nsICookieManager2 Interface

 Add a cookie. nsICookieService is the normal way to do this. This
 method is something of a backdoor.

 @param aDomain
        the host or domain for which the cookie is set. presence of a
        leading dot indicates a domain cookie; otherwise, the cookie
        is treated as a non-domain cookie. see RFC2109.
 @param aPath
        path within the domain for which the cookie is valid
 @param aName
        cookie name
 @param aValue
        cookie data
 @param aSecure
        true if the cookie should only be sent over a secure connection.
 @param aIsSession
        true if the cookie should exist for the current session only.
 @param aExpiry
        expiration date, in seconds since the epoch. only relevant if
        aIsSession is false.

void add(in AUTF8String aDomain, in AUTF8String aPath, in ACString aName, in ACString aValue, in boolean aSecure, in boolean aIsSession, in PRInt64 aExpiry)

 Find whether a matching cookie already exists, and how many cookies
 a given host has already set. This is useful when e.g. prompting the
 user whether to accept a given cookie.

 @param aCookie
        the cookie to look for
 @param aCountFromHost
        the number of cookies found whose hosts are the same as, or
        subdomains of, the host field of aCookie

 @return true if a cookie was found which matches the host, path, and name
         fields of aCookie

boolean findMatchingCookie(in nsICookie2 aCookie, out unsigned long aCountFromHost)