Supervised users: Post blocking pool tasks with CONTINUE_SHUTDOWN behavior.

chrome/browser/chromeos/login/supervised/supervised_user_authentication.cc

 // Copyright 2014 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/supervised/supervised_user_authentication.h"
 
 #include "base/base64.h"
 #include "base/json/json_file_value_serializer.h"
 #include "base/macros.h"
 #include "base/metrics/histogram.h"
@@ skipping 269 matching lines @@
 
 void SupervisedUserAuthentication::LoadPasswordUpdateData(
     const std::string& user_id,
     const PasswordDataCallback& success_callback,
     const base::Closure& failure_callback) {
   const user_manager::User* user =
       user_manager::UserManager::Get()->FindUser(user_id);
   base::FilePath profile_path =
       ProfileHelper::GetProfilePathByUserIdHash(user->username_hash());
   PostTaskAndReplyWithResult(
-      content::BrowserThread::GetBlockingPool(),
-      FROM_HERE,
-      base::Bind(&LoadPasswordData, profile_path),
+      content::BrowserThread::GetBlockingPool()
+          ->GetTaskRunnerWithShutdownBehavior(
+                base::SequencedWorkerPool::CONTINUE_ON_SHUTDOWN)
+          .get(),
+      FROM_HERE, base::Bind(&LoadPasswordData, profile_path),
       base::Bind(&OnPasswordDataLoaded, success_callback, failure_callback));
 }
 
 std::string SupervisedUserAuthentication::BuildPasswordSignature(
     const std::string& password,
     int revision,
     const std::string& base64_signature_key) {
   ac::chrome::managedaccounts::account::Secret secret;
   secret.set_revision(revision);
   secret.set_secret(password);
@@ skipping 12 matching lines @@
     LOG(FATAL) << "HMAC::Sign failed";
 
   std::string raw_result(out_bytes, out_bytes + sizeof(out_bytes));
 
   std::string result;
   base::Base64Encode(raw_result, &result);
   return result;
 }
 
 }  // namespace chromeos