Refactor ResourceHandler API.

content/browser/loader/navigation_resource_handler.h

 // Copyright 2014 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_NAVIGATION_RESOURCE_HANDLER_H_
 #define CONTENT_BROWSER_LOADER_NAVIGATION_RESOURCE_HANDLER_H_
 
 #include "base/macros.h"
 #include "content/browser/loader/resource_handler.h"
 #include "content/browser/loader/stream_writer.h"
@@ skipping 25 matching lines @@
   void Cancel();
 
   // Called to the loader to resume a paused redirect.
   void FollowRedirect();
 
   // Called to proceed with the response.
   void ProceedWithResponse();
 
   // ResourceHandler implementation.
   void SetController(ResourceController* controller) override;
-  bool OnRequestRedirected(const net::RedirectInfo& redirect_info,
+  void 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;
+                           bool* defer_or_cancel) override;
+  void OnResponseStarted(ResourceResponse* response,
+                         bool* defer_or_cancel) override;
+  void OnWillStart(const GURL& url, bool* defer_or_cancel) override;
   bool OnWillRead(scoped_refptr<net::IOBuffer>* buf,
                   int* buf_size,
                   int min_size) override;
-  bool OnReadCompleted(int bytes_read, bool* defer) override;
+  void OnReadCompleted(int bytes_read, bool* defer_or_cancel) override;
   void OnResponseCompleted(const net::URLRequestStatus& status,
                            bool* defer) override;
   void OnDataDownloaded(int bytes_downloaded) override;
 
  private:
   // Clears |core_| and its reference to the resource handler. After calling
   // this, the lifetime of the request is no longer tied to |core_|.
   void DetachFromCore();
 
   NavigationURLLoaderImplCore* core_;
   StreamWriter writer_;
   ResourceDispatcherHostDelegate* resource_dispatcher_host_delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(NavigationResourceHandler);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_LOADER_NAVIGATION_RESOURCE_HANDLER_H_