text: #include <vector>
  #include <map>
  
  #include "net/cookies/CanonicalCookie.h"
  
  namespace blink {
  class KURL;
  }
  
  namespace net {
  
  class CookieMonster {
  public:
  	CookieMonster();
  	~CookieMonster();
  
  	// Terminology:
  	//    * The 'top level domain' (TLD) of an internet domain name is
  	//      the terminal "." free substring (e.g. "com" for google.com
  	//      or world.std.com).
  	//    * The 'effective top level domain' (eTLD) is the longest
  	//      "." initiated terminal substring of an internet domain name
  	//      that is controlled by a general domain registrar.
  	//      (e.g. "co.uk" for news.bbc.co.uk).
  	//    * The 'effective top level domain plus one' (eTLD+1) is the
  	//      shortest "." delimited terminal substring of an internet
  	//      domain name that is not controlled by a general domain
  	//      registrar (e.g. "bbc.co.uk" for news.bbc.co.uk, or
  	//      "google.com" for news.google.com).  The general assumption
  	//      is that all hosts and domains under an eTLD+1 share some
  	//      administrative control.
  
  	// CookieMap is the central data structure of the CookieMonster.  It
  	// is a map whose values are pointers to CanonicalCookie data
  	// structures (the data structures are owned by the CookieMonster
  	// and must be destroyed when removed from the map).  The key is based on the
  	// effective domain of the cookies.  If the domain of the cookie has an
  	// eTLD+1, that is the key for the map.  If the domain of the cookie does not
  	// have an eTLD+1, the key of the map is the host the cookie applies to (it is
  	// not legal to have domain cookies without an eTLD+1).  This rule
  	// excludes cookies for, e.g, ".com", ".co.uk", or ".internalnetwork".
  	// This behavior is the same as the behavior in Firefox v 3.6.10.
  
  	// NOTE(deanm):
  	// I benchmarked hash_multimap vs multimap.  We're going to be query-heavy
  	// so it would seem like hashing would help.  However they were very
  	// close, with multimap being a tiny bit faster.  I think this is because
  	// our map is at max around 1000 entries, and the additional complexity
  	// for the hashing might not overcome the O(log(1000)) for querying
  	// a multimap.  Also, multimap is standard, another reason to use it.
  	// TODO(rdsmith): This benchmark should be re-done now that we're allowing
  	// subtantially more entries in the map.
  	typedef std::multimap<std::string, CanonicalCookie*> CookieMap;
  	typedef std::pair<CookieMap::iterator, CookieMap::iterator> CookieMapItPair;
  	typedef std::vector<CookieMap::iterator> CookieItVector;
  
  	CookieMap cookies_;
  
  	// Internal reasons for deletion, used to populate informative histograms
  	// and to provide a public cause for onCookieChange notifications.
  	//
  	// If you add or remove causes from this list, please be sure to also update
  	// the CookieMonsterDelegate::ChangeCause mapping inside ChangeCauseMapping.
  	// Moreover, these are used as array indexes, so avoid reordering to keep the
  	// histogram buckets consistent. New items (if necessary) should be added
  	// at the end of the list, just before DELETE_COOKIE_LAST_ENTRY.
  	enum DeletionCause {
  		DELETE_COOKIE_EXPLICIT = 0,
  		DELETE_COOKIE_OVERWRITE,
  		DELETE_COOKIE_EXPIRED,
  		DELETE_COOKIE_EVICTED,
  		DELETE_COOKIE_DUPLICATE_IN_BACKING_STORE,
  		DELETE_COOKIE_DONT_RECORD,  // e.g. For final cleanup after flush to store.
  		DELETE_COOKIE_EVICTED_DOMAIN,
  		DELETE_COOKIE_EVICTED_GLOBAL,
  
  		// Cookies evicted during domain level garbage collection that
  		// were accessed longer ago than kSafeFromGlobalPurgeDays
  		DELETE_COOKIE_EVICTED_DOMAIN_PRE_SAFE,
  
  		// Cookies evicted during domain level garbage collection that
  		// were accessed more recently than kSafeFromGlobalPurgeDays
  		// (and thus would have been preserved by global garbage collection).
  		DELETE_COOKIE_EVICTED_DOMAIN_POST_SAFE,
  
  		// A common idiom is to remove a cookie by overwriting it with an
  		// already-expired expiration date. This captures that case.
  		DELETE_COOKIE_EXPIRED_OVERWRITE,
  
  		// Cookies are not allowed to contain control characters in the name or
  		// value. However, we used to allow them, so we are now evicting any such
  		// cookies as we load them. See http://crbug.com/238041.
  		DELETE_COOKIE_CONTROL_CHAR,
  
  		DELETE_COOKIE_LAST_ENTRY
  	};
  	
  	std::string GetKey(const std::string& domain) const;
  
  	void FindCookiesForHostAndDomain(const blink::KURL& url,
  		const CookieOptions& options,
  		bool update_access_time,
  		std::vector<CanonicalCookie*>* cookies);
  
  	void FindCookiesForKey(const std::string& key,
  		const blink::KURL& url,
  		const CookieOptions& options,
  		const double& current,
  		bool update_access_time,
  		std::vector<CanonicalCookie*>* cookies);
  
  	bool SetCanonicalCookie(CanonicalCookie* cc, const double& creation_time, const CookieOptions& options);
  
  	void UpdataCookie(const blink::KURL& url, const std::string& name, const std::string& value);
  
  	CookieList GetAllCookiesForURLWithOptions(const blink::KURL& url, const CookieOptions& options);
  
  	bool DeleteAnyEquivalentCookie(const std::string& key, const CanonicalCookie& ecc, bool skip_httponly, bool already_expired);
  
  	void InternalDeleteCookie(CookieMap::iterator it, bool sync_to_store, DeletionCause deletion_cause);
  
  	CookieMonster::CookieMap::iterator InternalInsertCookie(const std::string& key, CanonicalCookie* cc, bool sync_to_store);
  
  	int GarbageCollect(const double& current, const std::string& key);
  
  private:
  	bool persist_session_cookies_;
  	bool keep_expired_cookies_;
  };
  
  }