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// 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 COMPONENTS_SESSIONS_CORE_SERIALIZED_NAVIGATION_DRIVER_H_
#define COMPONENTS_SESSIONS_CORE_SERIALIZED_NAVIGATION_DRIVER_H_
#include <string>
#include "components/sessions/core/sessions_export.h"
namespace sessions {
class SerializedNavigationEntry;
// The SerializedNavigationDriver interface allows SerializedNavigationEntry to
// obtain information from a singleton driver object. A concrete implementation
// must be provided by the driver on each platform.
class SESSIONS_EXPORT SerializedNavigationDriver {
public:
virtual ~SerializedNavigationDriver() {}
// Returns the singleton SerializedNavigationDriver.
static SerializedNavigationDriver* Get();
// Returns the default referrer policy.
virtual int GetDefaultReferrerPolicy() const = 0;
// Maps current referrer policies to old values to work around
// crbug.com/450589. Returns false if the referrer should be stripped.
virtual bool MapReferrerPolicyToOldValues(
int referrer_policy,
int* mapped_referrer_policy) const = 0;
// Sanitizes a referrer policy that might either be in the old or the new
// format. Returns false if the referrer should be stripped.
virtual bool MapReferrerPolicyToNewValues(
int referrer_policy,
int* mapped_referrer_policy) const = 0;
// Returns a sanitized version of the given |navigation|'s encoded_page_state
// suitable for writing to disk.
virtual std::string GetSanitizedPageStateForPickle(
const SerializedNavigationEntry* navigation) const = 0;
// Sanitizes the data in the given |navigation| to be more robust against
// faulty data written by older versions.
virtual void Sanitize(SerializedNavigationEntry* navigation) const = 0;
// Removes the referrer from the encoded page state.
virtual std::string StripReferrerFromPageState(
const std::string& page_state) const = 0;
};
} // namespace sessions
#endif // COMPONENTS_SESSIONS_CORE_SERIALIZED_NAVIGATION_DRIVER_H_
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