chrome/browser/browsing_data/canonical_cookie_hash.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 // Provides utility structures for inserting a CanonicalCookie into a hash set.
   6 // Two cookies are considered equal if their names, domains, and paths are
   7 // equivalent.
   8
   9 #ifndef CHROME_BROWSER_BROWSING_DATA_CANONICAL_COOKIE_HASH_H_
  10 #define CHROME_BROWSER_BROWSING_DATA_CANONICAL_COOKIE_HASH_H_
  11
  12 #include "base/containers/hash_tables.h"
  13 #include "net/cookies/canonical_cookie.h"
  14
  15 namespace canonical_cookie {
  16
  17 // Returns a fast hash of a cookie, based on its name, domain, and path.
  18 size_t FastHash(const net::CanonicalCookie& cookie);
  19
  20 struct CanonicalCookieHasher {
  21   std::size_t operator()(const net::CanonicalCookie& cookie) const {
  22     return FastHash(cookie);
  23   }
  24 };
  25
  26 struct CanonicalCookieComparer {
  27   bool operator()(const net::CanonicalCookie& cookie1,
  28                   const net::CanonicalCookie& cookie2) const {
  29     return cookie1.Name() == cookie2.Name() &&
  30            cookie1.Domain() == cookie2.Domain() &&
  31            cookie1.Path() == cookie2.Path();
  32   }
  33 };
  34
  35 typedef base::hash_set<net::CanonicalCookie,
  36                        CanonicalCookieHasher,
  37                        CanonicalCookieComparer> CookieHashSet;
  38
  39 };  // namespace canonical_cookie
  40
  41 #endif  // CHROME_BROWSER_BROWSING_DATA_CANONICAL_COOKIE_HASH_H_