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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_PUBLIC_BROWSER_RESOURCE_CONTEXT_H_
#define CONTENT_PUBLIC_BROWSER_RESOURCE_CONTEXT_H_
#include <stdint.h>
#include <memory>
#include <string>
#include "base/callback.h"
#include "base/supports_user_data.h"
#include "build/build_config.h"
#include "content/common/content_export.h"
namespace net {
class HostResolver;
class URLRequestContext;
}
namespace content {
// ResourceContext contains the relevant context information required for
// resource loading. It lives on the IO thread, although it is constructed on
// the UI thread. It must be destructed on the IO thread.
class CONTENT_EXPORT ResourceContext : public base::SupportsUserData {
public:
ResourceContext();
~ResourceContext() override;
virtual net::HostResolver* GetHostResolver() = 0;
// DEPRECATED: This is no longer a valid given isolated apps/sites and
// storage partitioning. This getter returns the default context associated
// with a BrowsingContext.
virtual net::URLRequestContext* GetRequestContext() = 0;
// Returns a random salt string that is used for creating media device IDs.
// Returns a random string by default.
virtual std::string GetMediaDeviceIDSalt();
// Utility function useful for embedders. Only needs to be called if
// 1) The embedder needs to use a new salt, and
// 2) The embedder saves its salt across restarts.
static std::string CreateRandomMediaDeviceIDSalt();
private:
const std::string media_device_id_salt_;
};
} // namespace content
#endif // CONTENT_PUBLIC_BROWSER_RESOURCE_CONTEXT_H_
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