_read,
+                       std::unique_ptr<ResourceController> controller) override;
+  void OnResponseCompleted(
+      const net::URLRequestStatus& status,
+      std::unique_ptr<ResourceController> controller) override;
   void OnDataDownloaded(int bytes_downloaded) override;
 
  private:
   enum { kReadBufSize = 3840 };
 
   scoped_refptr<net::IOBuffer> read_buffer_;
 
   SyncLoadResult result_;
   SyncLoadResultCallback result_handler_;
   ResourceDispatcherHostImpl* rdh_;
   int64_t total_transfer_size_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_LOADER_SYNC_RESOURCE_HANDLER_H_