PassphraseToKey    31 chrome/browser/chromeos/settings/token_encryptor.cc   system_salt_key_.reset(PassphraseToKey(system_salt_, system_salt_));
PassphraseToKey    50 chrome/browser/chromeos/settings/token_encryptor.h   crypto::SymmetricKey* PassphraseToKey(const std::string& passphrase,