kiosk: UMA for launch error

chrome/browser/chromeos/app_mode/kiosk_profile_loader.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 "chrome/browser/chromeos/app_mode/kiosk_profile_loader.h"
 
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 168 matching lines @@
     context.SetAccountId(user_manager::DemoAccountId());
   UserSessionManager::GetInstance()->StartSession(
       context, UserSessionManager::PRIMARY_USER_SESSION,
       false,  // has_auth_cookies
       false,  // Start session for user.
       this);
 }
 
 void KioskProfileLoader::OnAuthFailure(const AuthFailure& error) {
   LOG(ERROR) << "Kiosk auth failure: error=" << error.GetErrorString();
+  KioskAppLaunchError::SaveCryptohomeFailure(error);
   ReportLaunchResult(LoginFailureToKioskAppLaunchError(error));
 }
 
 void KioskProfileLoader::WhiteListCheckFailed(const std::string& email) {
   NOTREACHED();
 }
 
 void KioskProfileLoader::PolicyLoadFailed() {
   ReportLaunchResult(KioskAppLaunchError::POLICY_LOAD_FAILED);
 }
 
 void KioskProfileLoader::SetAuthFlowOffline(bool offline) {
   NOTREACHED();
 }
 
 void KioskProfileLoader::OnProfilePrepared(Profile* profile,
                                            bool browser_launched) {
   // This object could be deleted any time after successfully reporting
   // a profile load, so invalidate the delegate now.
   UserSessionManager::GetInstance()->DelegateDeleted(this);
 
   delegate_->OnProfileLoaded(profile);
   ReportLaunchResult(KioskAppLaunchError::NONE);
 }
 
 }  // namespace chromeos