Refactor ResourceHandler API.

content/browser/loader/throttling_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_THROTTLING_RESOURCE_HANDLER_H_
 #define CONTENT_BROWSER_LOADER_THROTTLING_RESOURCE_HANDLER_H_
 
 #include <stddef.h>
 
+#include <memory>
+
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_vector.h"
 #include "content/browser/loader/layered_resource_handler.h"
 #include "content/public/browser/resource_controller.h"
 #include "net/url_request/redirect_info.h"
 #include "url/gurl.h"
 
 namespace net {
 class URLRequest;
 }
 
 namespace content {
 
 class ResourceThrottle;
 struct ResourceResponse;
 
 // Used to apply a list of ResourceThrottle instances to an URLRequest.
 class ThrottlingResourceHandler : public LayeredResourceHandler,
                                   public ResourceController {
  public:
   // Takes ownership of the ResourceThrottle instances.
   ThrottlingResourceHandler(std::unique_ptr<ResourceHandler> next_handler,
                             net::URLRequest* request,
                             ScopedVector<ResourceThrottle> throttles);
   ~ThrottlingResourceHandler() override;
 
   // LayeredResourceHandler overrides:
-  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;
 
   // ResourceController implementation:
   void Cancel() override;
   void CancelAndIgnore() override;
   void CancelWithError(int error_code) override;
   void Resume() override;
 
  private:
   void ResumeStart();
   void ResumeRedirect();
@@ skipping 17 matching lines @@
   GURL deferred_url_;
   net::RedirectInfo deferred_redirect_;
   scoped_refptr<ResourceResponse> deferred_response_;
 
   bool cancelled_by_resource_throttle_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_LOADER_THROTTLING_RESOURCE_HANDLER_H_