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// 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_RENDERER_HOST_DOOMED_RESOURCE_HANDLER_H_
#define CONTENT_BROWSER_RENDERER_HOST_DOOMED_RESOURCE_HANDLER_H_
#pragma once
#include "base/memory/ref_counted.h"
#include "content/browser/renderer_host/resource_handler.h"
// ResourceHandler that DCHECKs on all events but canceling and failing of
// requests while activated for a URLRequest.
class DoomedResourceHandler : public ResourceHandler {
public:
// As the DoomedResourceHandler is constructed and substituted from code
// of another ResourceHandler, we need to make sure that this other handler
// does not lose its last reference and gets destroyed by being substituted.
// Therefore, we retain a reference to |old_handler| that prevents the
// destruction.
explicit DoomedResourceHandler(ResourceHandler* old_handler);
// ResourceHandler implementation:
virtual bool OnUploadProgress(int request_id,
uint64 position,
uint64 size) OVERRIDE;
virtual bool OnRequestRedirected(int request_id,
const GURL& new_url,
content::ResourceResponse* response,
bool* defer) OVERRIDE;
virtual bool OnResponseStarted(int request_id,
content::ResourceResponse* response) OVERRIDE;
virtual bool OnWillStart(int request_id,
const GURL& url,
bool* defer) OVERRIDE;
virtual bool OnWillRead(int request_id,
net::IOBuffer** buf,
int* buf_size,
int min_size) OVERRIDE;
virtual bool OnReadCompleted(int request_id,
int* bytes_read) OVERRIDE;
virtual bool OnResponseCompleted(int request_id,
const net::URLRequestStatus& status,
const std::string& security_info) OVERRIDE;
virtual void OnRequestClosed() OVERRIDE;
virtual void OnDataDownloaded(int request_id,
int bytes_downloaded) OVERRIDE;
private:
virtual ~DoomedResourceHandler();
scoped_refptr<ResourceHandler> old_handler_;
DISALLOW_COPY_AND_ASSIGN(DoomedResourceHandler);
};
#endif // CONTENT_BROWSER_RENDERER_HOST_DOOMED_RESOURCE_HANDLER_H_
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