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// Copyright (c) 2010 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 CHROME_BROWSER_NET_PRERENDER_INTERCEPTOR_H_
#define CHROME_BROWSER_NET_PRERENDER_INTERCEPTOR_H_
#include "base/basictypes.h"
#include "base/callback.h"
#include "base/scoped_ptr.h"
#include "base/task.h"
#include "net/url_request/url_request.h"
class GURL;
namespace chrome_browser_net {
// The PrerenderInterceptor watches prefetch requests, and when
// they are for type text/html, notifies the prerendering
// system about the fetch so it may consider the URL.
class PrerenderInterceptor : public net::URLRequest::Interceptor {
public:
PrerenderInterceptor();
virtual ~PrerenderInterceptor();
// net::URLRequest::Interceptor overrides. We only care about
// MaybeInterceptResponse, but must capture MaybeIntercept since
// it is pure virtual.
virtual net::URLRequestJob* MaybeIntercept(net::URLRequest* request);
virtual net::URLRequestJob* MaybeInterceptResponse(net::URLRequest* request);
private:
friend class PrerenderInterceptorTest;
typedef Callback1<const GURL&>::Type PrerenderInterceptorCallback;
// This constructor is provided for the unit test only, to provide
// an an alternative dispatch target for the test only. The callback
// parameter is owned and deleted by this object.
explicit PrerenderInterceptor(PrerenderInterceptorCallback* callback);
void RunCallbackFromUIThread(const GURL& url);
void PrerenderDispatch(const GURL& url);
scoped_ptr<PrerenderInterceptorCallback> callback_;
DISALLOW_COPY_AND_ASSIGN(PrerenderInterceptor);
};
} // namespace chrome_browser_net
#endif // CHROME_BROWSER_NET_PRERENDER_INTERCEPTOR_H_
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