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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 NET_URL_REQUEST_URL_REQUEST_CONTEXT_GETTER_H_
#define NET_URL_REQUEST_URL_REQUEST_CONTEXT_GETTER_H_
#include "base/memory/ref_counted.h"
#include "base/sequenced_task_runner_helpers.h"
#include "net/base/net_export.h"
namespace base {
class SingleThreadTaskRunner;
} // namespace base
namespace net {
class CookieStore;
class URLRequestContext;
struct URLRequestContextGetterTraits;
// Interface for retrieving an net::URLRequestContext.
class NET_EXPORT URLRequestContextGetter
: public base::RefCountedThreadSafe<URLRequestContextGetter,
URLRequestContextGetterTraits> {
public:
virtual URLRequestContext* GetURLRequestContext() = 0;
// Returns a SingleThreadTaskRunner corresponding to the thread on
// which the network IO happens (the thread on which the returned
// net::URLRequestContext may be used).
virtual scoped_refptr<base::SingleThreadTaskRunner>
GetNetworkTaskRunner() const = 0;
protected:
friend class base::RefCountedThreadSafe<URLRequestContextGetter,
URLRequestContextGetterTraits>;
friend class base::DeleteHelper<URLRequestContextGetter>;
friend struct URLRequestContextGetterTraits;
URLRequestContextGetter();
virtual ~URLRequestContextGetter();
private:
// OnDestruct is meant to ensure deletion on the thread on which the request
// IO happens.
void OnDestruct() const;
};
struct URLRequestContextGetterTraits {
static void Destruct(const URLRequestContextGetter* context_getter) {
context_getter->OnDestruct();
}
};
// For use in shimming a URLRequestContext into a URLRequestContextGetter.
class NET_EXPORT TrivialURLRequestContextGetter
: public URLRequestContextGetter {
public:
TrivialURLRequestContextGetter(
net::URLRequestContext* context,
const scoped_refptr<base::SingleThreadTaskRunner>& main_task_runner);
// net::URLRequestContextGetter implementation:
net::URLRequestContext* GetURLRequestContext() override;
scoped_refptr<base::SingleThreadTaskRunner> GetNetworkTaskRunner()
const override;
private:
~TrivialURLRequestContextGetter() override;
net::URLRequestContext* context_;
const scoped_refptr<base::SingleThreadTaskRunner> main_task_runner_;
DISALLOW_COPY_AND_ASSIGN(TrivialURLRequestContextGetter);
};
} // namespace net
#endif // NET_URL_REQUEST_URL_REQUEST_CONTEXT_GETTER_H_
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