Replace rtc::CryptString with std::string

jingle/notifier/base/gaia_token_pre_xmpp_auth.h

Index: jingle/notifier/base/gaia_token_pre_xmpp_auth.h
diff --git a/jingle/notifier/base/gaia_token_pre_xmpp_auth.h b/jingle/notifier/base/gaia_token_pre_xmpp_auth.h
index 86da7a04c1aea7cd84d78526817219be1cff2b8a..a2c3b3491613bcfbb5a4424db1feb7a74ae1fcf9 100644
--- a/jingle/notifier/base/gaia_token_pre_xmpp_auth.h
+++ b/jingle/notifier/base/gaia_token_pre_xmpp_auth.h
@@ -29,7 +29,7 @@ class GaiaTokenPreXmppAuth : public buzz::PreXmppAuth {
   // this point.
   void StartPreXmppAuth(const buzz::Jid& jid,
                         const rtc::SocketAddress& server,
-                        const rtc::CryptString& pass,
+                        const std::string& pass,
                         const std::string& auth_mechanism,
                         const std::string& auth_token) override;