File: canonical_cookie_hash.h

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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Provides utility structures for inserting a CanonicalCookie into a hash set.
// Two cookies are considered equal if their names, domains, and paths are
// equivalent.

#ifndef COMPONENTS_BROWSING_DATA_CONTENT_CANONICAL_COOKIE_HASH_H_
#define COMPONENTS_BROWSING_DATA_CONTENT_CANONICAL_COOKIE_HASH_H_

#include <stddef.h>
#include <unordered_set>

namespace net {
class CanonicalCookie;
}

namespace canonical_cookie {

// Returns a fast hash of a cookie, based on its name, domain, and path.
size_t FastHash(const net::CanonicalCookie& cookie);

struct CanonicalCookieHasher {
  std::size_t operator()(const net::CanonicalCookie& cookie) const {
    return FastHash(cookie);
  }
};

struct CanonicalCookieComparer {
  bool operator()(const net::CanonicalCookie& cookie1,
                  const net::CanonicalCookie& cookie2) const;
};

typedef std::unordered_set<net::CanonicalCookie,
                           CanonicalCookieHasher,
                           CanonicalCookieComparer>
    CookieHashSet;

}  // namespace canonical_cookie

#endif  // COMPONENTS_BROWSING_DATA_CONTENT_CANONICAL_COOKIE_HASH_H_