Show a 'remember me' checkbox in the web-app when connecting to a host that supports pairing.

remoting/protocol/pairing_client_authenticator.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "remoting/protocol/pairing_client_authenticator.h"
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "remoting/base/constants.h"
 #include "remoting/base/rsa_key_pair.h"
@@ skipping 23 matching lines @@
 
 PairingClientAuthenticator::~PairingClientAuthenticator() {
 }
 
 void PairingClientAuthenticator::CreateV2AuthenticatorWithPIN(
     State initial_state,
     const SetAuthenticatorCallback& set_authenticator_callback) {
   SecretFetchedCallback callback = base::Bind(
       &PairingClientAuthenticator::OnPinFetched,
       weak_factory_.GetWeakPtr(), initial_state, set_authenticator_callback);
-  fetch_pin_callback_.Run(callback);
+  fetch_pin_callback_.Run(true, callback);
 }
 
 void PairingClientAuthenticator::AddPairingElements(buzz::XmlElement* message) {
   // If the client id and secret have not yet been sent, do so now. Note that
   // in this case the V2Authenticator is being used optimistically to send the
   // first message of the SPAKE exchange since we don't yet know whether or not
   // the host will accept the client id or request that we fall back to the PIN.
   if (!sent_client_id_) {
     buzz::XmlElement* pairing_tag = new buzz::XmlElement(kPairingInfoTag);
     pairing_tag->AddAttr(kClientIdAttribute, client_id_);
     message->AddElement(pairing_tag);
     sent_client_id_ = true;
   }
 }
 
 void PairingClientAuthenticator::OnPinFetched(
     State initial_state,
     const SetAuthenticatorCallback& callback,
     const std::string& pin) {
   callback.Run(V2Authenticator::CreateForClient(
       AuthenticationMethod::ApplyHashFunction(
           AuthenticationMethod::HMAC_SHA256,
           authentication_tag_, pin),
       initial_state));
 }
 
 }  // namespace protocol
 }  // namespace remoting