Cryptohome: Notify about error in async calls if cryptohome is not ready yet.

chrome/browser/chromeos/login/existing_user_controller.cc

 // Copyright (c) 2012 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 "chrome/browser/chromeos/login/existing_user_controller.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 606 matching lines @@
     content::BrowserThread::PostDelayedTask(
         content::BrowserThread::UI, FROM_HERE,
         base::Bind(&SessionManagerClient::StopSession,
                    base::Unretained(DBusThreadManager::Get()->
                                     GetSessionManagerClient())),
         base::TimeDelta::FromMilliseconds(kSafeModeRestartUiDelayMs));
   } else if (failure.reason() == AuthFailure::TPM_ERROR) {
     ShowTPMError();
   } else if (!online_succeeded_for_.empty()) {
     ShowGaiaPasswordChanged(online_succeeded_for_);
+  } else if (last_login_attempt_username_ == chromeos::login::kGuestUserName) {
+    // Show no errors, just re-enable input.
+    login_display_->ClearAndEnablePassword();
+    StartPublicSessionAutoLoginTimer();
   } else {
     // Check networking after trying to login in case user is
     // cached locally or the local admin account.
     bool is_known_user = user_manager::UserManager::Get()->IsKnownUser(
         last_login_attempt_username_);
     if (!network_state_helper_->IsConnected()) {
       if (is_known_user)
         ShowError(IDS_LOGIN_ERROR_AUTHENTICATING, error);
       else
         ShowError(IDS_LOGIN_ERROR_OFFLINE_FAILED_NETWORK_NOT_CONNECTED, error);
@@ skipping 481 matching lines @@
   is_login_in_progress_ = false;
 
   // Reenable clicking on other windows and status area.
   login_display_->SetUIEnabled(true);
 
   if (start_public_session_timer)
     StartPublicSessionAutoLoginTimer();
 }
 
 }  // namespace chromeos