Remove signin and persist from gaia_authenticator.

chrome/service/cloud_print/cloud_print_proxy_backend.cc

Index: chrome/service/cloud_print/cloud_print_proxy_backend.cc
diff --git a/chrome/service/cloud_print/cloud_print_proxy_backend.cc b/chrome/service/cloud_print/cloud_print_proxy_backend.cc
index 1b0989ac1aaa6d111f9069efe31e2e9d79ecf6bd..4a8da055f8a839a82e3154f110d435c4454f4a55 100644
--- a/chrome/service/cloud_print/cloud_print_proxy_backend.cc
+++ b/chrome/service/cloud_print/cloud_print_proxy_backend.cc
@@ -248,13 +248,13 @@ void CloudPrintProxyBackend::Core::DoInitializeWithLsid(
   gaia_auth_for_talk->set_message_loop(MessageLoop::current());
   // TODO(sanjeevr): Handle auth failure case. We basically need to disable
   // cloud print and shutdown.
-  if (gaia_auth_for_talk->AuthenticateWithLsid(lsid, true)) {
+  if (gaia_auth_for_talk->AuthenticateWithLsid(lsid)) {
     scoped_refptr<ServiceGaiaAuthenticator> gaia_auth_for_print =
         new ServiceGaiaAuthenticator(
             user_agent, kCloudPrintGaiaServiceId, kGaiaUrl,
             g_service_process->io_thread()->message_loop_proxy());
     gaia_auth_for_print->set_message_loop(MessageLoop::current());
-    if (gaia_auth_for_print->AuthenticateWithLsid(lsid, true)) {
+    if (gaia_auth_for_print->AuthenticateWithLsid(lsid)) {
       // Let the frontend know that we have authenticated.
       backend_->frontend_loop_->PostTask(FROM_HERE, NewRunnableMethod(this,
           &Core::NotifyAuthenticated, gaia_auth_for_print->auth_token(),